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JIS S 2147 = 1998

JAPANESE INDUSTRIAL STANDARD

Translated and Published by Japanese Standards Association

Portable cookers attached to liquefied petroleum gas cylinder

ICS 97.040.20 Descriptors : cookers, portable, liquefied petroleum gas, heaters, gas cylinders Reference number : JIS S 2147 : 1998 (E)

18 s

s 2147: 1998

Foreword

This translation has been based on the original Japanese Industrial Standard revised by the Minister of Intemational Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently, JIS S 2147:1991 has been replaced with JIS S 2147: 1998.

]SA 1999

Date of Establishment: 1991-07-01 Date of Revision: 1998-02-20 Date of Public Notice in Official Gazette: 1998-02-20 Investigated by: Japanese Industrial Standards Committee

Divisional Council on Consumer Life

JIS S 2147:1998, First English edition published in 1999-04

Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN

In the event of any doubts arising as to the contents, the original JIS is to be the final authority.

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

Printed in Japan

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JAPANESE INDUSTRIAL STANDARD JIS S 2147: 1998

Portable cookers attached to liquefied petroleum gas cylinder

Introduction Portable cookers attached to liquefied petroleum gas cylinder are designated as Class 1 liquefied petroleum gas appliance based on the Law concern-ing the Securing of Safety and the Optimization of Transaction of Liquefied Petro-leum Gas, and subjected to the official approval according to the technical regulation and approving method of the Ministerial Ordinance concerning the Official Ap-proval of Liquefied Petroleum Gas Articles. Recently, portable cookers are popular-ized universally through using for business as well as household appliances as a hot-pot table cooking tool or outdoor goods, and further for a handy emergency tool at the time of natural disaster and the like.

Accordingly, JIS S 2147 was established in 1991 together with JIS S 2148 for the gas cylinders for portable gas cookers, and revised in 1998 to comply with the technical regulation of the Ministerial Ordinance concerning the Official Approval of Liquefied Petroleum Gas Articles revised on May 1, 1996.

1 Scope This Japanese Industrial Standard specifies portable cookers (hereafter referred to as "appliance") (2) with a built-in cylinder (1) filled with liquefied petro-leum gas (hereafter referred to as "gas").

Notes (1) Cylinders which are specified in JIS S 2148. ( 2) Portable cookers used for boiling and cooking on the upper face, which

are provided with a trivet and the like to put the cooking containers on.

2 Normative references The standards listed in Attached Table 1 contain pro-visions which, through reference in this Standard, constitute provisions of this Standard. As to those normative references, the most recent editions thereof shall be applied.

3 Performance The performance of appliances, when tested by clause 6, shall be as given in Table 1.

Table 1 Performance

Item Performance Applicable subclause No.

Gastightness From cylinder and appliance joint To be free from gas leakage. 6.4 of gas-passage to governor high-pressure side

From governor low-pressure side to appliance valve

From appliance valve to flame port

Pressure resistance To be free from leakage, deformation and breakage. 6.5 of gas-passage

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Table 1 Performance (continued)

Item Performance Applicable subclause No.

Usual service To be ignited securely without explosive light up, and to transfer flame to 6.7 condition whole ports within 4 s.

To be free from flame lifting.

To be free from flickering out.

Flames to be uniform.

To be free from backfire. I: 0

Continous noises shall be 60 dB max. ~ "' ::s

,1:> El To be free from explosive noise at extinction, and to be extinguished within 0

0 4 s.

The theoretical carbon monoxide concentration in dry combustion gas (vol %) (hereafter referred to as "CO %") shall be 0.14 % max.

To be free from soot generation.

The electrode not to. be contacted usually with yellow flame.

Condition of To be free from flicker, fogginess and irritating odor. using oversize pot

During Surfaces to be touched by hand at Metallic part 60 oc max. 6.8 normal operation working Non-metallic part 70 C max.

Surfaces possible to be touched by 140 oc max. hand at operation

Surface of gas-passing part of ap 85 C max. or not exceeding the pliance valve body temperature at which conformity

to the requirement for gastightness Surface of gas-passing part of gas of gas-passage and absence of oper-shut-off valve body other than ap ational abnormalities are confirmed pliance valve. after heat resistance test.

Q)

"' Surface of gas-passing part of appli- 70 C max. or not exceeding the ;::: Q) ance governor temperature at which conformity to .. ::s the gastightness of gas-passage and ...

as the change of regulating pressure to .. Q) be 8 % or less are confirmed after c:l. a the heat resistance test. Q)

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Surface of ignition unit Not exceeding 85 C or the temper ature at which the heat resistance test confirms there is no hindrance to use.

Surface of dry cell 55 oc max.

Surfaces of the wooden walls at sides 100 oc max. and rear faces and wooden base underneath the appliance body.

During use of Surfaces of the wooden walls at sides 135 oc max. oversize pot and rear faces and wooden base

underneath appliance body.

Electrical ignition To be ignited at least 8 out of 10 times, without consecutive non-ignition 6.9 and free from explosive ignition.

Item

Pressure inside the cylinder

Working perform-ance of pressure sensitive safety device

Repeated operation

Practical perform-ance of appliance

Table 1 Performance (concluded)

Performance

0.4 MPa max.

To function in the range of 0.4 MPa to 0.6 MPa. Those constructed as closing gas-passage shall not open the passage auto-matically after functioning.

Appliance 12 000 times To conform to the requirements for valve gastightness of gas-passage and to

be free from difficulty on use.

Electrical 12 000 times To conform to the requirements for ignition electrical ignition and to be free device from difficulty on use.

Appliance At normal 30 000 To conform to the requirements for governor pressure times gastightness of gas-passage and

(0.2 MPa) change of regulated pressure not to exceed 8 %.

At high pres- 1 000 To conform to the requirements for sure (safety times gastightness of gas-passage and device working change of regulated pressure not to pressure) exceed 8 %.

Pressure 1 000 times To conform to the requirements for sensitive gas-passage tightness and working safety of pressure sensitive safety device. device

Cylinder to 6 000 times To conform to the requirements for appliance gastightness of gas-passage. junction To be not less than 40 % in thermal efficiency

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Applicable subclause No.

6.10

6.11

6.12

6.13

Remarks : The reference ambient temperature at the temperature rise test shall be 35 C.

4 Construction and dimensions

4.1 Construction in general The appliance and each part thereof shall be manu-factured with taking safety and durability to a gas leakage, fire accident and the like into consideration, constructed so as to prevent breakage or deformation harm-ful to use on the ordinary transportation, installation and the like, and comply with the following :

a) The combustion condition of the appliance bumer shall be recognizable from outside.

b) The burner shall generally be capable of ignition with a match, ignition rod or the like.

c) Edges of the part to be touched with hands during use or cleaning shall be smooth.

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d) The part where removability is required for cleaning, repairing, etc. shall gener-ally be capable of detaching/reattaching with a common tool. -

e) The screw threads used for assembling each part shall be effective in fastening, and for the part where removability is required for maintenance and checking shall be usable repeatedly.

f) The gas-passing parts shall be as follows :

1) Gas pipes shall be settled at a place not to be exposed to excessive heat or corrosion, otherwise protective measures shall be taken.

2) Connections shall be joined by weld, screw-in, bolt-nut, screws and the like, and be gastight.

3) To be equipped with an appliance valve as specified in 4.2.

4) Nozzles shall be as specified in 4.3.

5) To be equipped with a burner as specified in 4.4.

g) To be equipped with a trivet and the like as specified in 4.6.

h) To be equipped with a dish as specified in 4. 7. Excepting those for outdoor use such as camping.

i) The attaching/detaching between the cylinder and appliance shall be smooth and secure, and not cause any abnormality at the operations.

j) The joining of cylinder to appliance shall not be allowed other than by means of moving the cylinder in its axial direction. And not to be constructed to use a spring directly for the joining of cylinder to the appliance.

k) When a cylinder is attached, there shall be no gas leakage from the connection.

1) To be incapable of putting a spare cylinder in under the usual service condition.

m) To be incapable of joining a cylinder to the appliance unless the appliance valve is in a closing state.

n) To be free from gas detention in the cylinder built-in part.

o) To be equipped with an appliance governor.

p) To be equipped with a pressure sensitive safety device as specified in 4.9.

q) Devices used for the appliance shall be as follows :

1) The air adjuster shall be as specified in 4.5.

2) The electric ignition device shall be as specified in 4.8.

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r) Any part other than the legs shall not contact the table directly, under the usual service condition.

s) Not to move or fall down easily by a usual operation, when it is under the normal setting condition.

t) The gastightness shall not be spoiled by the vibration and impact applied dur-ing the usual use or transportation (to be confirmed by 6.2.3).

u) When tested by 6.2.2, to be free from falling down and such a movement or falling off of the parts as possible to cause fire, at an angle of 10 o or less in any inclining direction.

v) Not to cause a fracture or deformation harmful to use by a load which might be applied usually [to be confirmed by 6.2.5 b)].

w) For those constructed to release the gas from the appliance when removing the cylinder after closing the appliance valve, the inner cubic capacity of the space gathering the gas to be released (except the part from the appliance valve to the flame port) shall not exceed 1 cm3

x) The gas taken out from the cylinder under the service condition shall be m gaseous.

y) Where the dish or trivet is mounted in a state of face downward, to be incapable of ignition or of supporting a pot and the like stably [to be confirmed by 6.2.6 a)].

z) For the joining of cylinder to appliance, if the cylinder is attached in an unsuit-able state, it shall be incapable of mounting easily [to be confirmed by 6.2.6 b)].

4.2 Appliance valve The appliance valve shall be as follows :

a) To be capable of opening/closing the gas-passage to the burner smoothly and securely. Those functioning on multiple gas-passages shall be capable of open-ing/closing every gas-passage securely.

b) For those opening/closing by rotating operations, the direction of "Open" shall generally be counterclockwise.

4.3 Nozzle Nozzles shall be located at such a position as not being clogged easily due to dust, foreign matter or the like, or be constructed not to be cloggy.

4.4 Burner The burners shall be as follows :

a) There shall be no defects harmful to use on the pressing jointed, welded or other parts.

b) The flame port shall be processed correctly, and free from deformation which affects combustion.

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c) The relative position with other associated parts, for example the nozzle, elec-tric ignition device, etc., can be maintained securely and are attached so that under ordinary conditions of use they will not move or become out of place.

d) The flame shall not heat and injure any part beyond the necessary range.

e) To be capable of cleaning easily. Excepting those constructed not to be exposed to a boiling overflow and the like.

4.5 Air adjuster The air adjuster shall be as follows : a) To be easy in adjusting air amount (except those requiring no adjusting in the

use), and not to change the setting position by the normal using operations.

b) For those equipped with an air adjuster lever, it shall be located at a position capable of easy operation, which shall be smooth and secure, and marked with the open/close direction clearly.

4.6 Trivet and the like The trivet and the like shall be as follows :

a) To be that having a strength not insufficient to the usual service [to be con-firmed by 6.2.5 a)].

b) To be stable under the usual service condition.

4. 7 Dish The dish shall be as follows :

a) To be shaped so as to be capable of receiving boiling overflows.

b) Those constructed to be removable shall generally be capable of detaching/reat-taching easily without using a tool. Where integrated with the top plate, these may be as using a common tool. Further, those for an appliance of which the interior allows to be cleaned easily are excluded.

4.8 Electrical ignition device

4.8.1 Those ignited by using an electric heat shall be as follows:

a) The ignition heater shall be held so that the relative position to the burner shall not change easily.

b) Expendables such as dry cells and ignition heaters shall be easy in replacement.

4.8.2 Those ignited by using a discharge spark shall be as follows :

a) Dry cells used for the power source shall be easy in replacement.

b) The electrode part shall be located at a position where yellow flames will not contact usually.

c) The electrode part shall be fixed so that the relative position to the bumer and the electrode gap will not change by the normal using operation.

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d) The part between the live part and dead metallic part in the high voltage wiring shall hold a sufficient clearance not less than the electrode gap, or effective insulating measures to prevent a leakage of electricity at the igniting operation shall be taken.

e) The high voltage wiring part possible to be touched by hand during the usual operations shall be provided with an effective insulation coating (at least 50 MQ).

4.9 Pressure sensitive safety device The pressure sensitive safety device shall be as follows :

a) To be constructed so that the gas supply is stopped, by closing the gas-passage or removal of the built-in cylinder from the appliance, at a pressure of the part from the junction of the cylinder and appliance to the high pressure part of the appliance governor in a range of> 0.4 MPa but < 0.6 MPa ..

b) Those that the gas-passage is closed at a pressure of the high pressure part in a range of > 0.4 MPa but .:s;; 0.6 MPa shall be constructed so that the gas-passage never opens automatically after the gas-passage is closed at a pressure change in the high pressure part.

5 Material Materials used for the appliance shall endure the mechanical, chemi-cal and thermal effects which might be applied under the conditions of the usual service and maintenance, and conform to the following :

a) The material of gas enveloping parts other than the packings (Including a dia-phragm and rubber made valve body. The same shall apply hereafter.) and sealants (Including a grease. The same shall apply hereafter.) shall be such incombustible materials as not to fuse at 350 oc for the part from the cylinder junction to the nozzle holder inlet, and at 500 C for the part from the nozzle holder to the burner flame port, and conform to one of the following (hereafter referred to as "corrosion resistant material").

1) Those given in Attached Table 2, or at least equivalent in corrosion resis-tance.

2) To be free from corrosion or wjth a rating number 9 to 9.8 in the corrosion area rate, when tested by 6.3.2 a) for 24 h.

3) To be free from rust, blister and peeling, when tested by 6.3.2 b) for 24 h.

4) To be free from peeling on the enameled part, when tested by 6.3.4.

b) Packings, sealants and other non-metal gas-tightening components used for the gas passing part shall be as follows :

1) The material of packings such as rubber and plastics, when tested by 6.3.3 a), shall be at most 20 % in mass change rate, and free from softening, brittleness, etc. harmful to use.

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2) Sealants, when tested by 6.3.3 b), shall have the mass change rate of at most 10 % at a gas temperature of 20 C, and at most- 25 % at a gas temperature of 4 C.

c) The electric conductive material shall be copper, copper alloy, stainless steel or those at least equivalent in electrical, thermal and mechanical stabilities, and resistant to rust. Excepting those used for the parts requiring elasticity or when the structure inevitably requires materials other than those mentioned above for some part, if there is no risk of danger.

d) Heat insulating materials used for gas-passage, combustion part and electrical equipment vicinity part, when tested by 6.3.5, shall not burn, or even if they burn, shall be extinguished within 1 min by themselves after removal of the flame.

e) The air adjuster shall be of an incombustible, corrosion resistant material not ( _ fusing at 500 oc.

f) The trivet shall be of an incombustible material not fusing at 500 C.

g) The dish shall be of an incombustible corrosion resistant material not fusing at 500 C.

h) Legs used for the appliance shall be as follows :

1) The part to be in contact with the table shall be of rubber or such a material as not to allow the appliance to slide easily.

2) The part of rubber or material other than metal to be in contact with the table, when tested by 6.3.6, shall not be harmful to use.

3) The rubber used for the part to be in contact with the table shall be of 50 to 90 in Shore hardness (HS).

i) The burner support shall be of an incombustible, corrosion resistant material.

6 Test methods

6.1 Test condition The test conditions shall be as follows:

a) Test room condition The test room conditions shall be as given in Table 2, unless particularly specified in each provision. Where, by the test items, the test results are not affected, these need not apply.

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Table 2 Test room conditions

Test room temperature, etc. Condition

Test room temperature (3) The test room temperature shall be at an "ordinary temperature" specified in Table 1 of JIS Z 8703 (standard temperature con-dition Grade 15 : 20 C 15 C) and the temperature variation during the test shall be 5 C.

Test room humidity The test room humidity shall be at an "ordinary humidity" speci-fied in Table 2 of JIS Z 8703 [standard humidity condition Grade 20 : (65 20) %].

Room atmosphere Not to contain 0.2 % or more carbon dioxide and 0.002 % or more carbon monoxide in the air of the test room.

Further, there shall be no air stream affecting the combustion.

Note (3) For the measurement of the test room temperature, generally fixing each mercury bulb part of thermometer at a place apart about 1 m from the appliance and on a level with the appliance upper face (to be a height of 1.5 m, if it exceeds 1.5 m), measure the temperatures at four positions of the front, rear, left and right, and take the mean value as the room temperature. The mercury bulb part of thermom-eters shall be prevented from exhaust gas, radiation heat and the like of the appliance.

b) Testing cylinder For the testing cylinder, that specified in JIS S 2148 shall be used.

c) Testing device and apparatus The testing devices and apparatus shall be as given in Attached Tables 3 and 4.

6.2 Construction and dimensions

6.2.1 General Testing for the items of which test methods are not particularly specified shall be performed by visual observation, operation or using test devices, according to the contents specified in clause 4.

6.2.2 Incline falling-down test For the incline falling-down test, with the ap-pliance placed horizontally on an inclining tester (or testing board), incline the appliance setting face of the tester (or testing board) gradually by 10 degrees to examine for falling-down and movement or falling-off of the parts in danger of fire.

6.2.3 Vibration and drop tests Performing the tests of vibration and dropping according to the following, examine whether the specimen satisfies the require-ments for gastightness of gas-passage and combustion (normal service condition) given in Table .1, by the methods specified in 6.4 and 6.7.1.

a) Vibration test For the vibration test, with the appliance in the packaged state for transportation placed horizontally on a vibration tester, vertical and lateral vibrations with each frequency of 600 cpm and total amplitude of 5 mm shall be applied for each 30 min.

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b) Drop test The drop test shall be as follows:

1) After attaching a cylinder to the appliance to get ready for ignition, drop it from a height of 30 em with the burner upward, by using a drop tester, onto a wooden floor face horizontally.

2) With the appliance packaged for transportation, drop it from a height of 1 m with the bumer part upward, by using a drop tester, onto the floor face horizon tally.

6.2.4 Construction of electrical ignition device The construction test of elec-trical ignition devices using a discharge spark shall be according to the following :

a) As to the position of electrode [ 4.8.2 b)], to be tested by visual observation and the like, or according to 6.7.1 c) 10).

b) As to the fixing of electrode [ 4.8.2 c)], to be tested by visual observation or the like.

6.2.5 Load test The load test shall be as follows :

a) Trivet Placing the trivet on a surface plate, apply a static load of 50 N (a weight of 260 mm in diameter) onto the middle part for 5 min to examine for occurrence of deformation and fracture by visual observation or the like.

b) Appliance Placing the appliance on a rigid board, apply a static load of 50 N (a weight of 260 mm in diameter) onto the middle part of each trivet of the appliance for 5 min to examine for occurrence of deformation and fracture by visual observation.

6.2.6 Mishandling prevention test The mishandling prevention test shall be as follows:

a) Test for prevention of mismounting dish and the like With the dish set upside down, or the trivet removed if it is separable, place a pot on the dish and operate ignition, and examine whether it allows to place the pot stably and to ignite by visual observation.

b) Test for prevention of cylinder mismounting

1) For the test, a cylinder having the maximum stem length specified in Table 3 of JIS S 2148 shall be used.

2) Mount the cylinder slightly out of the correct position, apply a force of 150 N onto the midpoint of the operation knob (a torque of 100 N em for rotat-ing types) for 3 s, and examine whether it allows to be fitted or not.

3) After testing of 1), examine whether it conforms, under the usual service condition, to the requirements of gastightness of gas-passage, ignition and working of pressure sensitive safety device given in Table 1, and 4.1 i) and m).

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6.3 Material test

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6.3.1 Heat resistance test The heat resistance test shall be as follows:

a) For the material specified in JIS and the other of which the melting point is definite, check up the melting point.

b) For the material with unknown melting point, putting a specimen into a gas or electric furnace, after raising the temperature inside the furnace gradually up to the corresponding specified temperature, keep the temperature for 1 h to examine for melting by visual observation or the temperature rising record of the specimen.

6.3.2 Corrosion resistance test The corrosion resistance test shall be as fol-lows:

a) Salt spray test After spraying salt water conforming to clause 6 of JIS Z 2371 in a salt spray chamber conforming to clauses 2 and 8 of the said Standard for 24 h, examine for the corrosion resistance by the rating number standard chart of Annex of JIS Z 2371.

b) Salt spray test (for paint film) With a painted specimen (size of 130 mm x 100 mm) subjected to a crosscut as shown in Fig. 1 on the surface with a single edged razor by a pressing force of 5 N, seal the edges of the specimen, spray under the same conditions as a) for 24 h, and examine for generating rust and swelling on any part excepting 2.5 mm width along the crosscut lines and 10 mm width along the edges.

Next, wash it with water, dry it at the room temperature for 24 h, adhere a 12 mm width adhesive cellophane tape specified in JIS Z 1522 onto a line of the crosscut, and examine for film peeling on any part excepting 2.5 mm width from the crosscut line when pulling off the tape in the direction at right angles to the painted surface.

Unit: mm

130

Edge 70 15

Fig. 1 Test piece for salt spray test of paint film

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6.3.3 Gas resistance test The gas resistance test shall be according to the fol-lowing:

a) Gasket and valve Immerse the three specimens each mass of which is previ-ously measured, in n-pentane at a temperature of > 5 oc but ~ 25 oc for 72 h or more, take them out from n-pentane, then after leaving in the air for 24 h measure each mass change and calculate the mass change rate to obtain the arithmetic mean value.

Further, examine for deterioration or deformation harmful to use by visual observation, etc.

L1 M = M- Mo X 100 Mo

where, L1 M: mass change rate(%) M : mass after testing (g)

M 0 : mass before testing (g)

b) Sealant Spread approximately 1 g of the sealant on an aluminium plate uni-formly, leave it at an ordinary temperature for 24 h, put it into a desiccator of gas resistance test apparatus for sealant as shown in Fig. 2, open the glass plugs A and B to replace the inner air with butane gas, close the glass plug B to keep the butane pressure in the U-tube at 5 kPa, leave it at 20 oc 1 C and 4 oc 1 oc for each 1 h, and measure each mass change amount to calculate the mass change rate from the following formula.

L1 M = M -Mo X 100 Mo

where,

Pressure variable type regulator

Butane~

L1M: M:

mass change rate (%) mass after testing (g)

M 0 : mass before testing (g)

Water column ~meter

A B

U-tube with glass active plug

Thermometer

20 c 1 c or 4 c 1 c

Thermostatic water tank

Fig. 2 Gas resistance test apparatus for sealant

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6.3.4 Steel ball impact test With a burner fixed on a wooden (oak) board corre-sponding to the burner size, drop a steel ball of 36.51 mm diameter specified in JIS B 1501 (approximately 200 g in mass) onto the flattest part of the burner from a height of 300 mm without forcing, and examine whether there is peeling on the enameled part.

6.3.5 Incombustibility test (Heat insulating materials) Cutting out a test piece of 50 mm 1 mm width, 150 mm 1 mm length and 13 mm 1 mm thickness (to be the original size, if impossible to take these sizes) from a position in which the density is approximately uniform, expose the specimen to a flame for 1 min with a test apparatus as shown in Fig. 3, remove the flame from the specimen by at least 20 em to examine visually whether the specimen burns or not.

Further, measure the time for extinction, if it burns.

Ring stand

Bunsen burner (caliber : 11 mm)

wire diameter: 0.8 mm mesh size : 6.4 mm net size : 76 mm x 216 mm

Fig. 3 Incombustibility test apparatus

Remarks 1 The wire net shall be supported horizontally. 2 The burner shall be regulated and placed so that the blue flame

attains to a height of about 38 mm and aligns with the vertical section of the vertically bent part of the wire net. The distance between the burner upper end and the wire net shall be 13 mm.

3 The specimen shall be placed in contact with the surface of vertically bent part of the wire net.

For a deformed specimen, place it closest to the position ex-posed to the flame.

4 For the gas, use propane.

6.3.6 Oilproof test For the oilproof test of rubber and the like used for legs, immerse the specimen in edible oil (soybean oil or the like) at a temperature of 20 oc 15 oc for 24 h to examine for any deformation harmful to use.

6.4 Gastightness test of gas-passage The gastightness test of gas-passage shall be according to the following :

a) For the cylinder to appliance joining part, applying a pressure of 0.9 MPa, examine for leakage with a testing solution and the like. For those equipped with a safety device constructed to release the cylinder from the appliance, limit the applying pressure to that starting the safety device.

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b) For the part from the joint of cylinder and appliance to the high pressure side of appliance governor, with the appliance attached to a test apparatus as shown in Attached Fig. 1 and the appliance valve fully opened; apply a pressure of 0.9 MPa to examine for leakage at every part with a testing solution.

c) For the part from the low pressure side of appliance governor to the appliance valve, attaching cylinder to the appliance and fully opening the appliance valve, examine for leakage at every part with a detecting flame, testing solution or the like.

d) For the part from the appliance valve to the flame port, fully open the appliance valve, and ignite the burner to examine for leakage at every part with a detect-ing flame.

6.5 Pressure resistance test of gas-passage The pressure resistance test shall be as follows :

a) For the part from the cylinder to the appliance governor, connect the appliance with a test apparatus as shown in Attached Fig. 1 with the appliance valve fully opened, apply a pressure of 1.3 MPa for 1 min and examine for absence of leakage, deformation and breakage by visual observation. For those equipped with a pressure sensitive safety device constructed to remove the cylinder from the appliance, carry out the test to prevent the safety device from functioning.

b) The part to the high pressure side of appliance governor shall be tested by the method specified in a) and examined for absence of leakage, deformation and breakage by visual observation.

6.6 Gas consumption test The gas consumption test shall comply with the fol-lowing:

a) Test conditions The test conditions shall be as follows :

1) Test cylinder For the test cylinder, use the test cylinder specified in 6.1 b) and left in the air at a temperature of 20 +g oc for duration of at least 2 h.

2) Room temperature during the test The room temperature during the test shall be 20 +g C.

3) Appliance condition For the appliance condition, make the appliance in a service condition at which the using gas amount is maximum, and the cooker part in the usual service condition. Remarks: The usual service condition of cooker part means such a condi-

tion that a testing pot of the size as given in Table 3, containing water up to at least + of the pot depth is on the cooker with the burner ignited and burning.

Burners used with adjusting the air amount shall be regulated in a satisfactory condition to be used.

b) Measuring method Carrying out each combustion of 30 min after ignition on three cylinders, examine the gas consumption (g/h) from the following formula.

( --

2 3 W=-I(Won -Wn)

3 n=l

where, W : gas consumption (g!h) Won : cylinder mass before test (g) Wn : cylinder mass after test (g)

Table 3 Size of testing pot

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Gas consumption Nominal Opening Depth Roundness Mass Water amount at size of pot diameter of pot thermal efficiency

bottom measurement glh em mm mm mm g kg

:iii 90 14 140 64 20 130 0.65

> 90 but :iii 115 16 160 73 23 155 1.0

> 115 but :iii 145 18 180 82 26 190 1.4

> 145 but .:iii 175 20 200 91 29 250 2.0

> 175 but :ii 210 22 220 100 32 300 2.7

> 210 but :iii 250 24 240 109 35 380 3.5

> 250 but :iii 300 26 260 118 38 470 4.4

> 300 28 280 128 41 585 5.6

- 30 300 137 44 720 -

-32 320 144 47 860 -

Remarks 1 The gas consumption shall be that of the individual burners. 2 For the pot, a straight type specified in JIS S 2010 shall be used. 3 Dimensions of each part of the pot shall be in accordance with the

specifications of JIS S 2010, and the permissible deviations shall be 3 % for the opening diameter, ~1g% for the depth and 10 %for the roundness (curvature radius) of the pot bottom.

4 The requirement for the mass shall be applied only to the pot for thermal efficiency test, and the permissible deviation shall be 5 %, in state of removing the handle, knob and the like, of the value given in Table 3.

6. 7 Combustion test

6.7.1 Usual service condition Tests on the usual service condition shall, ex-cluding those specified in each provision, be as follows:

16 s 2147: 1998

a) Test condition The test conditions shall be according to a) of 6.6. For the testing cylinder, the cylinder specified in 6.1 b) but filled with-gas of 50% mass of rated filling amount shall be used.

b) Conditions of appliance The installation and working conditions of appli-ance, and states of the appliance valve and the like shall be as follows :

1) Installation condition of appliance The appliance shall be installed on a horizontal wooden base.

2) Working condition of appliance Set the appliance in the usual service condition specified in 6.6, pour water into the pot so that the water amount never lower, below the level of -f pot depth, during the test.

3) States of appliance valve and the like The states of the appliance valve and the like in those appliances used with adjusting the gas consuming amount ---( ~. by the appliance valve and other gas consumption adjusting devices (here-after referred to as "appliance valve and the like") shall be in the conditions specified in test methods of c).

c) Test method The test methods shall be as follows: The tests shall be carried out by each burner.

1) Fire transfer Those used with adjusting the gas amount shall be exam-ined only on the position of "Large" for consecutive 5 times.

1.1) After lighting up on an end port of the main burner, examine whether it transfers fire securely or not, and the elapsed time to transfer fire to the whole ports.

For the means of ignition, those to be ignited directly with an electrical ignition device shall be ignited with the device, those ignited with a light-ing torch or pilot burner, ignited with it, and otherwise, by using a match or induced flame. ~

1.2) To examine for explosive ignition.

1.3) For those equipped with a lighting torch or pilot burner, examine for relative difficulty of lighting up from it to an end port of the main burner.

2) Lifting Igniting the burner, examine visually from after 15 s.

3) Flicker out Igniting the burner, examine visually from after 15 s.

4) Flame uniformity Igniting the burner, examine visually after stabilizing of flames.

5) Backfire To examine visually until 30 min after igniting the burner.

6) Continuous noise Igniting the whole burners, examine the maximum continuous noise according to the following.

17 s 2147: 1998

The noises at 3 points given in Fig. 4 shall be measured, using a sound level meter, by the characteristic A of audibility correction circuit, according to JIS Z 8731, and under the following conditions.

6.1) Place microphones at such positions as that 1 m apart from approximate mid-point of the appliance periphery and not influenced by exhaust gas and the like.

6.2) The background noise while the appliance is not working should be at least 10 dB less than the appliance noise.

6.3) When the appliance is working, the noise in the neighborhood of the wall nearest to the appliance should be less at least 8 dB than the noises at the measuring positions shown in Fig. 4. Excepting the case in an anechoic room.

6.4) To take the maximum value of noises at the 3 points given in Fig. 4.

lm Measuring point

Gas appliance

Front face

lm

Measuring point

/m

Measuring point

Fig. 4 Noise measuring point

7) Extinction noise and requiring time Ignite the bumer and extinguish after 30 min to examine whether an explosive sound occurs and on the elapsed time by extinction.

For the extinguishing operation, close each appliance valve quickly by hand. Those equipped with an automatic extinguishing device shall be examined at the time of its automatically closing.

8) CO % Igniting the bumer and 15 min after, sampling combustion gases, along the pot outer periphery as uniformly as possible, for overall periphery line 3 mm apart from the pot side face at a level i- pot height from the pot upper edge as shown in Fig. 5, measure the CO and 0 2 concentrations in dry combustion gas respectively, and calculate by the following formula.

CO=CO. x 21 21-02a

Where the test gas components have been confirmed, it may be, measur-ing the CO and C02 concentrations respectively, calculated by the following formula.

18 s 2147: 1998

CO = CQ X C02max . C02a -C02t

where, CO : theoretical CO concentration in dry combustion gas (vol %)

Pot

COa : measured value of CO concentration in dry combus-tion gas ( vol %)

02a : measured value of 0 2 concentration in dry combus-tion gas ( vol %)

C02max : theoretical C02 concentration in dry combustion gas (vol %)

C02a : measured value of C02 concentration in dry combus-tion gas (vol %)

C02t : measured value of C02 concentration in gas inlet atmosphere (dry condition) (vol %)

Approx. 3 mm'

1/3 of pot height

Sampling position

Pot

Sampling position

Fig. 5 Combustion gas sampling position

9) Soot generation To examine visually until of 30 min after igniting the burner.

10) Yellow flame contact After igniting the burner, examine on the elec-trode part of the ignition device by visual observation.

6.7.2 Condition of using oversize pot For the test in condition of using over-size pot, using a pot of which the opening diameter is larger by 60 mm than of the testing pot given in Table 3, ignite the burner to burn with fully opening the appliance valve, and examine whether there are any flicker, fogginess and irritating odor in the combustion gas by visual observation and the like.

6.8 Temperature rise test

6.8.1 Temperature rise at usual working The test for temperature rise at usual working shall be as follows :

a) Testing cylinder The testing cylinder shall be the same as 6.1 b).

b) Condition of appliance The condition of appliance shall be as follows:

19 s 2147:1998

1) Appliance installation condition Install the appliance on a tempera-ture measuring board as shown in Attached Fig. 2 .at the same relative position as the installation condition specified in 6.7.1 b) 1).

Where there is any instruction for setting in case of using a heat insulat-ing plate or others having a similar function (hereafter referred to as "heat insulating plate and the like"), carry out also in the state with the heat insulating plate and the like under the specified conditions.

2) Appliance working condition Make the state of appliance the working condition in which the consumed gas amount is maximum, and that of the cooker bumers which are usable simultaneously the working condition specified in 6.7.1 b) 2) respectively.

c) Temperature measuring time The temperature shall be measured until the time when the temperature of the measuring part remained unchanged even with the lapse of time. It shall be limited to a maximum of 1 h from igniting the bumer.

6.8.2 Temperature rise at using oversize pot The test of temperature rise at using oversize pot shall be carried out, using a testing pot of opening diameter larger by 60 mm than that given in Table 3, by a method similar to 6.8.1.

6.9 Electrical ignition performance test

6.9.1 Test condition The test conditions shall be similar to 6.6 a) and, for those using dry cell, the voltage shall be 70 % of the nominal voltage (the minimum voltage to ignite, if it becomes to be incapable of ignition).

6.9.2 Test method Performing the igniting operation repeatedly for 10 times by a means indicated in the instructions and the like or that given in the following, examine the number of ignitions and for presence of explosive ignition.

a) Carry out several times of preliminary examinations beforehand.

b) Make the ignition device and its periphery in a condition of at near the room temperature in each igniting operation.

c) The meaning of one time and the time of each igniting operation shall generally be, according to ignition source generating system, as follows :

1) For those of which the ignition source is generated once by one operation such as piezoelectric ignition system of single firing type, regard the one operation as once.

The time of one igniting operation shall be about 0.5 s to 1 s.

2) For those of which the ignition source is generated consecutively by a rotat-ing operation such as piezoelectric ignition system of rotating consecutive type, regard the one revolution as once.

The time of one igniting operation shall be the same as 1).

20 s 2147: 1998

3) For those of which the ignition source is generated continuously by one operation such as dry cell discharge or heater ignition system, regard that held at such a position as the "Ignition" for 2 s as once.

6.10 Cylinder inner pressure test For the cylinder inner pressure test, mea-sure the pressure inside the cylinder, by using a pressure gauge, during the tests of 6.8.1 and 6.8.2, to examine the respective maximum pressures.

6.11 Working test of pressure sensitive safety device The working test of pressure sensitive safety devices shall be as follows:

a) With the appliance mounted on a test appliance as shown in Attached Fig. 1, increasing the applied pressure at a rate of 5 kPals, examine the safety device functioning pressure.

b) For those constructed to close the gas-passage, after the gas-passage is closed, examine whether it does not open automatically while the pressure in the high ( ~ pressure part is changed gradually.

6.12 Repeated working test The repeated working test of appliance each part shall be as follows :

a) Appliance valve For the appliance valve, after repeating the open/close op-erations at a rate of 5 times to 20 times per min for the number of times given in Table 1, examine on the following items.

1) Gastightness of gas-passage The gastightness of gas-passage shall be according to 6.4.

2) Hindrance to use For the hindrance to use, examine the relative diffi-culty of opening/closing and for fractures by visual observation, operation and the like.

b) Electrical ignition device For the electrical ignition device, after repeating the igniting operation at a rate of 5 times to 20 times per min for the number of times given in Table 1, to examine on the following items.

1) Electrical ignition performance For the electrical ignition performance, the provision of 6.9 applies.

2) Hindrance to use To examine whether there is any hindrance to use by visual observation, operation and the like.

c) Appliance governor For the appliance governor, taking such operations as that apply an air pressure of 0.2 MPa on the appliance governor for 2 s to 3 s and then stop 2 s to 3 s as once, after repeating it for the number of times given in Table 1, to examine on the following items.

Furthermore, carry out the similar test at the same air pressure that acti-vates the pressure sensitive safety device.

1) Gastightness of gas-passage The gastightness of gas-passage shall be according to 6.4.

21 s 2147: 1998

2) Change of regulated pressure For the change of regulated pressure, using a cylinder as specified in 6.6 a) 1) and flowing the gas, measure the regulated pressure (outlet side) before and after the test, and calculate the regulated pressure change rate from the following formula :

Ll P = p - Po X 100 Po

where, LlP: P:

Po :

regulated pressure change rate (%) regulated pressure after test (Pa) regulated pressure before test (Pa)

d) Pressure sensitive safety device Setting the air pressure at 0.6 MPa and 0 MPa, after each repeating the operation of opening/closing the gas-passage or attaching/detaching the cylinder at a rate of 5 times/min or more up to and including 20 times/min for the number of times given in Table 1, examine on the following items.

1) Gastightness of gas-passage The gastightness of gas-passage shall be according to 6.4.

2) Working performance The working performance shall be according to 6.11.

e) Cylinder to appliance junction For the cylinder to appliance junction, after repeating the operation of attaching/detaching the cylinder by a means indi-cated by the manufacturer (in the instructions and the like) at a rate of 5 times or more up to and including 10 times per minute for the number of times given in Table 1, examine the gastightness of gas-passage by 6.4.

6.13 Practical performance of appliance The test for the practical perfor-mance of appliance shall be as follows :

a) Test condition For the testing cylinder, that specified in 6.6 a) 1) shall be used.

b) Appliance condition Connecting the appliance to a test apparatus for the gas consumption test of 6.6, put a test pot given in Table 3 filled with water of an amount indicated in the same Table onto the cooker burner, fully open the appli-ance valve and the like, and adjust the burner, if it is to be used with adjusting the air amount, to the sufficient combustion state.

c) Test method For the test method, cover the test pot containing water with a test lid, ignite the burner, start mixing with the stirrer when the water tem-perature is raised by 45 ac above the initial temperature and by 50 ac stop the gas, further resume stirring and, taking the maximum temperature attained during the time as the final water temperature (t 2 ), measure the consumed gas amount (V) and other necessary values to calculate the thermal efficiency from the following formula.

22 s 2147: 1998

where, TJ : thermal efficiency (%) M : mass of water subjected to heating'(test) (kg) C : specific heat of water subjected to heating [kJ/(kg K)]

. . 1

tz : final temperature of heated water (C) tl : initial temperature of water subjected to heating (C) V : actual consumed gas amount (g) Q : total calorific value of consumed gas (kJ/g)

Remarks 1 Use such a test lid as fits the test pot, and that an etched-stem mercury-in glass thermometer is inserted into a hole drilled in the lid mid-point so the bulb part stays at the water's middle part without touching a stirrer attached to the led, as shown Fig. 6.

Lid for test

The etched-stem mercury-in-glass thermometer shall be that (_~ with a measuring range of 0 oc to 100 oc and the minimum scale of 0.5 C.

Thermometer

/Bulb part, at middle of water

Test pot

Stirrer (of stainless steel) thickness : 0.5 mm h : 114 of pot depth l : 112 of pot inner dia. supporting stem dia. : 2 mm

0 0 0

Cork _ _____!:,.. handle

Stainless steel stirrer

Fig. 6 Practical performance test apparatus

2 The initial temperature of water subjected to heating (test) shall be similar to the room temperature.

3 Test twice or more under the same conditions, and when the dif-ference between the two consecutive thermal efficiency values be-comes 5 % or less of the arithmetical mean, the mean value shall be taken as the thermal efficiency.

6.14 Heat resistance test of functional parts

6.14.1 Appliance valve With the specimen placed in a thermostat at the tem-perature corresponding to the heat resistance class given in Table 4, leave it as it is for 24 h, take it out to cool down, and examine on the following items after it has approximated to the room temperature.

a) Gastightness of gas-passage For the gastightness of gas-passage, examine for leakage in either state of "Open" and "Close" of the appliance valve, by the methods of 6.4.

23 s 2147: 1998

b) Hindrance to use For the hindrance to use, operating as usual, examine whether there is no hindrance to operation and it functions normally.

6.14.2 Ignition unit With the specimen placed in a thermostat at the tempera-ture corresponding to the heat resistance class given in Table 4, leave it as it is for 24 h, take it out to cool down, and examine whether there is any hindrance to the normal functions of the specimen after it has approximated to the room tempera-ture.

6.14.3 Appliance governor With the specimen placed in a thermostat at the temperature corresponding to the heat resistance class given in Table 4, leave it as it is for 24 h, take it out to cool down, and examine on the following items after it has approximated to the room temperature.

a) Gastightness of gas-passage For the gastightness of gas-passage, examine for leakage by the methods of 6.4.

b) Change of regulated pressure For the change of regulated pressure, mea-sure the regulated pressure (outlet side) values before and after test, and calcu-late the change rate of regulated pressure from the formula given in 6.12 c) to examine whether it is 8 %or less.

c) Hindrance to use For the hindrance to use, examin~ whether there is no hindrance to working operation and it functions normally without difficulty.

Table 4 Heat resistance class

Heat resistance class Temperature C

15 150

14 140

13 130

12 120

11 110

10 100

9 90

8 80

7 Inspection

7.1 Type inspection (4) The type inspection shall be performed on the items of clauses 3, 4 and 5 according to the test methods of clause 6 and on the items of clause 8 by visual observation and the like, and the results shall conform to the requirements of clauses 3, 4, 5 and 8.

Note (4 ) The type inspection means an inspection to judge whether the quality of products satisfies every quality requirement given in the des.ign.

24 s 2147: 1998

7.2 Product inspection (5 ) The product inspection shall be carried out by every product on the following items by the test methods of clause 6, visual observation and the like, and the results shall conform to the requirements of clause 3 and subclause 8.1. For the inspections, a rational sampling system may be used.

a) Gastightness of gas-passage

b) Condition of combustion Continuous noise and extinction noise may be omitted.

c) Electrical ignition performance

d) Product marking Note (5) The product inspection means an inspection to judge, on a delivery of

products made by the same design and processing as those which have passed type inspection, whether the products quality satisfies the requirements regarded as necessary. ( --------

8 Marking

8.1 Product marking For the product marking, appliances shall be marked with the following information at a conspicuous place by a means to be indelible.

a) Designation of the appliance type

b) Year and month of production or its abbreviation

c) Production number or lot number

d) Manufacturer's name or abbreviation

8.2 Instruction marking

8.2.1 Operation marking Those of which using operations such as ignition, ex-tinguishing or adjusting will not be found easily shall be marked with the operating methods briefly and clearly at a conspicuous place by a means to be indelible.

8.2.2 Precaution marking Appliances shall be marked with the following mat-ters at a suitable place.

a) Notice requesting users to follow the instruction manual

b) Matters about the name of cylinder to be used

c) Notice requesting users to confirm ignition, light up and extinction

d) Precaution on using

e) Matters about checking and cleaning

f) Matters about attaching and detaching cylinders

25 s 2147:1998

9 Instruction manual Each appliance shall be provided with a set of instruc-tion manual, which shall contain the following information.

a) Matters to be taken care at handling the appliance

1) Type of cylinder to be used

2) Precautions to using for different uses and application of auxiliaries

3) Notices for using place and position, and precaution against fire

4) Notices on use (confirmation of ignition and extinction, caution for ventila-tion during use, and others)

5) How to attach and detach cylinders

6) Matters about disposal of used cylinder

b) How to set the appliance (if assembly is required, how to do it and what to take care)

c) How to use the appliance

1) Methods of ignition, extinguishing heating power (gas amount) adjustment, air control and the like

2) Others

d) Matters about daily checking and maintenance (cleaning method and caution for the parts required to be cleaned up)

e) How to discriminate and treat a simple failure and abnormality

0 Matters about the place to be contacted for failure occurrence, repair request, etc.

g) Matters about the appliance specifications

Attached Table 1 Normative references

JIS B 1501 Steel balls for ball bearings JIS B 2401 0-rings JIS B 7411 Solid-stem general purpose liquid-in-glass thermometers JIS B 7502 Micrometer callipers JIS B 7507 Vernier, dial and digital callipers JIS B 7516 Metal rules JIS B 7601 Trip balances

26 s 2147: 1998

Attached Table 1 Normative references (continued)

JIS C 1102-2 Direct acting indicating analogue electrical measur-ing instruments and their accessories Part 2 : Special requirements for ammeters and voltmeters

JIS C 1502 Sound level meters JIS C 1601 Indicating thermoelectric thermometers JIS C 1602 Thermocouples JIS C 1802 Electronic self-balancing recorders for industrial use JIS C 3101 Hard-drawn copper wires for electrical purposes JIS C 3102 Annealed copper wires for electrical purposes JIS G 3314 Hot-dip aluminium-coated steel sheets and coils JIS G 3446 Stainless steel pipes for machine and structural purposes JIS G 3459 Stainless steel pipes JIS G 4303 Stainless steel bars JIS G 4304 Hot rolled stainless steel plates, sheets and strip JIS G 4305 Cold rolled stainless steel plates, sheets and strip JIS G 4308 Stainless steel wire rods JIS G 4313 Cold rolled stainless steel strip for springs JIS G 4314 Stainless steel wires for springs JIS G 5501 Grey iron castings JIS H 3100 Copper and copper alloy sheets, plates and strips JIS H 3250 Copper and copper alloy rods and bars JIS H 3300 Copper and copper alloy seamless pipes and tubes JIS H 3320 Copper and copper alloy welded pipes and tubes JIS H 4000 Aluminium and aluminium alloy sheets and plates, strip

and coiled sheets JIS H 4040 Aluminium and aluminium alloy rods, bars and wires JIS H 4080 Aluminium and aluminium alloy seamless pipes and

tubes JIS H 4090 Aluminium and aluminium alloy welded pipes and tubes JIS H 4100 Aluminium and aluminium alloy extruded shapes JIS H 5120 Copper and copper alloy castings JIS H 5121 Copper alloy continuous castings JIS H 5301 Zinc alloy die castings JIS H 5302 Aluminium alloys die castings JIS K 0151 Non-dispersive infrared gas analyzer JIS K 2301 Fuel gases and natural gas -Methods for chemical analy-

sis and testing

1-

' ----.

Attached Table 1 Normative references (concluded)

27 s 2147: 1998

JIS M 7605 Detector tube type carbon monoxide measuring instru-ments (Colour-intensity)

JIS S 2010 Aluminium sheet wares JIS S 2148 Gas cylinders for portable gas cooker JIS Z 1522 Pressure sensitive adhesive cellophane tapes JIS Z 2371 Methods of neutral salt spray testing JIS Z 8703 Standard atmospheric conditions for testing JIS Z 8731 Methods of measurement and description of A-weighted

sound pressure level

Attached Table 2 Materials with corrosion resistance

Material JIS No.

Castings JIS H 5120 JIS H 5121

Die castings JIS H 5301 JIS H 5302

Stainless steels JIS G 3446 JIS G 3459 JIS G 4303 JIS G 4304 JIS G 4305 JIS G 4308 JIS G 4313 JIS G 4314

Coated steels JIS G 3314

Aluminium and aluminium alloys JIS H 4000 JIS H 4040 JIS H 4080 JIS H 4090 JIS H 4100

Copper and copper alloys JIS C 3101 JIS C 3102 JIS H 3100 JIS H 3250 JIS H 3300 JIS H 3320

Remarks : Those in JIS G 5501 of having a thickness not less than 2 mm are considered as a material with corro-sion resistance.

28 s 2147: 1998

Attached Table 3 Test device

Use (Test item) Name of Type and specification Fine Remarks test device (minimum)

Type Scale (measuring) scale range

Measurement of Ethed-stem 0 octo 50 oc 0.5 oc JIS B 7411 air and water mercury-in-glass 0 octo 100 oc temperature thermometer

Measurement of Hygrometer Assmann's humidity hygrometer

Measurement of at- Barometer Fortin's 90 kPa to 110 kPa 10 Pa mospheric pressure barometer

Measurement of gas Water column 0 kPa to 6 kPa 10 Pa pressure meter

Measurement of gas Pressure gauge Bourden tube 0 MPa to 2 MPa 50 kPa and air pressure pressure gauge

Measurement of Stopwatch 30 min type 0.2 s elapsed time

Watch 1 min

Measurement of gas Balance Platform scale Ogto500g 1 g amount

Measurement of noise Sound level meter Common type 30 dB to 120 dB JIS c 1502

Analysis of gas Gas analyzer Gas chromato- JIS K 2301 graph

Measurement of CO CO concentration Infrared gas (0 to 0.2)% JIS K 0151 concentration measuring device analyzer JIS M 7605 (apparatus) Colorimetric (0.01 to 0.1) %

CO detector

Measurement of C02 C02 concentration Infrared gas (0 to 15)% JIS K 0151 concentration measuring device analyzer JIS K 2301 (apparatus)

Measurement of Oxygen concentra- Indicating (21 to 15)% 0.1% JIS K 2301 oxygen concentration tion measuring oxygen

device (apparatus) densitometer

Measurement of Micrometer Micrometer 0 mmto 11100 mm JIS B 7502 dimensions callipers callipers 25 (or 50) mm

Vernier, dial or JIS B 7507 digital callipers

Scale Ommto1000mm 1 mm JIS B 7516

Measurement of Thermoelectrical 0 octo 150 oc 2 oc JIS C 1601 surface temperature thermometer JIS c 1602

Thermocouple JIS C 1802

Measurement of DC voltmeter 0Vto5V Grade 1.0 JIS C 1102-2 voltage

Regulation of test Voltage regulator DC voltage 0Vto5V 0.1 v voltage or variable registor regulator

Measurement of mass Balance Trip balance 0 g to 100 g 1 mg JIS B 7601

Remarks : Test devices shown in Attached Table 3 indicate the reference of per-formance, and those at least equivalent there to may be used.

Use

Incline falling-down test

Vibration test

Drop test

Load test

Heat resistance test

Corrosion resistance test

Gas resistance test

Steel ball impact test

Incombustibility test for heat insulating materials

Gastightness test of gas-passage

Pressure resistance test of gas-passage

Gas consumption test

Combustion test

Continuous noise test

Temperature rise test

Cylinder inner pressure test

Performance test for pressure sensitive safety device

Repeated working test

Practical performance test of appliance

Attached Table 4 Test apparatus

Name of test apparatus Type

Incline falling-down Incline falling-down test apparatus tester, level

Vibration test Vibration tester apparatus

Drop test apparatus Drop tester

Weight

Heat resistance test Gas or electric furnace apparatus Temperature self recorder

Corrosion resistance Salt spray test test apparatus apparatus

Gas resistance test Gas pressure regulator apparatus for sealant Thermostatic water tank (Fig. 2) U-tube with glass active plug

Steel ball impact test Steel ball for ball bearings apparatus

Wooden board

Incombustibility test Bunsen burner, ring apparatus (Fig. 3) stand, wire net

Gas-passage gastight- Pressure regulator ness test apparatus Pressure gauge (Attached Fig. 1)

Gas-passage pressure Pressure regulator test apparatus Pressure gauge (Attached Fig. 1)

Gas consumption Platform scale measuring apparatus

Combustion test Wooden board, testing pot apparatus (Table 3)

Infrared gas analyzor

Noise measuring Sound level meter apparatus (JIS C 1502)

Surface temperature Temperature measuring board measuring apparatus Thermocouple of wooden base and Thermoelectrical thermometer walls (Attached Fig. 2)

Cylinder inner pres- Bourdon tube pressure gauge sure test apparatus

Performance test Pressure regulator apparatus (Attached Pressure gauge Fig. 1)

Repeated working test apparatus

Practical performance Testing pot, testing lid test apparatus (Fig. 6) Stirrer

Thermometer

29 s 2147: 1998

Remarks

(0 to 20) degrees

600 cpm frequency 5 mm total amplitude

30 em drop height

5 kg (260 mm diameter)

500 oc min.

Rating number chart of JIS Z 2371

0 kPa to 5 kPa

20 oc 1 C, 4 oc 1 oc

36.51 mm dia. (200 g mass) JIS B 1501 Oak

11 mm burner bore 4> 0.8 wire, 6, 4 mm mesh

0 MPa to 2 MPa

0 MPa to 2 MPa

0 g to 500 g

co: (0 to 0.2)%

C02 : (0 to 15)%

30 dB to 120 dB

0 C to 150 oc

0 MPa to 2 MPa

0 MPa to 2 MPa

0 octo 100 oc

~---------- ~---~

30 s 2147: 1998

Pressure source

Air filter

Pressure regulator

Inlet cock

Pressure gauge

1---r---+--r........,"--r""+-1~ Appli-1 1 ance I I L----~

Flow regulator

Exhaust cock

Attached Fig. 1 Pressure resistance gastightness. performance test apparatus

s s s 8

0

lr-

Dish

Dish Burner

Cylinder cover

Body

Leg Air adjuster lever

Informative Fig. 1 Example of single cooker

31. s 2147: 1998

Cylinder setting lever

:~~~jl~~~!l~~ii~~~~~~~~~~~~~~~~::~~ Trivet Cylinder cover Observation aperture

. Fixing spring hole

Identification plate

Color indication

Appliance valve knob

Cylinder setting lever

Informative Fig. 2 Example of double cookers

Errata for JIS (English edition) are printed in Standardization Journal, published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in Monthl_v Information.

Errata will be provided upon request, please contact : Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462

2004-01-21 Printed by JSA