Is 10090 Specification for Numericals

8/12/2019 Is 10090 Specification for Numericals

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( Reaffirmed 2006 )


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ndianSPECIFICATION

1s:1oo9o 1982StandardFOR NUMERICALS

Builders Hardware Sectional Committee, l3DC 15Chairman

SHM YUSUF MOWJEE RepresentingM. Cl. Mowjee Company Private Ltd, Calcutta;and Builders Hardware I ndustries Associationof India, CalcuttaMembers

SHRI SAHIB SINOH ( Alkrnaic toShri Yusuf Mowjee ),SHRI D. R. BAHLSWRI S. G. MAHAJ AN ( Alternate ) Engineer-in-Chiefs Branch, Army HeadquartersSHRI D. S. CHAUHAN Regional Testing Centre ( Northern ) ( Ministry ofSHRI A. K. DUGGAL ( Altxrnate )CONTROLLEROF STORES,EASTERNRAILWAY

SHRI S. K. DUTY-ASHRI K. H. GANDHISHRI VIJ AY KUMAR ( Alternate )SHRI A. GHOSHSHRI A. K . SARKAR ( Alternate )SHRI V. K. J AINSHRI RAKESHKAMBOJ

Industry)Ministry of RailwaysHousing and Urban Development Corporation Ltd,New DelhiMinistry of Defence ( DGI )National Test House, CalcuttaP. P. Products, Al igarh,J ayna Trading Corporation, Delhi

SHRI NAWAL KAMBOJ Alternate 1SHRI S. C. KAPOOR Directorate General of Supplies Disposals, NewDelhiSHRI I . C. KHANNA Alternate )SHRI RAM F. KEWALRAMANI Indian Institute of Architects, BombayCOL P. C. KHANNA Argent I ndustries, New DelhiMAJ -GEN K. D. CHADHA ( Alternate )SHRI M. G. MENON Indian Aluminium Co Ltd, Calcutta

SHRI D. S. NARAYAN ( Alkrnate )SHRI AJ OYENDU AUL Gobindo Sheet Metal Works Foundry, CakuttaSHRI AMITABHPAUL ( Alternate )DR A. V. R. RAO National Buildings Organization, New DelhiSHRI 0. P. RATRA ( Alternate )SHRI T. Cl. SOLANKI Sen-Harvic, BombaySHRI N. K . RAGHOOWANSHI Alternate )SUPERINTENDINGURVEYOROF Central Public Works Department, New DelhiWORKS I ( DAZ )SURVEYOROF WORKS ( IV ) ( Alternate ) Continued on page 2 )

0 Copyright 1982INDIAN STANDARDS INSTITUTIONThis publication is protected under the Indian Copyright Act XIV of 1957 ) and

reproduction in whole or in part by any means except with written permission of thenublisher shall be deemed to be an infringement of copyright under the said Act.


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Cortintud.fromage 1 )Members

SHRI M. S. VEmSHRI R. S. VEDI ( Alternate )SHRI G. RAYAN,Director ( Civ Engg )

RepresentingEverite Sales Corporation, New DelhiDirector General, IS1 ( Ex-oficio Member)

SecretarySHRI S. SEN~UPTAAssistant Director ( Civ Engg ), ISI

Door and Window Fittings Subcommittee, BDC 15 :Convener

SHR~ YVSUF MOWJ EE M. C. Mowjee Company Private Ltd, CalcuttaMembers

SHRI SAHIB SINGH ( Alternate toShri Yusuf Mowjee )SHRI D. S. CHAUHAN Regional Testing Centre ( Northern ) Ministry ofSHRI A. K. DUGGAL ( Alternate ) IndustrySHRI A~WANTSIN~H Eastern Commercial Industrial Enterprises PvtLtd, VisakhapatnamSHRI RAVI MEHRA ( Alternate )

SHRI RAKESHKAMBOJ J ayna Trading Corporation, DelhiSHRI NAWAL K AMBOJ ( Alternate )SHRI I . C. K HANNA Directorate General of Supplies Disposals, Ministryof Supply, New DelhiCOL P. C. KHANNA Argent Industries, New DelhiMAJ -GEN K. D. CHADHA ( Alternate )SHRI AJ OYENDU AUL Gobindo Sheet Metal Works Foundry, CalcuttaSHRI AMITABHPAUL ( Alternate )SHRI V. K . PUHJ Ministry of Railways, New DelhiSHRI H. K. RAKHRA Engineer-in-Chiefs Branch, Army HeadquartersSHRI B. D. KSHIRSAGAR Alternate ) -SURVEYOROF WORKS ( DAZ ) Central Public Works Department, New DelhiSHRI M. S. VEDI Everite Sales Corporation, New DelhiSHRI R. S. VEDI ( Altermate )

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IS:10090-1982ndian Standard

SPECIFICATION FOR NUMERICALS

0. FOREWORD0.1 This Indian Standard was adopted by the Indian Standards Institutionon 29 January 1982, after the draft finalized by the Builders HardwareSectional Committee had been approved by the Civil Engineering DivisionCouncil.0.2 Numericals or figures made out of brass, bronze or aluminium arebeing extensively used in hotels, office complexes, hospitals and otherpublic buildings for marking rooms, blocks, etc. This standard has beenprepared with a view to laying down the essential requirements for themanufacture of such numericals.0s While issuing this standard, the Sectional Committee took note ofthe acute scarcity of materials like brass and bronze in the country andthe need for conserving the use of the same in national interest. However,in view of the demand for numericals made out of these materials in theoverseas markets, they have been included specifically to meet the require-ments of export trade. For all indigenous uses, it is recommended thatnumericals made out of these materials should not be used.0.4 This standard contains clauses 3.1, 4.1.2 and 5.1 which permit thepurchaser to use his option for selection t o suit his requirements.0.5 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated, expressingthe result of a test or analysis, shall be rounded off in accordance withIS : 2-1960*. The number of significant places retained in the rounded ofIvalue should be the same as that of the specified values in this standard.

1. SCOPE1.1 This standard specifies the requirements regarding materials, dimen-sions, manufacture and finish of numericals.

*Rules for rounding off numerical values ( revi sed .3


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ISr1omo-19822. MATERIALS2.1 The materials used for the manufacture of numericals shall complywith the requirements given in Table 1.

TABLE 1 REQUIBEMENTS FOR MATERIALS FOR NUMERICALSchwe 2.1 )

SL No. MATERIALS SUIT BLE GR DEIN INDIANSTANDARDS(1) (2) (3)

i) Cast Brass Grade 3 of IS : 292-1961*ii) Cast Bronze Grade 3 of IS : 305-1961t orGrade 4 of IS : 306-1968 or .Grade 3 of IS : 28-19759

iii) Cast Aluminium Designation 5230 or 4600 of IS : 617-197511*Specification for brass ingots and castings ( r evi sed .TSpecification for aluminium bronze ingots and castings ( r evi scd .Specification for tin bronze ingots and castings ( second eaision .BSpecification for phosphor bronze ingots and castings ( thi rd evision .JJSpecification for aluminium and aluminium alloy ingots and castings for generalengineering purposes ( second evi sion 1.

3. DESIGN AND SHAPE3.1 The design and shape of numericals shall be as agreed upon betweenthe manufacturer and the purchaser.4. SIZE AND DIMENSIONS4.1 The numericals shall be of 25, 50, 75, 100, 150 and 300 mm size.

4.1.1 The size shall be designated by the overall height of the numericals.4.1.2 The thickness of the numericals shall not be less than 2 mm, andthe width shall be as agreed upon between the purchaser and the manu-facturer.

5. MANUFACTURE5.1 The numericals shall be made of brass, bronze or aluminium as requiredby the purchaser. They shall be manufactured in one piece and shall befree from all defects. Provision of projecting lugs or pins at the back of thenumericals shall be made for fixing. Alternatively, a minimum of twonumbers of clean and countersunk screw holes shall be provided to suitcountersunk wood screws No. 4 see IS : 6760-1972 ). All sharp edgesand corners shall be removed. Special lugs to enable the numericals toproject from the walls or doors shall be made if required by the purchaser.

*Specification for slotted countersunk head wood screws.4


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IS : 10090 - 19826. FINISH6.1 Brass and bronze numericals shall be finished smooth, and shall havebright or satin finish, or they shall be plated. They shall be suitably protectedfrom discoloration. Aluminium numericals shall be anodized and thequality of anodized finish shall not be less than Grade AC 10 of IS : 1868-1968*.7. MARKING7.1 Each numerical shall be legibly and indelibly marked with the nameofthe manufacturer or his trade mark, ifany.

7.1.1 The numericals may also be marked with the IS1 CertificationMark.

NOTE The use of the IS1 Certification Mark is governed by the provisionsof the Indian Standards Institution ( Certification Marks ) Act and the Rulesand Regulations made thereunder. The IS1 Mark on products covered by anIndian Standard conveys the assurance that they have been produced to complywith the requirements of that standard under a well-defined system of inspection,testing and quality control which is devised and supervised by IS1 and operatedby the producer. IS1 marked products are also continuously checked by IS1for conformity to that standard as a further safeguard. Details of conditionsunder which a licence for the use of the IS1 Certification Mark may be grantedto manufacturers or processors, may be obtained from the Indian StandardsInstitution.

8. PACKING8.1 Numericals shall be individually wrapped with polythene paper ortissue paper and, shall be packed in multiples in cardboard boxes.8.2 Each package shall bear the following information:

a) Size,b) Quantity, andc) Name of the manufacturer or his trade mark, if any.9. SCALE OF SAMPLING AND CRITERIA FOR CONFORMITY9.1 Lot-In any consignment all the numericals of the same shape,design, size and manufactured from the same material at the same timeshall be grouped together to constitute a lot.9.2 Sample Size - The number of numericals to be selected from a lotshall depend on the size of the lot and shall be in accordance with co1 1and 2 of Table 2.

*Specification for anodic coatings on aluminium (Jirrt rcv i r ion .


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IS : 10090 198292.1 These numericals shall be selected at random from at least 10 percent of the packages subject to a minimum of three, equal number ofnumericals being selected from each such package.TABLE 2 SCALE OF SAMPL ING AND CRITERION FOR CONFORMITY

( Clauses 9.2 and 9.4hT SIZE SAMPLE SIZE PERMI SSIBLENUMBER OF DEFECTIVES

(1) (2) (3)up to 150 5 01.51 to 300 20 1301 to 500 32 2501 to 1000 50 31001 and above 80 5

9.3 Tests9.3.1 All the numericals selected as in 9.2 shall be checked for dimensionalrequirements see 4 ), defects in manufacture see 5 ) and finish see 6 ).

Any numerical which fails to satisfy any one or more of these requirementsshall be considered as a defective numerical.9.4 Criterion for Conformity

9.4.1 A lot shall be considered as conforming to the requirements ofthis standard, if the number of defective numericals among thosetested does not exceed the corresponding number given in Co1 3 of Table 2.

Is 10090 Specification for Numericals

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