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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 15725 (2006): Automotive tyres - Tyre curing envelop - Cold process [TED 7: Automotive Tyres, Tubes and Rims] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS15725:2006 W’1’aTm zFR@mTTF-mwm wmrmFG— — Indian Standard AUTOMOTIVE TYRES — TYRE CURING ENVELOP — COLD PROCESS ICS 83.160.10 0 BIS 2006 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 November 2006 Price Group 1 Automotive Tyres,Tubes and Rims Sectional Committee, TED 7 FOREWORD This Indian Standard was adopted by the Bureau of.Indian Standards, after the draft finalized by the Automotive Tyres,Tubes andRims Sectional Committee hadbeen approved bytheTransport Engineering Division Council. Forthepurpose ofdeciding whether aparticular requirement ofthisstandardiscomplied with,thefinalvalue,observed orcalculated, expressing theresult ofatestoranalysis, shallberounded offinaccordance with IS2:1960 ‘Rulesfor rounding offnumerical values (revised)’. Thenumber ofsignificant placesretained intherounded offvalue shouldbe thesameasthat ofthe specified value inthis standard. IS 15725:2006 Indian Standard AUTOMOTIVE TYRES — TYRE CURING ENVELOP — COLD PROCESS 1 SCOPE 3 TEST REQUIREMENTS This standard prescribes requirements and methods of Minimum one number shall be tested for the following testing fortyre curing envelop by cold process. requirements. 2 REFERENCES 3.1 Vkual Examination and Workmanship The following standards contain provisions, which 3.1.1 Workmanship shall be of suchquality thatthetyre throughreference inthistext, constitute provisions ofthis curing envelop isfree from any such defect which may standard.Atthetime ofpublication theeditions indicated affect the appearance or impair itsserviceability. werevalid.Allstandardsaresubjecttorevisionandparties to agreements based on this standard are encouraged to 3.1.2 The tyre curing envelop shall be symmetrical in investigate the possibility of applying the most recent shape and designed to fit properly on the tyres. The editions ofthe standards indicated below: dimensions shallbe suchthat itmeetstherequirement of rs/(0. Title thecuring process. 3400 Methods oftestfor vulcanized rubber: (Part 1): 1987 Tensile stress-xtrain properties (second 3.2 Material revision) Tyrecuring envelop in various sizes shall be made from (Part 2): 2003 Rubber,vulcanized orthermoplastic — an appropriate rubber composition having excellent heat Determination of hardness (Hardness air ageing properties inair,steamwater,hotflexproperties andresistance togrowth inservice. The finishedproduct between 10RI-IDand 100IRHD)(third shallbeusable for minimum 100curings. revision) (Part 4): 1987 Accelerated ageing (second revision) 3.3 Test Method (Part 17):1974 Tear strength —Angular test piece Thesampleshallconform totherequirements whentested (Part 22) :1984 Chemical analysis asperTable 1. Table 1Test Requirements s Characteristics Requirements Method ofTest, No. Ref to Part of Is 3400 (1) (2) (3) (4) O Vkualexamination Markingshallbe — permanentlyengravedas detailedin 4 ii) Hardness,shoreA,Max 60 -Part2 iii) Ashcontent,MUX,percent 4.0 “Part22 iv) Rubberhydrocarboncontent,percent,Min 55.0 — v) Tensilestrength,kgt7cm2,Min 80 Part 1 vi) Elongationatbreak,percent,Min 600 Part 1 vii) Changeinphysicalpropertiesafteracceleratedageing at170+ 2°Cfor24h: a) Tensilestrength,percent,Max 60 Part4 b) Elongationatbreak,percent,Max 40 Part 1 viii) Tensionset(50percentelongation 60 Part17 at 170*2°Cfor8h), Max IS 15725:2006 4 “MARKING between themanufacturer andthe purchaser. Curing envelop shallbepermanently and legibly marked 6 BIS CERTIFICATION MARKING withthefollowing: Theproduct mayalsobemarked withtheStandardMark. a) Size; 6.1 The use of the Standard Mark is governed by the b) BatchNo./Lot No.; and provisions of the Bureau of Indian Standards Act, 1986 c) Manufactures name/trade-mark. and the Rules and Regulations made thereunder. The details of conditions under which the licence forthe use 5 PACKING oftheStandard Markmaybe granted tomanufacturers or Material shallbesuitably packed toavoid damage during producers may be obtained from the Bureau of Indian transitlhandling. Thepacking shallbemutually agreedto Standards. 2 Bureau of Indian Standards BI-Sis a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters inthe 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 tothe Director (Publications), BIS. Review of Indian Standards Amendments are issued to standards asthe need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments isreaffirmed 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 inpossession ofthe latest amendments oredition byreferring tothe latest issue of ‘BIS Catalogue’ and’ Standards :Monthly Additions’. This Indian Standard has been developed from Doc :No. TED 7(463). Amendments Issued Since Publication Amend No. Date of Issue Text Affected BUREAU OFINDIAN STANDARDS Headquarters : Manak Bhavan, 9Bahadur Shah Zaf a r Mrtrg,New Delhi 110002 Telegrams :Manaksanstha Telephones :23230131,23233375,2323 9402 (Common to all offices) Regional Offices : Telephone Central :Manak Bhavan, 9Bahadur Shah Zafar Marg 23237617 NEW DELHI 110002 { 23233841 Eastern : 1/14C.I.T. Scheme VII M,V.1.P. Road, Kankurgachi 23378499,23378561 .KOLKATA 700054 { 23378626,23379120 Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022 2603843 {2609285 Southern :C.I.T. Camu.-us, IVCross Road, CHENNAI 600113 ~225412 16,22541442 122542519,22542315 Western :Manakalaya, E9 MIDC, Marol, Andheri (East) 28329295,28327858 MUMBAI 400093 { 28327891,28327892 Branches : AHMEDABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. ‘NAGPUR. NALAGARH. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHA~ATNAM. PrintedatPrabhatOfket Ress. 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