BS 957-2008
Transcript of BS 957-2008
-
7/25/2019 BS 957-2008
1/11
NO CO P YI NG WJTH OUT BSI PER AllSSJO N E X CEPTA S P E R MITl'ED
B Y
COPY UG H T L A W
British S tandards
CS l
7 .
040.;JO
f f
-
7/25/2019 BS 957-2008
2/11
Te
xt a:ffected
md.
no
. D
ate
Amendm
ents since publication
Publicati
on history
llS 7
(
in
dt
1941 (renumbe
re das
DS 9
57- 1
0
69
)
llS
957-2
mili.)
oe p
ublshed
1 96
9
D S 957
{in
clt aud metrlc)
e d i r . i . ( > t l )
publlshed 30 Sep
ember 2008
11te follow ng
DS
I references relate O lll w
c
rk ou
thts
s t A . -td
M
l:
Cemmluee TDW/4
rce
oon
t" K u
t08/30178000
e nst
o
Publ
isbin
g a.nd c
opyrigbt information
1'he BSI t. .
" \ > t ) ) '
rig
hLnou
ce displa yed ths doeumeru " " l1e
1
llte
doeumera was l a . ; ; c .
tssue
d,
BS 957:2008
-
7/25/2019 BS 957-2008
3/11
of pages
'Ths document oomprses
cover
, an nsde
cov
er,
p
ages i
u
, pages an m
sid
e
ba
ck cover and
b
ack
Ann
exes
Anne
x
A
(nforma
t fve
) Recommended
co
m
bnaton
s
of
blad
es
List of
ta
bles
Table metric units
1
Tab
le 2
-
Hardness test
-
inch unns
1
Table
T
ol
erances on
thckness
of blades- metri
c
units
Table
4 Tolerances on thckness of
blades
- inch units
Table A.I - Combination ofbL,des-
un
its
Tab
le A.2 -
Com
bnaton
o
f
bla
dcs
c-In
ch
Sco
p
e
1
2 refere
n
ces
1
s
General
1
4 Mazerial
ofblades 1
5
Dmensons of blades
6 Finish
7
8
Sheath
s
9
1 Protection aganst climatic co
n
ditio
n
s
BS 957:2008
-
7/25/2019 BS 957-2008
4/11
Contractual and
l
egal
c
onsiderations
'Th
s purport n
cl
ude provsions
co
n
traer
,
respo
nsble
ts
co
rre
ct
Compliance
a
Brltlsh Standard
cannot confcr
from l
e
gal o
bligatio
ns.
lnfonnation about this
doeu:ment
This B
rtsh St
an
clarcl
has been r
evsed to
hring
it
up to date
.
Pr
e
s
enta
ti
onal
con
ve
ntions
The
of
t
his are pr
ese
nted romn (
.c
.
upright)
IL \ requrements inse
nten
ce
s
a.uxi . l i ru)v e r b is
"
s
hall" .
Cmnmcntary, and g m u J> fll
> i f
< r
rm
at
nc is
smaer f : J / T K
,
and
does
>w t
S
upe
rsession
'Th
s
Brtsh
St
an
clarcl
sup
ers
edes B
S
957
-1 :1
94
1
and B
S
957-2
:
1969
,
w
bich ar
e
wthdrawn,
Publislrlng
lnformatio
n
This
Br
tsh 1''tanclarcl s
pu
blishcd BSJand carne into effect
on Septe
m
ber
2008.
ltwasprcpared Co
mmittec
TDW
4,
T
echnolog rmduct
reae
as
ion
.A
list
of organzato
ns
r
ep
r
esented ths
obtan
ed request to ts
secretary
.
BS 957:2008
-
7/25/2019 BS 957-2008
5/11
C 2008 1
BS EN
1 0
6507
(98 N
apprux.
}
"' 0.005" 0 .
00
8
0
.
008
~plieda n g e
'fuble
2 Hardness test - lnch units
ll)
pr
t>x .)
5
(4g N ap
prux
.)
;:: 01 5 ~ 020
0
.
20
Ioed
kgf
Tuble1
Bardness test -
me
tr
c
units
g
tn1 () r , . " (tr
fl~it
n 1 lf> . i ;li.ttu:e1u/.
b
e for hardness in accordan
ce
with
BS
E N I
SO
C.507
as
shown in
'rab
ie
l
and
'
rabie 2.
4.1 The blades shall be made of good quality stee
and shall
hardened
and
tempered
to a
hardness o
f n
o
t l
ess
than
400 HV nor
more G O O HV J
.
purchaser shall state in enqury and order
th
e particular
combination of
blades
and
length
ofblades
re
q
ured,
r
? ( J U r d b t g
i f
.
'l'be fo llowing referenced documents
ar
e indispensable for the
applcaton of For refrences, the
app
les.
r
efer
en
c
es
,
referenced document (induding any amendments) appUes.
B S E N IS O 6
507
,
V
i.l c < m < tP.St
'l'
his standard is applcable to blades of thcknesses:
from 0.03 mm 1.00 mm inclusive (mctric unts); and
from 0
.
00
1 5
0
.
025 in inclus
i
ve
(
inch
unts).
'l'his British Standard speccs requremcnts for feeler gauges,
co
mprising
a seri
e
s of gaugng
blades
(blades) of
graded thcknesses
assemb
led in
a . p
ro
te
ctive sheath
or supp
lied
indi\idua Jy. These includ
e
dmensons in
unts.
BS 957
:
2008
-
7/25/2019 BS 957-2008
6/11
2
2008
'The blades,
t
hrough.ou
t
, sha1J be free from sharp edges.
Tbe blade
s
urfuces
and
edg
e
s shall free frorn
d
eformations
and
have
a sm
oo
th
finish.
mm
3
1 5
0 6
2
Blades up to 75 mm (3 long
sha1J
be
approximate
ly 12 mm
(
~
wid
e
at
the heel and may
be parallel or tapered
, as m a.v
o
rd
ered
by
the
Blades greater than 75 mm (3 shall be
tape
red for the outer part of
their le
ngth so
that the width at the
ti
p is approximately 6 mm
{
in)
.
l.tM
mo
r
e
liut.
Y
I
H ?
;itl
r
Tbe
other ends of th
c
bla
des shall
approxmate
ly sem-c
rcular
,
B lad
e lengths, measured
ovc
rall, shall
be
as follo
ws
.
4
.S
B
lades ofthicknes.ses less than O . mm and 0
.
006 shall
subi
ected to a
scrat
ch c
ompatiso
n
t
est where
by the
blade s
hall
p
laced on
a hard
,
polished
surface
and scratched w ftha
diamond tipped
or stcel stylus w
hich a
tip radius of
approximately
0
.
6
mm
{
0.
02
'The mark
produc
e
d
shall
then compared
" 1 ' 1 1 t h
o,
mark
p
roduced on a steel test
pi
ece
o
f
kn
own hardness
th
e
rang
e
4()()..450
H V . The
mark s
hall
mad
e
the
same
manner
and usng the same force
on bot
h
the
b
lade
and th
e
test
p
ece
.
B S 957:2008
-
7/25/2019 BS 957-2008
7/11
e
B S
J 200
8
3
Thc sheath shall
b
e legibly
p
ermancntly mar
ke
d to indicate
wheth
er
in tnch units
manufacturer
'
s
vendor'
s
name trade
9.2
Each blade
s
hall be legibly
and permanen
tJy marked
w ith it.
0
.
021 . n . ,
S~ J()up
t
a
0
.
026.fn
,
1 5 0.035 in.
T h
e 1
1 1
.clu.\'i
t
u
.
, , , ,
u1 rg l& :l . ." l A
e
to
O
.001 5 bt lm
Y
nnl>ltwl
. l. &
u
- r
u > I .
more
lJ
ut
n
l
wt>
bl1 Jiles.
.\) 1 n of the delicate
nature
the
that
t
h.is beincluded dupli
c
ate
seta
lO
and 1 5.
0
.015
0
.
010
0
.
003
0
.
004
0.005
0.006
0.002
Set 10 S..t
1
5
in
O .OOJ
5
0.001 6
0.002 0.002
0
.
0
0
2
5
0
.
003 0
.
003
0
.004 0.004
0.005 0.00
5
0.00
6
0.006
0
.
007
0.008
o o os
0.000
O .
OJO
0
.
010
0
.
012
0
.016 0.015
0.020 0.020
0.02
5
Table \.2 Comb
inati
o
n
o
f
blade
s - inch
nnit
s
Set7
6 C
B S1
200S
BS 957:2008
-
7/25/2019 BS 957-2008
11/11
Co
pyright
Copyrightsubsl'1S in aD 8SI publieation.. 881 also ho
i
ds the
co
pyright, in tho U K , ot'
t hc
o
f
th
c ln t .c :mat lo1 ta.1t : a n d a r d i za
t i o u b o d i e s
as
undcr the Copyright
, Dcslgns aruI
Patcnts
Act IH88 no cxtract may
be roprodue d
,
stor c d
in
a rct r i c vn l s y s t c m 1 o r tran ~mittcd n f o n n o r by
a
n y n\can.~ cloctl'onc
1
f r o n 1
B S
L
< l o e s
notprc
clu
d e
t .h c~u
, t .hc
c o U T S C
oftn1plcn~ n t i n g
sr.a
nd
a
rd,
of
n
cccssazy dctalls
such a
ll)'mbols,and sizc,
or gra
de desigrumon.-.
thcsc
t .o
b e u.sed thcn t b e
J)r l
o r
riltc
n p c m t l s s i o n
o
f BSI nn1 s t b e o b r . a i n c d
and
advicc can be obt.aincd tho
Co
pyriglt
t
& Ll
c
f