**************** 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. Mazdoor Kisan Shakti Sangathan "The Right to Information, The Right to Live'' IS 771-4 (1979) : Glazed Fire-Clay Sanitary Appliances, Part 4: Specific Requirements of Postmortem Slabs [CED 3: Sanitary Appliances and Water Fittings] Jawaharlal Nehru 'Step Out From the Old to the New" aj^&vi iJii^s:y%K^ isb^^ni^seg :<>5&i| mT'5K^5?::5:^>^i»l K^^^iXSVCd^ Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge Bhartrhari — Nitisatakam ''Knowledge is such a treasure which cannot be stolen" ^'^^^r k BLANK PAGE ^*-^^^ PROTECTED BY COPYRIGHT IS : 77J ( Part IV ) - 1979 ( Reaffirmed 2003 ) Indian Standard SPECIFICATION FOR GLAZED FIRE-CLAY SANITARY APPLIANCES PART IV SPECIFIC REQUIREMENTS OF POST-MORTEM SLABS ( Second Revision J First Reprint MARCH ^989 UDC 691 .43U ,7-*4l 2: 616-091 .5 © Cofmi^^hi 1980 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 Gr 2 February 1980 IS: 771 (Part IV) -1979 Indian Standard SPECIFICATION FOR GLAZED FIRE-CLAY SANITARY APPLIANCES PART IV SPECIFIC REQUIREMENTS OF POST-MORTEM SLABS ( Second Revision J Sanitary Appliances and Water Fittings Sectional Committee, BDC 3 Chairman Representing Shri V. D. DtsAi Bombay Municipal Corporation Members Adviser Central Public Health & Environmental Engineering Organization ( Ministry of Works & Housing ) Shr! B. B* R.\u ( Alternate ) Shri H. R. Badyal Indian Iron & Steel Co Ltd, Calcutta Shri K. D. Biswas ( Alternate ) Shri M. K* Basu Central Glass & Ceramic Researcb Institute (CSIR), Ahmadabad Shri D. S. Chabhal Directorate General of Technical Development, New Delhi Shri T. Ramasubramanian { Alternate ) Shri S. P. Chakrabarti Central Building Research Institute ( CSIR ), Roorkee Shri S. K. Sharma ( Alternate ) Chief Engineer Public Health Engineering Department, Government of Kerala, Trivandrum Shri K, Ramachandran ( Alternate ) Chief Engineer Tamil Nadu Water Supply & Drainage Board, Madras Chief Engineer U. P. Jal Nigam, Lucknow Superintending Engineer ( Alternate ) Chief Engineer ( Water ) Municipal Corporation of Delhi, Delhi Drainage Engineer ( Alternate ) Shri L, M. Choudhary Public Health Engineering Department, Government of Haryana, Chandigarh Shri I, Chandra ( Alternate ) ( Continued on page I ) © Copyright 1980 BUREAU OF INDIAN STANDARDS This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act. IS: 771 (Part IV) -1979 ( Continued from page I ) Members Representing City Engineer Bombay Municipal Corporation HydkwucEugwebr { Alternate ) Shri H. N. Dallas Indian Institute of Architects, Bombay Lala G. C. Das National Test House, Calcutta ShriT, R. De Institution of Engineers ( India ), Calcutta Director ^ Bombay Potteries & Tiles Ltd, Bombay Shri A. M. Kembhavi ( Alternate ) Shri B. R. N. Gupta Engineer-in-Chiefs Branch ( Army Headquarters ) Shri K. V. Krishnamurthy ( Alternate ) Shri M. T. Kanse Directorate General of Supplies & Disposals. New Delhi Shri S. R. Kshirsaoar National Environmental Engineering Research Institute ( CSIR ), Nagpur Shri R. C. Reddy ( Alternate ) Shri K. Lakshminarayanan Hindustan Shipyard Ltd» Vishakhapatnam Shri A. Shariff ( Alternate ) Shri P. S. Rajvanshi Public Health Engineering Department, Govern- ment of Rajasthan, Jaipur Shri RANJrr Singh Railway Board ( Ministry of Railways ) Dr A. V. R. Rao National Buildings Organization, New Delhi Shri P. Jaoanath Rao E.I.D.-Parry Ltd, Madras Shri M. Moosa Sulaiman ( Alternate ) Shri R. K. Somany Hindustan Sanitary ware & Industries Ltd, Bahadurgarh SuPBRiNTENDiNO SURVEYOR OF Central Public Works Department, New Delhi Works ( NDZ ) Surveyor of Works I ( NDZ ) ( Alternate ) Shri D. Ajitha Simha, Director General, ISI ( Ex-officio Member ) Director ( Civ Engg ) Secretary Shri S. P. Maggu Assistant Director ( Civ Engg ), ISI Domestic Sanitary Appliances and Accessories Subcommittee, BDC 3: 1 Convener Shri O. F. Khambatti Bombay Municipal Corporation Members Shri M. C. Aorawal Indian Plastics Ltd, Bombay Shri N. L. Birla ( Alternate ) Assistant Director, Standards Ministry of Railways ( Architecture ) ( RDSO ) ( Continued on page 6 ) IS:771(PartIV)-1979 Indian Standard SPECIFICATION FOR GLAZED FIRE-CLAY SANITARY APPLIANCES PART IV SPECIFIC REQUIREMENTS OF POST-MORTEM SLABS ( Second Revision ) 0. FOREWORD 0.1 This Indian Standard ( Part IV ) ( Second Revision ) was adopted by the Indian Standards Institution on 4 May 1979, after the draft finalized by the Sanitary Appliances and Water Fittings Sectional Committee had been approved by the Civil Engineering Division Council, 0.2 This standard was first issued in 1958 and was revised in 1963 to cover requirements for additional glazed earthenware sanitary appliances, such as Orissa pan, laboratory sink, squatting plate, slab and stall urinal and half-round channel. In this revision the scope of the standard has been restricted to cover requirements for glazed fire-clay sanitary appliances only, ' since the glazed earthenware sanitary appliances were outdated as well as unhygienic. The Sectional Committee has found that only some of the sanitary appliances were being made in glazed fire-clay and, therefore, decided to cover the requirements for these appliances only in this revision. The general requirements for different types of appliances have been covered in separate parts of the standard. This standard ( Part IV ) lays down the specific requirements of post-mortem slabs. 0.3 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expres- sing the result of a test or analysis, shall be rounded off in accordance with IS: 2-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. 1. SCOPE 1.1 This standard (Part IV) lays down the pattern, size construction, dimensions, tolerances and finish of post-mortem slabs made of fire-clay. ♦Rules for rounding off numerical values ( revised), 3 IS : 771 ( Part IV ) - 1979 2. REQUIREMENTS 2.1 General — The general requirements for material, manufacture, methods of test, sampling and inspection shall conform to IS:77l ( Part I )-1979*. 2.2 Pattern and Size — The post-mortem slabs shall be of the pattern as shown in Fig. 1 and shall be 2100x790 mm in size. 2.2.1 The post-mortem slabs may be made in other patterns and sizes where so agreed to between the manufacturer and the purchaser. However, tolerances on dimensions shall be as allowed in this standard. 2.3 Construction — Post-mortem slabs shall be with or without pedestals and when provided with pedestals this shall be of 3-piece construction. The inside surface of the post-mortem slabs shall be uniform and smooth except for serrations provided for the drainage of the dissection fluid. The floor of the post-mortem slabs shall have a circular waste hole into which the interior of the slabs shall drain. The waste hole shall be rebated internally. 2.4 Dimensions and Tolerances 2.4.1 Dimensions — The dimensions of the post-moTtem slabs shall be as given in Fig. 1. 2.4.2 Tolerances — The following tolerances shall be allowed on the dimensions specified in 2.4.1: a) On dimensions of 50 mm and over ± 4 percent b) On dimensions less than 50 mm ± 2 mm 3. MARKING 3*1 Each post-mortem slab shall be clearly and indelibly marked at a prominent place with the name or trade-mark of the manufacturer, 3.1.1 Each post-mortem slab conforming to the requirements specified in this standard may also be marked with the ISI Certification Mark. Note — The use of the ISI Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks ) Act and the Rules and Regulations made thereunder. The ISI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, •testing and quality control which is devised and supervised by ISI and operated by the producer. ISI marked products are also continuously checked by ISI for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the ISI Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution. ^Specification for glazed fire-clay sanitary appliances: Part I General requirements ( second revision ). SECTION XX SECTION YY All dimensions in millimetres. Fig. 1 PosT-MoRTEM Slab «» 5 s 5 IS : 771 ( Part IV ) - 1979 ( Continued from page 2 ) Members Shr] M. K. Basu Shri G. T. Bhide Shri O. p. Ratra ( Alternate ) Shri S. P. Chakrabarty Chief Engineer Chief Engineer ( Water ) Additional Chief Engineer { Water ) ( Alternate ) City Engineer Director Representing Central Glass & Ceramic Research Institute (CSIR), Ahmadabad National Buildings Organization, New Delhi Central Building Research Institute ( CSIR ), Roorkee Tamil Nadu Water Supply & Drainage Board, Madras Municipal Corporation of Delhi, Delhi Shri A. M. Kembhavi ( Alternate ) Bombay Municipal Corporation Bombay Potteries & Tiles Ltd, Bombay Shri M. K. Ganpule Shri R. M. Joshi { Alternate ) Shri B, R. N. Gupta Shri K. V. Krishnamurthy ( Alternate ) Shri M. T. Kanse Parshuram Pottery Works Co Ltd, Thangadh Ministry of Defence Shri B. K. Malhan Shri B. S. Mirchandani Directorate General of Supplies & Disposals, New Delhi In personal capacity ( 9 Jain Mandir Road, New Delhi ) Phenoweld Polymer Private Limited, Bombay Shri A. S. Mirchandani ( Alternate ) Shri D. Appukuttan Nair Public Health Engineering Department, Government of Kerala, Trivandrum Shri K. Ramachandran ( Alternate ) Shri B. J. Pentony Neiveli Ceramics & Refractories Limited, Vadalur Shri Umatosh Sarkar ( Alternate ) Shri P. Jaganath Rao E.I.D.-Parry Ltd, Madras Shri M. Moos a Sulaiman ( Alternate ) Shri L. R. Sehgal Shri Amal Kumar Sen Shri R. K. Somany Surveyor of Works ( NDZ ) Shri S. A. Tunoare L. R. Sehgal & Company, New Delhi Bengal Enamel Works Ltd, Calcutta Hindustan Sanitaryware & Industries Ltd, Bahadurgarh Central Public Works Department, New Delhi Indian Institute of Architects, Bombay BUREAU OF INDIAN STANDARDS Headquarters : Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Telephones : 3 31 01 31, 3 31 13 75 Telegrams : Manaksanstha ( Common to all Offices ) Regional Offices : Telephone ^Western ; Manakalaya, E9 MIDC, Marol, Andheri ( East ), 6 32 92 95 BOMBAY 400093 tEastern : 1/14 C. I. T. Scheme VII M, V. I. P. Road, 36 24 99 Maniktola, CALCUTTA 700054 Northern : SCO 445-446, Sector 35-C 72 18 43 CHANDIGARH 160036 \3 16 41 Southern : C I. T. Campus, MADRAS 600113 r41 24 42 ^41 25 19 L41 29 16 Branch Offices : Pushpak/ Nurmohamed Shaikh Marg, Khanpur, /2 63 48 AHMADABAD 380001 \2 63 49 'F' Block, Unity BIdg, Narasimharaja Square, 22 48 05 BANGALORE 560002 Gangotri Complex, 5th Floor, Bhadbhada Road, T- T. 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