bs 887-2008

20
7/25/2019 BS 887-2008 http://slidepdf.com/reader/full/bs-887-2008 1/20 B ri t i s h S tandar ds --· -~· ai s i ng stan d ar ds wo r ldwide  

Upload: diego

Post on 27-Feb-2018

374 views

Category:

Documents


32 download

TRANSCRIPT

Page 1: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 1/20

B riti

sh

S

t

a

nd

ar

ds

--·

- ~ ·

aisi

ng

stan

dards

wor

ldwide

 

Page 2: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 2/20

Tex

t a

ffectedmd.

No

.

Ame

ndmen

ts is suéd since publication

Publkation h i

story

First published February 1 940

F i

rst

M

ay

1

950

Second revisión Ju

ly

198

2

(p

r

esen

t

)

r

ev

i

s

i

o

n

T

he foltowng 85 1 reterences re

la

te to the wcrk on this

sta

ndard

:

Draft for

c

om

me

nt 0813 01n877

O

C

O

B S I 2

008

I

SBN

9

78

O

580

6

2

0

3

1

7

I

CS 17 .040.30

T

he 8

SI c

opy

ri

ght ocñce d

i

spt

a

yed

i

n this

doc

ument

i

n

dica

res

wn

enthe

docum

e

nt w

a

s

tes

t

l

ssu

ed

.

PubliS h lng and copy

r

ight lnfonnatlon

B R ITISH STA ND A R D

Page 3: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 3/20

0

85

2008

Sum.mary

front

pages to 1 1 , b. 'Jck

eeb

eem

11

g o1

test 12

C

1 4

B lb logr

aphy

Ust

fi

gures

and rheir nornendature

F1gu~ 2- O lstanm ofvernter ma ln se.ate

s

ca e

wlt

h

I

n centlmetres

I

n lnches

Ust lables

ot J

3 - lntema   m ea

su

reme-nts

4- L ay ou

t

1 1

11

J I

1

S

cope

1

2

5

Sc a l

es

Page 4: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 4/20

.O B

S

I 2008

Contra

ctua

l

and legal cons ide

r

atlons

putport a

ll

thé

cont

ra<t.

resp

onsi

befor

c

o

rrect

COmpllan«i wtth a BrttlshStandard cannotconf&r mmunlty from

l

éga

l

ob

ll

gations

P

resentation

a l c

onve

nt

ions

Th

e p

rovlsi

o

ns th

l

s sta

nd

ard are

presen

ted In

ro

man Il.e

.

uptight)

lts

e

xp

t

essed

ls "shal

l"

.

Com

m

tmtary,

exp/anation

t

fld

gerteral

in

fotmbtf

m;,terlal Is

p

t

eseflted /

() sm

a{l

er ft;,

llc

type

1 C)ftd

d

OM

no

t

 

onstlt

ute.,

n

o

ff'Mtive

element.

l

nfor

mat

i

on about thls document

T

hl

s

st

a

ndar

d

has.b

ee

n ré V lsed1

0

b

l 'i

ng u

p todat

e.

thé

D

I S

P

art

1 : Ca l ll

pe~:

Oeslgn

a

n

d me

b 'O loglc a l requl

reme

nts,aJrrentlybelng

b y

lnrtru

me

n

: s :

.

l

t I

nd

cd

es for

a s in

gl

e des

lgn

ofve

mle

r

s e

a e

whl

ch can hav

e graduat

lons

e

i

ther I

n met

rl

c or

I

n

I

m

peria

l

un

tts.

Supersess

i

on

Publishing

i

nfonnation

Thls

Br1 t ish

Standard I s

pu

b

llshéd

BS I an

de.ame

lnto e

ffe

ct on

Technfc alproducteallza t / 0 1 >  

be

seaetary.

B R I TISH S TANDARD

5887:

2008

Page 5: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 5/20

OSSl-2008

1

3.2

mea

suring

range

the-

3.1 deviation

read

l

ng

the

the

ar

é

SS 817 , Surfac.t

p

l

ates

- Req u l rem~nts

es

1

1 3 3 - 1

9,

P tJckagfngcode-: s ectl

o

n 19 :Use

o

f deslcc.antsJn

packaglng

es

2

7

95,

Sp

e

c /fie>tl

on

for dial testlnd

lcators (lover type)

for

l/near

Geometrlc

a

/

Product

Sp

e

c

lficatlons

(G

P

S)-

O

lmens om>ImHS

u

rlng

equlpment- 0gfgn

:J t >

d

metrologlca

l

charac.terlrUcsofmechan ati di;.,/ gauge s

2

-c

me

rna

l

an

d

fntema l conte

ct

stand

ard

0.

02

48 scale

se.a

le

t

o

0

.001

I

n .

diS pay,

1

NOTE ~

componen

ts of a

NOTE 2

Recommenáed min

im

u

m

C

.

NOTE

1

Attent

ion

í

sdrawn

t

othe

a

re

of mm marked on

me

íric

calli

per corresp

onds

to

a

000

1

in

cal/iper; whef Ns the actual

0

001 0.0254

Page 6: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 6/20

2 • O B

S

I 2008

C J )

The projertlonsofthe ja

ws

fro

m

the

édge

ofthe be

am

sha l l

be

The pro

j

ert

l

ons

J of the tw

o [aws

sha

ll be

equa

l

t

o

w

thl

n

0.

03 mm

o

r 0.00

1

I

n

, as s

hall p

roj

ect

to ns

J

1

(See F i

gur

e

1

.)

Jaw

s

4.

3

Beam

T h e

with

mm

O

t

o1 5 - 0

Oto6

O t

o 300

Oto 1

2

O to

600 Ot

o 1 8

O to

1 000

Ot

o24

O

to36

01048

4.2 Measuri

ng

ranges

M

a

t

e

r

i

al

The slld

e

r

and

beam sh

a

ll

o

f ce

rbc

n

stH-

 

o

r

s

talnl

es

s

steet ,

ran

g.é

1

0

ºCto 3

0

ºC .s h

a

ll

be

(

11.5±1.

0) x

H r

 rc

  Th

e

measu

reme

nt

not l

ess

than

550

H

V-fo

r

staínl

ess

steel.

F

lnls h

éd

c a ll lpe~ sn

eu

be

f

ree fto

m

lntema

l stresses.

85887:

200

8

Page 7: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 7/20

0

85

2008 • 3

8 G u

ldin g surte

ce

1

0

Pe

ces

f

or ntefn

al

measurement

1 1 Nom

i

nalcombined

w icttn o

f

th

e n

terna : measuñ

ng

ja

ws.eg

.

10 mm S.S)

2

3

4

F

ine

adjustmen

t

la

mp

5 Fine

adjustm

en

t

6

V em

l

er

s c a

t

e

to

9

1

s

. . .

6

\

8

t)

2

3

4

the

BRITISH

STANDARD

Page 8: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 8/20

85887:2008

B R I TISH

S T

AND

ARD

Ta

b l

•2 J

a) Metrlc

MeMul'i

n

g Projectlon J

M

ln

lm

u

m

M ax

lm

um

mm mm mm

O to1 S O

30

5

0

o 300

s o

70

o 600 S

S

7

5

Oto

1

000 60 80

b)

I

mperial

calllpors

Proj

ect

lon

J

M l

n

l

mum

M

a

x l

mum

In

I

n

ln

Oto

6

1 .2

5 2

Oto

12

2 3

Oto

1

8

2 3

Oto 2A 2.2

5 3

Oto 36 2 .5 3

Oto48 2 .

5

4.4.2

F

acesfor e

xte

rn

a

measurement

for

measuré-~nt

that o

f J

T

h

e faces shall

b

e flat to wlthín

0

.

00

5 mm 0.000 2 I

n

,

p

arallel

10 3 a

n

d s

h

atl

h

ave a s .u

rf

ace fi

n

lsh

0.1

4

or

0.

032 l

n

. The face of me fixed jaw (A)

sh

all

b

e

sq

ua

r

e to me

gu

l

d

lng

F

aces

for nterna

 

measureme

nt

st J

rf

ace f

n

l

sh

of

n

ot le-ss t

h

a

n

pm

o

r 1

6

). l l

n

ata c

u

t-off velue

0.

8

0

.032

4A.4 Allgnment of

ja

ws

Wh

en t

h

e

s

li

d

i

ng [ew

Is d

ampedto

t

he b

eam

I

n t

he

te

ro pos

hl

o

n

the

of

(A .

or0.002 In.

o

8512008

Page 9: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 9/20

CB S

I

2003

5

of

s. 1 G eneral

% 0.0005~

O

to6

O

to 1

2

O to

1

8

O to36

Com

b lnéd

s

lzé

Pa

r

aU el l

sm of

theiace<

0.000

5

J

aws

0

.

1 8

7

0

.

25

0.

25

0.

3

0.2

5 0

.

3

0.

25

0.

3

0.3 12

0.

5

0 .3 1 2 0.

5

(b

)

0.01

5

1

0

1

0

1

0

0

1

01

5

0

4

6

Oto600 6

Oto1000

6

the

fa<

es

M a x l mu:m

error l : nJ

nlm

um

comb

i

néd

wldth

4A.5

Slider

be

th• of

to

be

sea

fo

r

mee

so

reneot

not b

y

3

F ac

M for lnte.rn

a

l m e a . < S urements

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This requ

ír

e

ment doe

sno

t appl

y

to

callipersh

av ing sepe

re

t

e

s c a l

es and vernters

w

h

i

ch

penn

itd

i

rect r

ea

d

i

ng

of

Page 10: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 10/20

Fi t t ing of vernier scale main scale

Th

e

dl

stana?

f

rom F

aeé

th

e

G rad

ua

tion marks

0.00

7 o

.

o

s

0

.002

wth 8.3.

5.3

Position of the scales (see F i gure

1)

the

l' l

g

ht

  be

s ca e

whh 1 W O

ca

l l l

B wlth

faw

the

5.2

6 • C B S I 2 0 0 8

NOTE l

t

recomme

n

ded

that

fo

r

e ase

of read

 

ng

the

suriece

of

have a dull finish, and th<Jt the

be  

85887

:

2008

Page 11: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 11/20

0852 0 08 • 7

2 Ve

mi

er

3

S

lld

et

3

3

1

F i

9u

í

e - 2 Di

sta

nea

et

vern

let

ma

t

n sea e

85887

:

2008

Page 12: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 12/20

8

05 1 2 0 0

8

(b) Imperialsale

mle

r se.ale

l.ength Graduat

l

onsand

dM

s

lons n

u

m b ert ng

O

.

O

S O I n

s o

2.450 n

Stll sh•l l

V

E R

ln

terva ls

0.

001 In

(see 5)

o 1In234 s 67 etc,

10th H ne exten

d

ed

cach

O.

ln l l ne extended

o

1

0

20304 Q 5

0

V E R

0.02mm

n

umbeee

d

:

0

1

234567890

E.ac

h 5 mm l i

ne ext

end

ed

SO

01 cm234567otc.

1

l

ntervals

(see 4)

V E R

0.02mm

numbeeed

:

o 0. 1 0.

2

0.3 0.4 0.

5

0.60.7 0.8091.0

E.ac

h 5 mm l i

ne

extend

ed

SO

o mm 10 20 30

4

0 50

e

tc,

1

lntervals

(see

G

·

radoatlons

and

dh1 l s ons

(•) Mell1c <<al •

Vemt.

r

seale

aln seete

T•

bl

e

4 scalos

w

it

h the

t

.e. VE R 0.02 mm or

V E

R 0 .0 0 1

t

n.

vemie

f

btidéS

sh

all be marted "ln

s

l

d

e"

a

nd

"'

en.mid

e" resp

ectjvely.

ne

ve

(A)

I

n c

h

a

r

acters not

l

e-ss

tha

n

1

mm

hl

gh,

t

h

e name

o

r

5.5

scate

L e. elth« (

)mm.,,. c m , or (b) n.

NOTE

Figurlng

n

m

illimetres is pre

 

erre

d or O

mm 150

m

m

and O

to range

Page 13: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 13/20

08 5 1 2

0 0

8 • 9

NOTE This 0 370

s o

0

Jo 4 00

1

234561

89

123456

)

8

9 1

2345678

9 1

g

t . t r e 5 E

n

latg

é

d v f e w of f é r nl er

e a

le w h : h

m

a ln s e . a le éngr a véd In l n c hes

NOTE This 186

1 1 r r ¡

u n ¡ ¡  

m

¡   m ¡ ¡ m  

V

er 0

.

0

2 nn

0

1

2

34

6

1

8

90

O

1 a n 2

4

S

6

7

8

l 1 1

1 1 1 1 1 1 1

1

1 1 1

1 ¡

1 ¡ 1 1

l 1 1 , 1

¡ 1 1

1 , 1

1 1

1 1

¡

1

 

1

,

l 1 1

'

1 1

1 1

1 1 , ,,,

1 , 1 1 1 ,

1r

1 1 1 1

1 1 1 1 1

F 1 9 t .1re E n larg

e d v f e w

of

vern ie

r

sal

e

w

H :h

m

a l n

s e . a l

e e n g r a v - e d I n

centl

m e t r e s

NOTE is rea  ngof 1 86 mm 

m r

¡

m r

 

V

er 0

02am

o ~

u ~ u u u ~ ~ u u

O i r m 0

20 30

4 l O

60 7 < l 80

l 1 1 1 1 1 1 1 1 "'1 1   1 1 1 "'1 1 1 1 1 , 1 1 1 1 1 1 1 1 1 , , , 1

1 1 1 1

"'lml

r1rl

1 1 1 1 l 1 1 1 1 I

F 1

gu

~ E

n

latged

v f e w

of

v e r n l e r s c a

l

e w i t h m a fn

s e . a l

e e n g r a v é d I n m l l ll m e t e r s

85887 :

2008

Page 14: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 14/20

10 • C

B S l

2008

be

a

d

e:sslc ant ac c

ord

ln

g

to

1

1 3 3 - 1

9 o

r

by

bél

ng

wlt

h a

thi

n

NOTE Mea.sured length refe.rs to portion of Jength of the sea ebeing mea s u and is be con sed

the measvnng range ( s ize) of calliper.

Ta

b

l

e

s

Dev1adon

et

'"'d

ng

(a) Metric (b) Imperial

M earured le

ngth

"'adlng

of

l ' éad

l

ng

in In

üe tween O

a

hd 30 0

:z0.02

O

• 0.

001

Ove.r up to and

±0

.

04

Ove

r

u

p

t

o

0.

0 0 1

5

l

n

c l

u

d

lng600 lnc

ludl

ng 24

over

600

•0.0

6

O ve

r

24

.0.002

at

ttle- be.

B R I TISH

S T

ANDAR

D

5887:2008

Page 15: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 15/20

0852003 •

1

1

M

ea.surlng

range

O

to 6

0.625

X

0.125

Oto 1 2

0.75

0 0 .156

Oto 1 8 0.75

0 0 .1

56

O to

24

1 .000 0.1 87

Oto

3

6

1 .2

50

X

0.250

O to48

1 .

31

2

x0

.2 8

1

Tab

le

A

.1 B

M

lnlmum beam

c

r

ou. .séctk>m - lmpetia

l c a

ll l

p

e

rs

R é C . O

mmé

n

déd

mlnlm

u

m

cross-sectlon beam

m

 

Oto150

1 5x

3

O

to 300 20x4

O

to 600 2

5 5

Oto 1 000

30x6

c t f

T

ab

l

é

A.

A

M

ln l

m

um beam

cross~

a

ctk)M-

Métr

l<

c.alllpers

Page 16: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 16/20

12

• C I

B

SI 2008

8

.2

. 5 Comb lned wl dth of the l ntemal measuring jaws

the

8

.2

.4

P

arallellsm ofthe facesfor

i

nterna  

measure

men

t

8

.2

.

3

Sq

u

arenMs

o

f

t

he

f

i

xed

fa

c

es far

externa

 

measur

eme

n

t

be

b y

m

e .

8 .2

.2

P a

r

a

l le

lls

m of

t

h

e faces

fo

r

e

xte

rn

a

l

m

ea

s u

r

e

m

ent

o1

b y

pol

nts

the a

w s

at différ

e

nt the

the

o1

20

1

P ar

a l l

e

ll s

m

s

ha

l l

8.2.1 Flat

ness of the faces fo

r exte

m

a

l measu

re

m

ent

($00

es

8.2

M easuri ng faces

8. 1

D eviation of readi ng

S

u

pportthe c a l l

pe

r ao

ng t

he

s tee

ofthe b

eam

w

th t

he ja

ws

measu f '

in

g

b y aca

u

a

cy

me

c

hlne. Che<kth

e

rNdlng

.na

m

i

nlmum

ofat le

astflv

e

1ha

t

b y

Methods of test

Page 17: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 17/20

0

85 2 003 • 1 3

m t

ceosec

pe w1t:h ~

by b y

BRITISH

STA NDAR D

Page 18: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 18/20

1

4

C B

S I

2 0 0

8

C.

l

A p

p

li

c

ation

thé

Ga

l'é

t

í

ps

b y

ll

g

htly tighte

n

l

ng

lt

s

lock

ng

s c

r

ew

 

be

c . 2

P

reparation

the -

th

en

b

e

check

ed.

to

be

be

be

be

c . 1

G

eneral

be-

tflat

fctlowed

Annex

c(into

rmativ•>

B R I TISH

S T

AND

AR D

5887:2008

Page 19: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 19/20

1 5

Standard

s

p u b l í c a 1 ion

s

reterences,

W l

a1éS't

edlt

ioh

the

refee

ence

d doc um

ent

(

lndudl

ng

B S S 3 1 7

, Spt:

cffl~tl

óno

r

metric

l~ng'th

batsand

th ~ lrac c

e

tt0riM

Page 20: BS 887-2008

7/25/2019 BS 887-2008

http://slidepdf.com/reader/full/bs-887-2008 20/20

w lde [

I J ) )pe<l l

l

f" ll milli: ln:

il

wOOardi l ' I Y l . ' l u g h ltS

L

l b r ' í tl)  

6S I ate elsc

det.:l

i

ls 00

1 1 1 1

iU .

p t \ ) l l C " l . 1

ard

C O O U

Cl

lttt -.

fomutloo

CMUC

T e . 1 :

'

+44

(

0

)

2089961'11

1

F

er. +4A (0

)

20

8996 7048

E tRall: h

tf

oObtigroup

.

co

rn

Su

 ng

mooib

m

ó

l

6~  

U fl lO&e

vf  l .

b.u

a

n hrds

de\ielOpfflen

tJ aod recel\'e :ulwtan

t

i a l d

loco

unts

oo

tltt p o

rd\il

;c p

l'a

f.tarld 1

t

di o f e e s e

+44

(0)20 8996 Fa>e .~ (0)20 8996 7001

membri

lp4lb9: igrau

p . c om

St.a

r.dnrd:i - . 1 & .

be:

at

www

bsSgroup.com

Cop

y r ight

~~ 7 . : .~~ ~=- :18 ~ ~; :_=:~ · ~~:.

r

:

~l.;h

l

~)'t~NloM

' 1 1 . 1 . 1«lan<>~

l'Nf/~.-.;:~:ll) kllníiM\,,.:i

~"' 1 1 1 1

,; n ·

i 1 1 1

o lr1 1""' 1r.s.u-~"l''

" " '

1tt- 

:;

 ~r

~

-.MJ'ó t; r-

~:"~~~.,t5t,. o t . ,: 0 : : . ~ ~ " ~

~

~:1~-~d .. - - . 1 • l l l f A ~ .

«

~Ml'IOIW

ll d

1<

1

V

pib'

" I J IOll

f*ilflo<utl

1 1 l . 'Q lfocJ lol

Daii-'d l't:o

n .:o::¡i

'W

:""4

f O P 4

1 1 9 1 > 1,.,0

t-.

1:~

~ +4A (0)20

89

96 9001

F

a

t

+U

(0)20

899

6

700

1

conv'stand&fd.;

BSI Group

Headquarte

rs

ft tW I ~

O

n21'S

651. tnemeUor.

S-e

n

df

D   'd g

n

.t. '100

~

p.ib

 

i

rd

be 6 . S I

TH

:

. . . . 4 . 4 (

0

)

2-0

8996

900

1 h

it

~

+44

(

0

)20 8996

7

001

'm u mHf

a l

oo b u ~ · dlrectfy a deb

l

vm-dlt a.. " l l

l

m1n

t

h

e B S

Shop

o

n ite w w w

.

b s igroup.c om/S'hop

I n r e s p o n s e too m e r s l o r titen- . a t O t " I B I

ua

nd l

rds,

• 8 5 1 pc l l cy to

.\ U

p p l y

l

he B S

I

lm p

le

m

e r r t . a

t

b'I

o f uese th a

l

h & v

l:

bt:len p ub l

l shtd

as

B

litl

stl S

U I M W s , .

un\s

$ t l ' l e t 1 .\•

l ; e -

""ll.le :ie:f

S

~ocj¡ytl¡

h

ouh J make su~ lhat

they

pcssess

úic

t s tes

t 1 r n

er

u

:tre

: 1 u :

tdl1100S

to

al º " '

b e

1 . 1 > 1 n g \'O uldtlfom'\

tedw'l

i G a l

c oo wr i t t

~ res

f)Of'ISlb~

t

h

e

ld

toüt-/

•J

lh dl c an

fou

M

+44

(

0

}

2

0 8996 9000 f

.it

:

+44

(0)20 8996 7400

S t ' r ' Y k : e c al   ed

ttiet

su~

m

a

ui«r. .alica

fl

y rKelut lh~

e

tes t

o

f

level