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“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न' 5 तरफ”

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IS/ISO 9248 (1992): Earth-moving Machinery - Units for

Dimensions, Performance and Capacities, and Their
Measurement Accuracies [MED 7: Material Handling Systems
and Equipment]

“!ान $ एक न' भारत का +नम-ण”

Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह”

है”
ह
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
 IS/IS09248 : 1992
(Reaffirmed 2001)

Indian Standard
EARTH-MOVING MACHINERY -UNITS FOR
DIMENSIONS, PERFORMANCE AND
CAPACITIES, AND THEIR MEASUREMENT
ACCURACIES

ICS 53.100

@ BIS 1996

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

March 1996 Price Group 1

Bulk Handling Systems and Equipment Sectional Committee, HMD 7

NATIONAL FOREWORD

This Indian Standard which is identical with IS0 9248 : 1992 ‘Earth-moving machinery - Units for
dimensions, performance and capacities, and their measurement accuracies’, issued by Interna-
tional Organization for Standardization ( IS0 ) was adopted by the Bureau of Indian Standards on
the recommendations of Bulk Handling Systems and Equipment Sectional Committee and approval
of the Heavy Mechanical Engineering Division Council.

The text of IS0 standard has been approved for publication as Indian Standard without deviations.
Certain terminology 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 ‘Indian Standard’
b) Comma (J has been used as a decimal marker while in Indian Standards, the current practice
is to use a point (.) as a decimal marker.

In this adopted standard, reference appears to IS0 6165 : 1987 ‘Earth-moving machinery - Basic
types -Vocabulary’ for which Indian Standard also exits. The corresponding Indian Standard which
is identical with International Standard and shall be substituted in its place is IS 12138 : 1993
‘Earth-moving machinery - Basic types - Vocabulary ( first revision )‘.

In reporting the results of a test or analysis made in accordance with this standard, if the final value,
observed or calculated, is to be rounded off, it shall be done in accordance with IS 2 : 1960 ‘Rules
for rounding off numerical values ( revised )‘.

ADDITIONAL INFORMATION

In this adopted standard, reference also appears to IS0 1000 : 1981 ‘SI units and recommendations
for the use ot their multiples and of certain other units’ for which Indian Standard also exits. The
corresponding Indian Standard which is identical with this International Standard and shall be
substituted in its place is IS 10005 : 1985 ‘SI units and recommendations for the use of their multiples
and of certain other units ( first revision )‘,
 IS/IS0 9248 : 1992

Indian Standard
EARTH-MOVING MACHINERY - UNITS FOR
DIMENSIONS, PERFORMANCE AND
CAPACITIES, AND THEIR MEASUREMENT
ACCURACIES

1 scope Members of EC and IS0 maintain registers of cur-

rently valid International Standards. _
This International Standard specifies basic units,
symbols and tolerances for the measurements of IS0 6165:1987, Earfh-moving machinery - Basic
general machine dimensions, performance and ca- types - Vocabulary.
pacities of earth-moving machinery as defined in
IS0 6165. 3 Units
It does not cover methods and instrumentation to be
Basic and derived units for earth-moving machinery
used. shall be as specified in table 1.

2 Normative reference 4 Accuracy

The following standard contains provisions which, The accuracy of measurements shall be within the
through reference in this text, constitute provis_ions tolerances specified in table 1.
of this International Standard. At the time of publi-
cation, the edition indicated was valid. All standards 5 Rounding off
ale subject to revision, and parties to agreements
based on .this International Standard are encour- The rounding off of measurement results shall be
aged to investigate the possibility of applying the done by adding or subtracting numerical values
most recent edition of the standard indicated below. compatible with the specified tolerance.
IS/IS0 9248 : 1992

Table 1 - Measurement accuracy

NOTE 1 BaSiC and derived units and symbols in table 1 have been taken from IS0 1000:1981, SI units and
recommendations for the use of their multiples and of certain other units.
Quantity Unit Symbol Tolerance’)

Basic units

_inear dimension metre m + 0,5 %

Uass kilogram kg & 2 %
rime second S &- 1 %
< 200 “C: + 1 “C
Zelsius temperature degree Celsius “C
{ > 200 “C: + 2 %
Angle radian rad f 0,02 rad
=requency hertz f 1%

Derived units

4rea square metre m* * ? %

cubic metre m’
Jo!ume -4 f R%
6 litre*i + I. L
Force newton N + 1 +‘c
Pressure Pascal Pa * 2 %
Power watt W + 2 %
Angular velocity radian per second rad/s + 2 %
Speed metre per second m/s * 2 %
Acceleration metre per second squared m/s2 f 2 %
Torque newton metre N.m f2%
Energy joule J f 2.,%
Volumetric rate cubic metre per second m’/s f 2 %
Sound pressure level decibel (ref. 20 PPa ) d8 + 1 dB

1) These tolerances also apply to other units used for the same quantity.

Tolerances for specific quantities not covered in this International Standard, on a larger or a smaller scale, or for Pre-
cision measurements, shall be specified in the individual International Standards which require them.
2) 1 I = 1 dm3

2
Bureau of Indian Standards

BIS is a statutory institution established under the Bureau ofIndianSmzdurds Act, I986 to promote
harmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without, the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also
reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that
no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users
of Indian Standards should ascertain that they are in possession of the latest amendments or edition by
referring to the latest issue of ‘BIS Handbook’ and ‘Standards Monthly Additions’.

This Indian Standard has been developed from Dot : No. HMD 7 ( 5096 ).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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