Bureau of Indian Standards
BIS is a story institution established under the Bureau of Indian Standards Act, 1986 1o promote
harmonious development ofthe aclvi ol standadizaton, marking and quality certification of goods and
{Mending 0 connected matters in the county
Copyright
BIS has the copyright of al ts publications. No par ofthese publications may be reproduced in any form
without the pror Permission in wen of BIS. This docs not preclde the fre use, in the course of
"implementng the standard, of necessary dels, such as Symbols and sizes, ype or grade designations.
"Enquire cating to copyright be addressed 1 the Directo (Publication), BIS
Review of Indian Standards
Amendment are sued to standards asthe aed aries onthe hess of comments, Standards are also reviewed
periodica: standard along with amendments raffimed when such review indicates that no changes are
needed the review indiats that changes are geeded taken up for revision. Uses of Indian Standards
‘Should ascertain that they ar in posession ofthe ats amendment or edition by referia to the latest issue
‘OBIS Handbook” and Standards Monthly Ados
“This Indian Standard has been developed ftom Doc: No. CED 44 (4614)
Amendments Issued Since Publication
TES Du of Fe Ton Affe
BUREAU OF INDIAN STANDARDS
Headguarer
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 10002 Telegrams: Manaksanstha
Telephones: 32301 31,323 3375, 3239402, (Common ial fs)
Regional Offices Telephone
Central Mara Bhavan, 9 Bahadur Shah Zar Marg, 323 7617, 328.3841
NEW DELHI 10002
stern + 1/14 CLT. Scheme VIM, V.LP. Rod, Monkton 33784 99,397 8561
CALCUTTA 700054 3378626, 33791 20
Northern : SCO 335-326, Sestor34-A, CHANDIGARH 16002 60.3843
0 2025
Southern + CT Campus, IV Cross Rend, CHENNAL 00113, 23502 16,235 0442
23515 19,235 2315
Western. 5 Manakalaya, ES MID, Maco, Andheri (East) #329295, 832 78 58
MUMBAI 400093 183278 91, 832 7892
Branches : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR
COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI
HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR.
PATNA. PUNE. THIRUVANANTHAPURAM,
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