इंटरनेट मानक

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.

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

Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”

IS 12979 (1990): Mould for determination of linear

shrinkage - [CED 43: Soil and Foundation Engineering]

“!ा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”
 ( Reaffirmed 2006 )

MOULD FOR DETERMINATION OF LINEAR

SHRINKAGE- SPECIFICATION

..”

UDC 624131’434 : 620’1’05

..”

/-\
’\ :
._’ @ BIS 1991

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
.
January 1991 Price Group 1
Soil and Soil Engineering Sectional Committee, CED 23

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized
by the Soil and Soil Engineering Sectional Committee had been approved by the Civil Engineering
Division Council.

The equipment covered in this standard is meant to be used as a part of the apparatus for
determination of the linear shrinkage of remoulded soils as covered in IS 2720 ( Part 20 ) : 1966
‘Methods of test for soil : Part 20 Determination of linear shrinkage’.

For the purpose of deciding whether a particular requirement of this standard is complied with,
the final value, observed or calculated, expressing the result of a test or analysis, shall be
rounded off in accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)‘.
The number of significant places retained in the rounded off value should be the same as that
of the specified value in this standard.
 IS 12979 : 1990

Indian Standard
MOULD FOR DETERMINATION OF LINEAR
SHRINKAGE- SPECIFICATION
1 SCOPE b) End Plates - 2 No.

1.1 This standard covers general requirements, c) Securing screws - 4 No.

materials and dimensions for moulds used as
part of the apparatus for the determination of 4 MATERIALS
linear shrinkage of remoulded soils.
4.1 The materials for construction of the
2 REFERENCES different component parts of the mould,
namely, body, plates and screws shall conform
2.1 The following Indian Standards are neces- to IS 292 : 1983.
sary adjuncts to this standard:
5 DIMENSIONS
IS .NO. Title
5.1 The dimensions of the component parts of
292 : 1983 Leaded brass ingots and the mould shall be as detailed in Fig. 1. The
castings ( second revision )
tolerances on the dimensions wherever not
2102 General tolerances for dimen- mentioned in Fig. 1 shall be as given in IS 2102
( Part 1 ) : 1980 sions and form and position: ( Part 1 ) : 1980 and shall be medium class.
Part 1 General tolerances for
linear and angular dimensions 6 MARKING
( second revision )
6.1 The following information shall be clearly
3 GENERAL REQUIREMENTS and indelibly marked on each mould:

3.1 The mould shall consist of the following a) Indication of the source of manufacturer;
(see Fig. 1 ): and

a) Body b) Batch number.

M5x15 CSK HD SCREWS

25 kO.25

125 d 0.25

I
L SECURING
L BODV END PLATES
SCREWS

All dimensions in millimetres.

FIG. 1 MOULD FOR LINEAR SHRINKAGE

 -.
Standard Mark

The use of the Standard Mark is governed by the provisions of the Bureau ofIndian Standards
Act, 1986 and the Rules and Regulations made thereunder. The Standard Mark on products
covered by an Indian Standard conveys the assurance that they have been produced to comply &ith
the requirements of that standard under a well defined system of inspection, testing and quality
control which is devised and supervised by BIS and operated by the producer. Standard marked
products are also continuously checked by BIS for conformity to that standard as a further safe-
guard. Details of conditions under which a licence for the use of the Standard Mark may be granted
to manufacturers or producers may be obtained from the Bureau of Indian Standards.
I I
Bureau of Indian Standard6

BIS is a statutory institution established under the Bureau of In&an Standards Act, 1986 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 IO the Director ( Publications ),
BIS.

Revision of Indian Standards

Indian Standards are reviewed periodically and revised, when necessary and amendments, if any,
are issued from time to time. Users of Indian Standards should ascertain that they are in
possession of the latest amendments or edition. Comments on this Indian Standard may be sent
to BIS giving the following reference:

Dot : No. CED 23 (4451 )

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002

Telephones : 331, 01 31,331 13 75 Telegrams : Manaksanstha
( Common to all Offices )

Regional 05ces:

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg 331 01 31

NEW DELHI 110002 331 13 75

Eastern : l/14 C.I.T. Scheme VII M, V.I.P. Road, Maniktola 37 86 62

CALCUTTA 700054

Northern : SC0 445-446, Sector 35-C, CHANDIGARH 160036 2 1843

Southern : C.I.T. Campus, IV Cross Road, MADRAS 600113 41 29 16

Western : Manakalaya, E9 MIDC, Marol, Andheri (East) 6 32 92 95

BOMBAY 400093

Branches : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR.

COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI.
HYDERABAD. JAIPUR. KANPUR. PATNA. THIRUVANANTHAPURAM.

Printedat Arcee Press,New Delhi, India

*