IS 13847: Technical drawings - Tolerancing of orientation and location - Projected tolerance zone

13 Pages·1993·1.1 MB·English

by  Bureau of Indian Standards

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IS 13847 (1993): Technical drawings - Tolerancing of
orientation and location - Projected tolerance zone [PGD
24: Drawings]
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IS 13847 : 1993
IS0 10578 : 1992

Indian Standard
TECHNICAL DRAWINGS - TOLERANCING FO
NOITATNEIRO AND NOITACOL - PROJECTED
TOLERANCE ENOZ
c
UDC 744’43 : 621 : 753’1

Q BIS 3991
BUREAU OF INDIAN STANDARDS
MANAR BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
December 1993 Price Group 3
Drawings Sectional Committee, LM 02
NATIONAL FOREWORD
This Indian Standard which is identical with IS0 10578 : 1992 ‘Technical drawings - Toleran-
cing of orientation and location - Projected tolerance zone’, issued by the International
Organization for Standardization ( IS0 ), was adopted by the Bureau of Indian Standards on
the recommendations of the Drawings Sectional Committee ( LM 02 ) and approval of the Light
Mechanical Engineering Division Council.
The text of IS0 standard has been approved as suitable for publication as Indian Standard
without deviations. Certain conventions are however not identical to those used in Indian
Standards. Attention is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should
be read as ‘Cndian Standard’.
b) Comma ( , ) has been used as a decrmal marker while in Indian Standards, the current
practice is to use a point ( . ) as the decimal marker.
In this adopted IS0 standard, reference to IS0 1101 : 1983 has been made. The Indian Standard
IS 8000 ( Part 1 ) : 1985 ‘Geometrical tolerancing on technical drawings : Part 1 Tolerances of
form orientation, location and run-out and appropriate geometrical definitions’ ( first revision )’
which is identical with IS0 1101 : 1983 is to be substituted in its place.
IS 13847 : 1993
IS0 10578 : 1992
.
Indian Standard
TOLERANCING FO
TECHNICAL DRAWINGS -
NOITATNEIRO AND LOCATIO~N -- PROJECTED
TOLERANCE ENOZ
1 Scope 3 Definitions
sihT lanoitanretnI dradnatS senifed eht dohtem fo For eht sesoprup fo siht lanortanretnI .dradnatS eht
gnicnarelot yb noitacidni fo a projected ecnarelot snoitinifed nevig ni 0SI 10I? .ylppa
enoz dna seificeps eht dohtem fo .noitacidni
NOTE 1 The definition of the “minimum external pro-
jection of the feature” is under consideration and will be
added at a later date to this International Standard.
2 Normative reference
ehT gniwollof dradnats sniatnoc snoisivorp ,hcihw 4 Projected tolerance zone
hguorht ecnerefer ni siht ,txet etutitsnoc snoisivorp
fo siht lanoitanretnI .dradnatS tA eht time fo -ilbup ehT projected ecnarelot enoz seilppa ot eht -inim
,noitac eht noitide detacidni saw .dilav llA sdradnats mum lanretxe noitcejorp fo eht erutaef hcihw si
era tcejbus ot ,noisiver dna seitrap ot stnemeerga
desab no siht lanoitanretnI dradnatS era -ruocne - detacidni no eht gniward yb eht lobmys @ -lof
dega ot etagitsevni eht ytilibissop fo gniylppa eht dewol yb eht -projected ,noisnemid
most tnecer noitide fo eht dradnats detacidni .woleb

Members fo CEI dna 0SI niatniam sretsiger fo -ruc - detneserper yb a niahc niht dehsad-elbuod enil

yltner dilav lanoitanretnI .sdradnatS ni eht gnidnopserroc gniward ,weiv dna
0SI ,3891:1011 Technical drawings - Geometrical - indicated ni eht ecnarelot frame yb eht lobmys
tolerancing ~- Tolerances of form, orientation, lo- @ decalp retfa eht ecnarelot fo eht decnarelot
cation and run-out - Generalities, definitions, sym- .erutaef
bols, indications on drawings.
eeS erugif 1
IS 13047 : 1993
IS0 10578 : 1992
.
JWL

Figure 1

2
SI 13047 : 1993
IS0 10579 : 1992
.
Annex A
(informative)
Examples of indication on drawings, interpretation and functional length
elbisaef fi eht lanoitcnuf snoitidnoc gnitaler ot
A.1 Indication and interpretation
gniredluohs or gnirtnec od ton permit .ti
redisnoC eht elpmaxe fo a wercs 3 gnissap hguorht
a trap 2 dna gninetsaf otni a trap ,1 sa nwohs ni -gif b) ehT ecnarelot rof trap 1 dluoc eb denethgit tub
siht may esaercni eht tsoc fo eht .trap
eru .1.A
ehT noitacificeps fo eht trap 1 si nevig ni c) nA lanoitidda ecnarelot dluoc eb ,deificeps rof
erugif 2.A a) dna eht gnidnopserroc noitaterpretni si elpmaxe a ytiralucidneprep ecnarelot fo rellams
nevig ni erugif 2.A .)b eulav naht eht noitacol ,ecnarelot tub siht osla
sesaercni eht tsoc fo eht .trap
ehT noitisop fo eht sixa fo eht dedaerht eloh ni trap
1 ees( erugif )3.A swohs taht ti dluow eb elbissopmi d) ylevitanretlA a projected ecnarelot enoz may eb
ot tresni eht .wercs erehT era a rebmun fo elbissop deificeps sa nwohs ni .Aerugif .)b sihT swolla
syaw ot etanimile siht ecnerefretni sa .swollof rof a mumixam ecnareiot elihw gnirusne as-
ylbmes ees[ .Aerugif .])a ehT noitaterpretni si
a) ehT eloh ezis fo trap 2 dluoc eb desaercni sa nevig ni erugif 5.A c).
nwohs ni .Aerugif tub siht noitulos may ton eb
8 03 2 .nim

03M_
Figure A.1
,
1913847: 1993
I$0 10678:1992
.
Extreme locations
&GO,2
L Thickness of feature
b) Interpretation
a) Indication on the drawing
Figure A.2
c
Figure A.3

4~3 0,56 _
Extreme location -4
Figure A.4

4
IS 13847 : l-993
iSO 10578 : 1~992
.
0 30,2
r
!
Thickness of mating feature -
c
a) Assembly assured
00,2
Length of mating feature Positional tolerance

'y
Extreme locations
b) indication on the drawing
cl Interpretation
Figure A.5

5