IS 14787 : 2000 REAFFIRMED 2010 ~~~m~~~~ tfr eft ~ ~ (rllm~1) 3tR ~ - ~ Indian Standard UNPLASTICIZED PVC PIPES (DUCTS) AND FITTINGS FOR UNDERGROUND TELECOMMUNICATIONS CABLE INSTALLATION -- SPECIFICATION ICS 83.140.30 © BIS 2000 BUREAU OF INDIAN STANDARDS MANAK BHA VAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 June 2000 Price Group 8 AMENDMENT NO. 1 MAY 2004 TO IS 14787: 2000 UNPLASTICIZED PVC PIPES (DUCTS} AND FITTINGS FOR UNDERGROUND TELECOMMUNICATIONS CABLE INSTALLATION - -SPECIFICATION ( Foreword, para 9 ) Substitute' Annex Q' for ·Annex P'. ( Page 1, clause 1, line 2 ) -- Substitute 'PVC-V' for 'UPVC'. ( Page 2, clause 7.1.1, line 1 ) ( Page 2, clause 8.1, line 3 ) ( Page 2, clause 8.2, line 5 ) [ Page 2, clause 8.3.2(a) ] ( Page 3, clause 9.2 ) Substitute 'measured' for 'obtained'. Insert 'reasonably' after 'be'. Substitute '0.22 MPa' for '0.25 MPa' . Substitute' 15 percent' for' 12 percent'. Substitute the following for the existing: '9.2 Tensile Strength and Elongation When tested by the method described in Annex P, the tensile strength and elongation at break shall not be less than 40 MPa and 30 percent respecti vel y .' ( Page 3, clause 12, last line) ( Page 3, clause 13.2.1, line 2 ) ( Page 3, Fig. 1, Caption) Insert 'This shall be a type test.' at the cnd. Substitute 'coupler' for 'socket '. Substitute 'COUPLER' for 'SOCKET'. ( Page 4, clause 14 ) - Insert the following at the end: ,Jointing shall be carried out using solvent cement conforming to IS 14182.' ( Page 5, Annex A ) - Insert the following at the end: 'IS 14182 : 1994 Solvent cement for use with unplasticized polyvinyl chloride plastic pipe and fittings - Specification' ( Page 6, clause B·2, last Litle) Substitute' 12.5 ± 0.5' for '5 ± 1'. Amend No.1 to IS 14787 : 2000 [ Page 8, clause F-2(b), Sl No.3 and 4 ] existing: '3) The weight shalJ be 1.7 requir~); Substitute the following for the ± 0.02 kg (by putting high density material inside, if 4) The length shall be 1 500 ± 10 mrn;' ( Page 9, Fig. 4 ) - Substitute' 1 500 ± 10' for' 150 ±10'. ( Page 11, Table 8, line 3, col 2 ) - Substitute '5 ± 0.5%' for '6 ± 0.5%'. Substitute 'wiped dry' for 'wipe, Substitute 'removed' for 'moved' Substitute 'constant' for ( Page 11, Annex J, clause J-2 , line 3 ) - dried'. ( Page 11, Annex J, clause J-2 , line 9) - ( Page 12, Annex K, clause K-3.S, line 2 ) 'content' , ( Page 13, Annex L, clause L-4.2.1, line 9 ) - Insert 'in' after 'leave'. Substitute 'sodium' for ( Page 13, Annex L, clause L-4.3.6, line 2 ) 'ammonium', ( Page 15, Annex N, clause N·l.5, line 4 ) - Insert 'and' after 'Density'. ( Page 15, Annex N, clause N·l.S, lines 4 and 5 ) Dioxide Content'. ( Page J 5, Annex N, clause N-l.S.l line 6 ) t Delete 'and Titanium Insert 'and' after 'Density.' Delete 'and titanium ( Page 15, Annex N, clause N-l.5.1, lines 6 and 7 ) dioxide content'. ( Page 15, Table 10, Title) ( Page 15, Table 10, Title) - Insert 'and' after 'Density'. Delete 'and Titanium Dioxide Content'. Substitute'8.6, 10 and 12' for ( Page 15, Annex N, clause N-2, line 1 ) - '8.6 and 10'. 2 Amend No.1 to IS 14787 : 2000 ( Page 15, Annex N, clause N-2 ) Insert the following Annex P after N-1: ANNEXP (Clause 9.2) TENSILE TEST P-l TEST SPECIMEN The test specimen shall be prepared as per the dimensions given in Fig. 6. P-l.l The test specimen shall be cut longitudinally from a length of pipe by either: a) Heating and flattening it at a temperature of J 25()C 1{) 130°C, then machining it and/or routing it out from the tube wall, in which case the edges of the specimen shall be polished to remove notches, or Punching it from a section of pipe heated to a temperature of 125°C to 130°C, and subsequentl y flattening and machining it. b) P-2 PROCEDURE P-2.1 The specimen shall be kept at 23 ± 1°C for not less than 3 h immediately before testing and the test shall be carried out at 23 ± 1°C. P-2.2 The mean width and mean thickness of the wasted part of the specimen shall be determined to the nearest 0.01 mm. P-2.3 The specimen shall be gripped at its widened ends and shall be mounted in the tensile testing machine in axial alignment in the direction of pull. It shall be loaded by separating the grips at a substantially constant rate of 13 .t 2 min per minute until it breaks. The range of the testing machine being such that the maximum load falls between 15 percent and 85 percent of the maximum scale reading. P·2.4 The recorded maximum load shall not differ from the true value by more than 1 percent or 1.1 N whichever is greater. P-2.S The tensile strength of the specimen shall be calculated from the maximum load and the original area of cross section and shall be expressed in force per un it area. 3 Amend No.1 to IS 14787 : 2000 A H I' e 0 1 L B "I "I -1 JFL .~ E II"~/ 'G EFERENCE LINES All dimensions are in millirnetres .. Overall length, A 150.0 Minimum Width at ends, B 20.0 ± 0.5 Length of narrow parallel portion, C 60.0 ± 0.5 10.0 ± 0.5 Width of narrow parallel portion, D Radius, E 60.0 Minimum .Thickness F Minimum 1.0 .10.0 Maximum 3.0 Preferred Distance between reference lines, G 50.0 ± 0.5 ---------115.0 ± 0.5 Initial distance between grips, /1 NOTE - In anyone specimen, the thickness of the narrow parallel portion shall nowhere deviate by more than 2 percent from the mean. _-----~- , Fig. 6 DIMENSIONS OF TEST PIECE ( Page 16, Annex P, heading) (CED 50) Reprography Unit, BIS, New Delhi, India Substitute 'ANNEX Q' for 'ANNEX P'. 4 Plastic Piping System Sectional Committee, CED 50 FOREWORD This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Plastic Piping System Sectional Committee had been approved by the Civil Engineering Division Council. Unplasticized polyvinyl chloride pipes are being used a ducts for underground telecommunication cable installations for more than a decade on a fairly large scale in India. The cable ducts consist of a nest of PVC pipes laid at a depth of 1 to 1.5 metres below the path/road surface either embedded directly in sand/soil or encased in cement concrete. The number of PVC pipes in the nest varies from 2 to 64. The cable network accounts for about 45 percent of the total investment in external plant telecommunications. PVC ducts are meant for carrying cables under the ground and are generally not exposed to the ill effects of ultra-violet radiation. However, due to restrain excercised by municipal and local government bodies with respect to digging of roads and footpath, the PVC pipes many a times, are stored under unfavourable conditions at sites for longer periods than required. In coastal areas the problem is further aggrevated due to suspension of duct laying operations on account of prolonged and heavy rainy season, thus inviting the attack of UV radiations on left over stocks of PVC pipes at sites. In view of the overall senario in India, a minimum 2.5 percent of titanium dioxide is considered necessary to be included in the material composition of PVC pipes in order to safeguard its quality. Usually, 4-5 percent of titanium dioxide was recommended. However, detailed studies carried out in developed countries on weathering behaviour of UPVC pipes show that at 2.5 percent titanium dioxide sufficient opacity and UV absorption is provided. Beyond this percentage of titanium dioxide, no benefit is gained in retention of gloss, colour and mechanical properties such as yield stress and elongation at break. For the purpose of deciding suitable wall thickness of 110 mm diameter PVC pipe required for encasement in cement concrete, a number of tests have been conducted. This selection depends upon adequate pipe stiffness proportional in wall thickness and outside diameter ratio. Higher the ratio, lower is the pipe stiffness. Based on tests it has been observed that 110 mm diameter PVC pipes having minimum wall thickness of 2.5 mm is suitable for this application. In the preparation of this standard, assistance has been derived from the following: a) RITES Technical Study for Testing Procedures and Specifications for Telecommunication Cable Duct1987. b) lTD Specification No. SIWT-135B-1987, issued by the Department of Telecommunication, Government of India. c) TCIL Specification No. TCIUDUcrS/Specificationsl88. d) ASTM Specification No. F 512-89a for smooth wall PVC conduit and fittings for underground installation. e) Canadian Standard's Association CSA Standard B 196-1 for plastic underground cable ducting, f) Commonwealth of Australia, Postmaster-General's Department Specification No. 966 issue 2. g) TRC Specification No. S2-2S/85-TRC dated 31.10.85 issued by the Department of Communication. Due weightage has also been accorded to the practices prevalent in the international field, while relating the same to practices being followed in India. The Composition of the committee responsible for the formulation of this standard is given at Annex P. For the purpose of deciding weather 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 WiCl IS 2 : 1960 'Rules for rounding off numerical values (revistd) ,. 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 14787 : 2000 Indian Standard UNPLASTICIZED PVC PIPES (DUCTS) AND FITTINGS FOR UNDERGROUND TELECOMMUNICATIONS CABLE INSTALLATION - SPECIFICATION 1 SCOPE This Indian Standard covers the requirements of unplasticized polyvinyl chloride (UPVC) pipes and fittings for use as cable ducts for underground telecommunication cable installation. 2 REFERENCES to establish the suitability and performance capability of the pipes. 3.8 Acceptance Tests Tests carried out on samples taken from a lot for the purpose of acceptance of the lot. 3.9 Production Routine Test Tests conducted on samples of pipes during production that would be necessary to check their conformance with the speci fied provisions. 4 CLASSIFICATION The Indian Standards listed in Annex A contain provisions which through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated in Annex A. 3 TERMINOLOGY The pipes shall be classified by the nominal outside diameter and usage as given in Table 1. Table 1 Classification or PipesIFittings 3.1 For the purpose of this standard, the following definitions shall apply. or Pipe Class Nominal Outside Diameter, DN 110mm Normal Usage 3.2 Nominal Outside Diameter The nominal outside diameter of the pipe or fitting stated in Table 1. CL IIOA CL 110B CL 50 Suitable to be encased in cement concrete Suitable for burial in sand Suitable to be encased in concrete or for burial in sand IIOmm 50mm 3.3 Outside Diameter at Any Point The measured outside diameter at any cross-section of the pipe. NOTE - It is recommended that the cement concrete mix to be used for encasing pipes/fittings should not be lower than M100 grade of IS 456. 5 COMPOSITION 5.1 The material from which the pipe is produced shall consist substantially of polyvinyl chloride to which the required quantity of rutile grade of titanium dioxide shall be added satisfying the requirements laid down in 12 and additives that are needed to facilitate the manufacture of sound pipes of good surface finish, mechanical strength and opacity under conditions of use. The PVC compound shall be without plasticizer. All the additives shall be uniformly dispersed. None of these additivies shall be used separately or together in quantities which may impair the fabrication or welding properties of the pipes, or impairing its chemical and physical properties. 5.1.1 K value of the PVC resin shall not be less than 3.4 Mean Outside Diameter The diameter derived from the circumference of the pipe at any particular cross-section. 3.5 Socket End Pipe whose one end is expanded to form socket for the purpose of joining. 3.6 Pipe Length The overall length of the pipe including integral socket. 3.7 Type Tests Tests carried out whenever a change is made in the composition and/or process of manufacture in order 64 when tested in accordance with the method given in IS 4669. 1 IS 14787 : 2000 5.2 The addition of the manufacturer's own rework material produced during the manufacture and work Table 3 Dimensions 01 the Socket End of Pipes (Clause 7.2) All dimensions in miUimeaa. testing of pipes complying with this standard is permissible upto 10 percent. No other reworked or recycled material shall be used. 6 COLOUR Colour of the pipe shall be white. 7 DIMENSIONS OF PIPES 7.1 Diameter and Wall Thickness T ON L Clauor Pipe ~~--!FF£CT~YE Socket Lenath,l Min -"'''''''''-'-'''~''''''~.'-.'' lENGTH----I ----I Max (4) (3) I--l-t ~~..,.~, I,;zl The mean outside diameter, outside diameter at any point and wall thickness shall be as given in Table 2. Table 2 Diameter and Wall Thickness of Pipe Alldimensionsin millimetres. Mean Socket I.D. at Mid Point of Socket Lenath D I ~ WaD thickneu at Socket,Sl Min Min (5) (1) (2) Class of Pipe Mean Outside Diameter ~ Outside Wall Thickneu IDdlvklual Diameter at Any Point ~ Value ~ CL IIOA CL 1108 CL 50 61 61 110.1 110.1 110.4 110.4 2.3 2.9 31 50.1 SO.3 1.7 Min Max (1) (2) 110.0 110.0 SO.O (3) Min (4) Max (5) Min (6) Max (7) CL IIOA CL 110B CL 50 110.4 110.4 SO.3 108.9 108.9 49.5 111.1 111.1 SO.S 2.5 3.2 1.9 3.0 3.8 2.3 NOTE - Only the manufacturer is equipped to measure the socket inside diameter. Since the socket lenath is · minimum only (no toleranceis given to this dimension), it is not practicalother than for the manufacturer, to establish the exact position of the mid-pointof the socket. He can therefore,tool up to measurehis own pipe but suchequipmentwill not necessarily give the correct figures for a pipe of other manufacturer. 7.1.1 The outside diameter of pipe shall be obtained by the method given in IS 12235 (Part 1). Wall thickness shall be measured by the method given in IS 12235 (Part 2). NOTE- Measurementof wall thicknessshall be done by taking atleastsix measurementof wall thicknessaround the pipe. 8 PHYSICAL CHARACTERISTICS 8.1 Visual Appearance 7.2 Socket Dimensions The internal and external surfaces of the pipe shall be smooth and clean, and free from grooving and other defects. The end shall be square with the axis of the pipe. 8.2 Pipe Stiffness Length of socket I, inside diameter of socket D 1 and the wall thickness at socket end S I of pipes shall be as given in Table 3. 7.3 Insertion Depth A circumferential band for the demarcation of the insertion depth of 40 ± 2mm for CL 110A and CL 110B pipes and 20 ± 2mm for CL 50 pipes from the plain end of pipe shall be made. The marking Pipe stiffness is a measure of the force required to compress a short piece between two rigid parallel plates at a controlled rate. Pipe stiffness at 5 percent deflection of inside diameter when tested as per Annex B, shall not be less than 0.25 MPa for CL 110A, 0.4 MPa for CL 1108 and 0.35 MPa for CL SO class of pipes. 8.3 Crush Resistance 8.3.1 The crush resistance test shall be done according shall be done in indelible ink/paint of colour as specified in 17.1.1. 7.4 Length of Pipe, L 7.4.1 Pipes shall be supplied in effective length, L, of to Annex C. 8.3.2 The deflection with load 'on' shall not exceed: +25 6 m each. Tolerance on length shall be _ 0 mrn. 7.4.2 Pipes may be supplied in other lengths if so a) 12 percent for CL 110A pipes, and b) 9 percent for CL 110Band class CL 50 pipes. 8.3.3 The deflection after the removal of load and after the stipulated recovery period shall not exceed 2 percent for all the three classes of pipes. agreed to between the manufacturer and the purchaser, 2 IS 14787 : 2000 8.4 Flatteninl When tested as per Annex 0, the specimen shall not show evidence of splitting, cracking or breaking. 8.5 Heat Distortion 80°C when determined in accordance with IS 6307. 9.6 Density Density of the pipe shall not exceed 1.50 g/crn! when determined in accordance with IS 13360 (Part 3/ Sec 1). When determined I i per Annex E, the sample shall not decrease in inside diameter by more than 7 percent for CL 110A pipes and 5.25 percent for CL 110B and CL 50 pipes. 8.6 Co-emcient of Friction When determined as per Annex F, the co-efficient of friction shall not exceed 0.2. This shall be a type test. 10 RESISTANCE TO CHEMICAL ACTION The test specimens shall not be affected by salt or by moderate contamination with acid or alkali and when tested by the method described in Annex J, the change in mass of specimen shall not exceed 0.1 percent. This shall be a type test. 8.7 Bending When checked as per Annex 0, the mandrel shall pass freely through the pipe. 11 ASH CONTENT When checked as per Annex K, the total ash content in the finished pipe sample shall not be more than 10 percent. 9 MECHANICAL PROPERTIES 12 TITANIUM DIOXIDE CONTENT When tested by the method described in Annex L, the titanium dioxide content in the finished pipe sample shall not be less than 2.5 percent. 9.1 Impact Strength When tested by the method described in Annex H, the sample shall not crack or split or be flattened permanently by more than 10 percent of its outside diameter. 13 FITTINGS 13.1 General Socket and bends of 30°, 45°, 60° and 90° for use with pipes for cable dueting shall be fabricated from the pipes meeting all the requirements stipulated in this standard. 9.1.1 In case of socket end pipes this test shall be carried out on the plain portion of the pipe taken atleast 100 mm away from the root of the socket. 9.2 Tensile Strength and Elongation The tensile strength and elongation at break shall not be less than 40 MPa and 30 percent respectively. The tests shall be conducted by the method specified in 13.2 Dimensions 13.2.1 Socket Length 'B' (see Fig. 1) between the two socket ends of the socket fitting shall not be less than 20 mm for CL 50 class and 35 mm for CL 110 A and CL 110 B classes. All other dimensions of sockets shall be as given in Table 3. IS 8543 (Part 4/Sec 1). 9.3 Reversion When tested by the immersion method described in 3 of IS 12235(Part 5), a length of pipe of approximately 300 mm shall not alter in length by more than 5 percent. In the case of socket and pipes, this test shall be carried out on the plain portion of pipe taken at least 100 mm away from the root of the socket. 9.4 Stress Relief This test shall be carried out for socket and pipes only. When tested by the method described in IS 12235 (Part 6), the test specimens shall not show blisters, excessive delamination or cracking of signs of weld line splitting. The weld line or lines may become pronounced during the test, but this shall not be deemed to constitute failure. 0, 9.5 Vicat Softening Temperature The Vicat softening temperature shall not be less than FIG. 1 SOCKET 3 IS 14787 : 2000 13.2.2 Bends leakage for atleast 15 minutes at 0.1 MPa pressure. 15 STORAGE Storageof pipesshall be in accordance with the relevant provisions of IS 7634 (part 1) and IS 7634 (Part 3). 16 SAMPLING CONFORMITY AND CRITERIA FOR Wall thickness and other dimensions of bends with plain ends, of 30°,45°, 60° and 90° shall be as given in Table 4. 14 HYDROSTATIC TEST FOR JOINT When tested in accordance with the procedure given in Annex M, the assembly shall not show any sign of The sampling procedure for the pipes and fittings to Table 4 Dimensions or Bends (Clause 13.2.2) Alldimensionsin millimetres. v (a) 30° Bend (b) 45° Bend (c) 60° Bend i. (d) 90° Bend Ous waUTbkkDaI (Mill) L L (Min) (Only lor PlaID Ends) (3) R (Milt) Y (Milt) tor ....... 30° 45° (6) 2~9 2~9 ~ W W (8) (1) (2) (4) (5) (7) 346" 346 1~7 CL 110A CL 110 B CL .50 2.S 110 110 330 330 I~O 173 173 79 S19 S19 3.2 1.9 SO 118 236 4 IS 14787 : 2000 be adopted and the criteria for conformity shall be as given in Annex N. Class Colour of Band 110A 110B 50 Blue Green Blue 17 MARKING 17.1 Each pipe at either end and fitting at an appropriate place, shall be marked in indelible inkl paint with the following information: 17.2 BIS Certification Marking a) Manufacturer's name or trade-mark, b) Class of pipe/fitting, c) Batch number, and d) Cable Duct. 17.1.1 Pipes and fittings of CL 110A and CL 110B shall also be provided near the end with the following circumferential colour bands, as appropriate so as to distinguish the class of pipe/fittings: The pipes and fittings may also be marked with the Standard Mark. 17.2.1 The use of the Standard Mark is governed by the provisions of the Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions under which a licence for the use of the Standard Mark may be granted to the manufacturers or the producers may be obtained from the Bureau of Indian Standards. ANNEXA (Clause 2) LIST OF REFERRED INDIAN STANDARDS IS No. 456 : 1978 1070 : 1992 4669 : 1968 Title IS No. TIlle 4905 : 1968 6307 : 1985 7634 Code of practice for plain and reinforced concrete (third revision) Reagent grade water (third revision) Methods of test for polyvinyl chloride resins Method of random sampling Specification for rigid PVC sheets (first revision) 12235 (Part 1) : 1986 (Part 2) : 1986 Code of practice for plastic pipe work for potable water supplies: (Part 1) : 1975 Choice of materials and general recommendation (Part 3) : 1975 Laying and jointing of UPVC pipes Methods of testing of plastics: Part 4 8543 (Part 4/ Sec 1) : 1984 Short term mechanical properties, (Part 5) : 1986 (Part 6) : 1986 13360 (Part 3/ Sec 1) : 1995 Section 1 Determination of tensile properties Method of test for unplasticized PVC pipes for potable water supplies: Method of measurement of outside diameter Measurement of wall thickness Reversion test Stress relief test Plastics - Methods of testing: Part 3. Physical and dimensional properties, Section 1 Determination of density and relative density of non-cellular plastics IS 14787 : 1000 ANNEXB (Clause 8.2) PIPE STIFFNESS TEST B-1 TEST SPECIMEN and locate the pipe section with ita longitudinal axis parallel to the bearing plates and centre it laterally in the testing machine. With the deflection indicator in The specimen shall be a piece of pipe of ISO :t 3 nun in length. B-2 APPARATUS A properly calibrated compression testing machine (see Fig. 2) of the constantrateof cross head movement type with deformation indicator. Deflection speedshall be 5 ± 1 mm1min. B-3 CONDITIONING place, bring the upper plate into contact with the specimen. Load the specimen to produce S percent .deflection of the inside diameter of the specimen within2 minutes. Recordload (1) and deflection(t\y) measurements. B-S ASSESSMENT OF RESULT B-S.l Calculate the pipe stiffness by usingthe formula F/~y, where F is the load in KNlm length and fAy the vertical pipe deflection, in mm. B-5.2 The specimen when tested as above, shall meet the requirements given in 8.2. Condition the specimen for atleast 4 hours in air at 27 ± 2°C. B-4 PROCEDURE Determinethe length and insidediameterof specimen FORCE (F) . "~~-PLATE - DEFLECTION MEASUREMENT TAKEN AT MID OF TEST PIECE FlO. 2 SCHEMATIC DIAGRAM OF SPECIMEN LoADING 6 IS 14787 : 2000 ANNEXC (Clause 8.3.1) CRUSH RESISTANCE TEST c-i TEST SPECIMEN The specimen shall be a piece of pipe of 150 :t: 3 mm in length. Table 5 Load for Crush Resistance (Clause C-4) ClauofPlpe C-2 APPARATUS CL 110A CL IIOB CL so Load,FlnN 3S0 450 3~0 A properly calibrated compression testing machine of the constant rate of cross head movement type with deformation indicator. C·S ASSESSMENT OF RESULT The specimen when tested as above, shall meet the C-3 CONDITIONING Condition the specimen for atleast 4 hours in air at 27 ± 2°C. C-4 PROCEDURE requirements given in 8.3. F Determine the inside diameter d, of specimen of the specified length. Locate the pipe section with its longitudinal axis parallel to the bearing plates and centre it laterally in the testing machine (see Fig. 3). With the deflection indicator in place, bring the upper plate into contact with the specimen and load it in SON steps, halt for one minute and note the deflection of inside diameter each time till the final load is attained as shown in Table 5. Remove the load and allow the specimen to recover for 5 min. Again measure the deflection inside diameter. Calculate the percentage of deflection to original inside diameter both with the final load 'on' and after 5 min of the removal of the load. T ON FlO. 3 TESTING OF EXTERNAL LOADING PROPERTIES OP PIPES BY PARALLEL PLATE LOADING ANNEXD (Clause 8.4) FLATTENING TEST D-I TEST SPECIMEN The specimen shall be a piece of pipe of 50:~ nun in length. D-2 APPARATUS A properly calibrated compression testing machine of the constant rate of cross head movement type with deformation indicator. D-3 CONDITIONING Condition the specimen for atleasr 4 hours in air at 27:t: 2°C. D-4 PROCEDURE The specimen is required to be flattened diameterica11y in a parallel plate device, until the distance between the plates is 50 percent of the external diameter of the pipe. For this purpose determine the outside diameter of each specimen and locate the pipe section with its longitudinal axis parallel to the bearing plates and centre it laterally in the testing machine. With the deflection indicator in place, bring the upper plate into contact with the specimen and press the pipe gradually to SO percent of the outside diameter of the specimen. Hold for one minuteand then remove the load. Inspect the specimen for evidence of any splitting, cracking or breaking. D·S ASSESSMENT OF RESULT The specimen, when tested as above, shall meet the requirements given in 8.4. 7 IS 14787 : 2000 ANNEXE (Clause 8.5) HEAT DISTORTION TEST E-I TEST SPECIMEN The specimen shall be a piece of pipe of 75~~ mm in length. E-2 APPARATUS a) A properly calibrated electrically heated air oven with circulating fan and thermostatic control to maintain temperature up to 100°C within an accuracy of lOC. b) the testing apparatus, with the dead weight as given in Table 6. Place the whole assembly inside the air oven and maintain temperature of oven at 60 ± lOC for 48 h. Measure the inside diameter in loaded hot condition and calculate the percentage decrease in inside diameter. Table 6 Load for Heat Distortion Class of Pipe CL IIOA CL 1108 eLSO DeadWeJpt JON 4~ Parallel plate press with weight as per 'Table 6. N 30N E-3 PROCEDURE Determine the inside diameter of each specimen and locate the pipe section with its longitudinal axis parallel to the bearing plates and centre it laterally in E-4 ASSESSMENT OF RESULT The specimen when tested as above, shall meet the requirements given in 8.5. ANNEXF (Clause 8.6) CO-EFFICIENT OF FRICTION TEST F-I TEST SPECIMEN Ducts samples for test shall be selected at random and cut into 1 500 mm lengths. F-3 CONDITIONING The specimen shall be conditioned for 40h at 27 ± 2°C and 65 ± 5 percent relative humidity. F-2 APPARATUS a) The variable incline plane as shown in Fig. 4 shall be used for this test. b) The sled used in this test shall meet the following requirements: 1) It shall be made (rom cold-rolled steel stock and have a standard commercial finish; 2) The ends shall be slightly bevelled (0.8 mm Max.) 3) The weight shall be 1.7 ± 0.02 kg; 4) The length shall be under 150 ± 10 mrn: 5) The diameter shall be 40 ~g.1 mm. F -4 PROCEDURE F-4.1 Test specimens shall be cleaned and marked at six equidistant points around the circumference. They shall be placed on the incline plane in such a manner that there will be no motion of the duct relative to the plane during the test. F-4.2 The sled shall be placed inside the test specimen approximately 25mm from the upper end. The angle of the incline plane (angle a) shall be increased at a constant rate until the sled just begins to move. The angle shall be measured and recorded 8t this point. F -4.3 The procedure in F-4.2 shall be repeated with the specimen rotated 1/6,th of a turn (making use of the markings applied in F-4.1) for each of S additional tests. The specimen shall then be turned end for end of the incline plane, and the test repeated to obtain 8 IS 14787 : 2000 SPECIMEN VARIABLE INCLINE PLANE All dimensions in millimetres. FlO. 4 ApPARATUS FOR STATIC FRICTION CO-EFFICIENT DETERMINATION additional six readings. Two additional duct samples shall be subjected to the same test. F-4.4 Prior to each individual test, the sled shall be wiped clean. F-4.5 The tangent of the angle (a) for each test shall be' calculated. The value obtained is the static coefficient of friction. The average of all the static friction co-efficient readings obtained shall be calculated and compared with the requirement. ANNEXG (Clause 8.7) BENDING TEST G-l TEST SPECIMEN Complete length.of 6 m of pipe, bent through a radius of 11 m. G-2 APPARATUS Mandrels made of wood or metal of dimensions given in Table 7. G~3 PROCEDURE Table 7 Dimensions of Mandrels Length or Maodrel,mm (Clause G-2) Nominal Diameter of Pipe, nun 110 Outside Diameter of Mandrel 99 300 300 SO 43 G-4 ASSESSMENT OF RESULT The mandrel shall pass freely through the curved pipe. Pass the mandrel through the curved pipe. 9 IS 14787 : 2000 ANNEXH (Clause 9.1) IMPACT RESISTANCE TEST H-l TEST PIECES The test pieces of ISO ± 10 mm length each shall be cut from pipe selected at random from the batch or the series of pipe to be tested. The cut ends shall be square to the axis of the pipe, clean and free from damage. 0-2 APPARATUS accommodate the falling weightand allowing it to fall freely in the vertical plane. c) The falling weights of mass given in Table 8 shall have a hemispherical striking surface of 25 mm diameter. The striking surfaces shall be free from all imperfections. A falling weight testing machine incorporating the following basic components (see Fig. 5) shall be used. a) Main frame, rigidly fixed in the vertical position. Guide rails, fixed to the main frame to d) Test piece support, consisting of a 1200 veeblock of length atleast 200 mm, postionedso that the point of impact of the falling weight is in the axis of the vee-block or not more than 2.5 mm from the axis. e) Release mechanism, such that the falling weight can fall through a height which can b) -~1-1' t:e1 ·· L .. 11 ~ CHANNEL SUPPORT GRADUATED SCALE STRIKER WEIGHT FlO. 5 FALLINO WEIOHT TESTING MACHINE 10 IS 14787 : 2000 be adjusted up to 2 m, as measured from the diameter of the pipe. top surface of the test piece. H-3 CONDITIONING Condition the test pieces at 27 ± 2°C for one hour before the test 8-4.3 Inspect the tested piece for any crack or split. Check outer diameter of the pipe at the flattened portion and record the reading. Calculate the permanent flattening of the outer diameter. 8-4 PROCEDURE H-4.1 The mass of the falling weight and the fall height appropriate to the pipe size shall be selected from Table 8. Table 8 Mass and Fall Helabt of Striker for Impact Resistance Test [Clauses H-2(d) and H-4.1] Claaol Pipe Mass of FalllDl Weight (kg), Percent 6±0.S% 10±0.S% Fall Hel&ht (mm) 8-4.2 Subject the test piece to a single blow by allowing the weight to fallon to the test piece. The line of fall of the striker shall coincide with the CL IIOA CL 1108 1 SOO± 10 1 500 ± 10 I 500± 10 CL SO S ±0.5% ANNEXJ (Clause 10) TEST FOR RESISTANCE TO CHEMICAL ACTION r-r TEST SPECIMEN The test specimens shall be cut from the pipe and shall have a length of 50 ::t: 3mm. J-2 PROCEDURE For test in each solution as mentioned hereinunder below, three specimens each of 50 ::t: 3mmlength taken from three different pipes shall be cleaned, wipe, dried and weighed and then totally immersed without prior conditioning in each of 10 percent aqueous solution of sulphuric acid, hydrochloric acid, sodium hydroxide, sodium chloride and ammonium hydroxide at ambient temperature for 72 h separately. After the specified time, the specimens shall be moved from each solution, washed in running water for 5 minutes, dried with a clean cloth and reweighed immediately. J-3 ASSESSMENT OF RESULT The average change in mass of all three specimen in each solution shall not exceed the value given in 10. 11 IS 14787 : 2000 "ANNEXK (Clause 11) ASH CONTENT TEST x-i TEST SPECIMEN The specimen shall be a small piece of pipe about 20-50 g mass. K-2 APPARATUS K-3.3 Burn on flame in platinum crucible. K-3.4 Transfer to muffle furnace. K-3.5 Keep it at 8S0 ± 10°C for 3 h or longer and repeat heating/cooling till content weight is obtained. Platinum crucible, b) Weighing balance, c) Muffle furance, and d) Desiccator. a) K-3.6 Cool.and put in desiccator K-3.7 Weiah the ash content (M 2) as in K-4 ASSESSMENT OF RESULT K.3.~. K-3 PROCEDURE K-3.1 Dry the sample for 2 h at 105 ± 3°C. K-3.2 Weigh and record the mass of the sample of about 20-50 g (M I ) to an accuracy of 1 mg. From the initial weight (M I ) of specimen and final weight of residue (M 2)' calculate the percentage of ash content. The result shall meet the requirement of ash content percentage as specified in 11. M2 Percentage ash content = M x 100 1 ANNEXL (Clause 12) DETERMINATION OF TITANIUM DIOXIDE t-r PRINCIPLE A sample ofUPVC pipe or fitting is ignited in a furnace and the resulting ash is boiled with sodium sulphate and sulphuric acid. This solution is diluted with distilled water and the concentration of titanium dioxide is determined by spectrophotometry. L-2.2 Apparatus L-2.2.1 Ultra violet/visible range spectrophotometer to read at 408.0 ± 0.2 nm. L-2.2.2 Muffle furnace capable of being maintained at 850 ± 10°C. L-2.2.3 Analytical balance with 0.1 mg accuracy. L-2 REAGENTS AND APPARATUS L·2.1 Reagents L-2.2.4 Hotplate L-2.2.5 Porcelainor Silica Crucibles - 50 m1 volume. L-2.2.6 Thermometers capable of indicating the required temperatures to an accuracy of ±2°C. Except where otherwise specified, only reagents of recognized analytical grade and water conforming to IS 1070 shall be used. L-2.1.1 Sulphuric Acid (density 1 840 kg/m') L-2.2.7 Standard Laboratory Glassware L-3 PREPARATION OF THE TEST SAMPLE L-2.1.2 Anhydrous Sodium Sulphate L-2.1.3 Hydrogen Peroxide (30 percent) L-2.1.4 Sulphuric Acid 10 percent solution (1 part concentrated sulphuric acid added to 9 parts of distilled water). The bulk sample shall be prepared by finely milling a suitable length of pipe or section of fitting and then mixing it uniformly. No pre-conditioning of the test samples is required. Test portions for analysis are randomly selected from the bulk sample NOTE- Fragments or pieces obtained from impact test may also be used. L.2.1.S Rutile titanium dioxide of average assay 97.2 percent titanium dioxide. 12 IS 14787 : 2000 L-4 PROCEDURE L-4.1 Standards Preparation L-4.1.1 Weigh out approximately 100 mg of titanium dioxide R-PP2S to the nearest 0.1 mg and record the mass determined, Transfer the titanium dioxide to a 250 ml beaker and add 1.S g of anhydrous sodium sulphate and 50 ml of concentrated sulphuric acid. Add boiling chips, cover the beaker with a watch glass, and heat to boiling point on a hotplate until the solid material has dissolved, L-4.1.2 When the solution has cooled, add to it approximately 100 ml of distilled water, stirring continuously. After cooling, transfer the solution to a 500 ml volumetric flask containing approximately 200 ml of distilled water, and make up to the mark with distilled water. L-4.2 Preparation L-4.3.5 Transfer the crucible to a muffle furnace maintained at 850 ± 10°C and ignite to a white or pale grey ash (This takes approximately 4 h). L-4.3.6 Allow the crucible to cool, then add 1.5 g of anhydrous ammonium sulphate and SO ml of concentrated sulphuric acid, followed by boiling chips. Cover the crucible with a watch glass and bring the contents to boil on the hot plate. A clear solution should result. NOTE- Sometimes the solution is sliihtly cloudy, but this has no effect on the final result. L-4.3.7 Allow the crucible to cool and then carefully transfer the contents of the beaker containing 200 ml of distilled water. Thoroughly wash the crucible with further aliquots of distilled water. or the Standard Curve L-4.3.8 After cooling, transfer the solution to a 500 ml volumetric flask and make up the volume (VI) with distilled water. L-4.4 Determination or Titanium Dioxide L-4.2.1 Prepare standard titanium dioxide solutions in the following concentration: 0.00, 0.02, 0.04, 0.06, 0.08, and 0.10 mg/ml by transferring 0,5.0, 10.0, 15.0, 20.0 and 25.0 ml of the standard solution into separate 50 ml volumetric flasks and dilute almost to volume with 10 percent sulphuric acid solution. Add 2.0 ml of 30 percent hydrogen peroxide solution to each of the volumetric flasks, dilute to volume with.. 10 percent sulphuric acid solution, shake and leave a dark cupboard for- approximately 30 minutes, with occasional further shaking. L-4.4.1 Transfer 20 ml [V 3 ] of the sample solution prepared in L-4.3.8 to a 50 ml volumetric flask and dilute almost to volume with 10 percent sulphuric acid solution. Add 2.0 ml of 30 percent hydrogen peroxide, make up to volume [V 2] with 10 percent sulphuric acid solution, shake and leave in a dark cupboard for 30 minutes, with occasional further shaking. L-4.4.2 Determine the absorbance of the sample as in L-4.2.2. Should the absorbance fall outside the calibration range, repeat the determination using a suitable aliquot of sample solution. L-4.4.3 Determine the concentration [C], in rng/ml, of titanium dioxide in the final solution, from the standard curve. L-4.2.2 Using the spectrometer, determine the absorbance of each solution at a wave length of 408 nm using 1.0 cm cells with a blank of 2.0 ml 30 percent hydrogen peroxide in SO milO percent sulphuric acid solution. L-4.2.3 From these results plot a standard curve (absorbance versus concentration in mg/ml). L-4.3 Sample Preparation L-4.3.1 For samples obtaining in the region of 5 percent titanium dioxide, weigh out approximately 1.5 g of the test portion. L-4.3.2 For sample containing in the region of 0.6 percent titanium dioxide, weigh out approximately 3.0 g of the test portion. L-S CALCULATIONS -, Titanium dioxide content shall be calculated as follows: Titanium dioxide content . in percent by mass of pipe or fitting where = concentration of titanium dioxide in the final solution in mg/ml, M = mass of test portion sample in rng, VI = total volume of sample solution in ml C V2 = L-4.3.3 Weigh the appropriate amount of sample (Step L-4.3.1 or L-4.3.2 above) to the nearest 0.1 mg and transfer into a SO ml porcelain or silica crucible and record the mass [M]. L-4.3.4 Heat the crucible, gently at first, with a Bunsen burner until charring is complete and the evolution of copious white fumes has ceased. 13 = volume of solution prepared in ml (50), (500), and VJ = volume of solution transfered out of total volume of sample solution in ml (20). IS 14787 : 2000 ANNEXM (Clause 14) HYDROSTATIC TEST FOR JOINT M-I TEST APPARATUS a) Apparatus, to which the test assembly can be connected, allowing a controlled water pressure to be applied. Precision pressure gauge. to cure for at least 4 h at ambient temperature. M-3 PROCEDURE Connect the test assembly to the precision pressure gauge and the test apparatus. Allow water to enter the test assembly. Gradually increase the internal water pressure of the test assembly to 0.1 MPa and maintain this pressure for 15 minutes. observe for any leakage, swelling. b) M-2 TEST ASSEMBLY Test assembly shall be made by joining two sections of pipe, each of at least 300 m long using socket andl or bend(s) with solvent cement ensuring minimum insertion depth (see 7.3) at the joint. Allow the joint M-4 ASSESSMENT OF RESULTS The pipe assembly shall meet the requirement of 14. ANNEXN (Clause 16) SCALE OF SAMPLING AND CRITERIA FOR CONFORMITY N-t ACCEPTANCE TEST N-t.t Acceptance tests are carried out on samples selected from a lot for the purpose of acceptance of the lot. integral part of Nln, N being the number of pipes in the lot and n, the number of pipes in the sample. Every rth pipe so counted shall be withdrawn so as to constitute the required sample size. N-l.4~3 The number of pipe given for the first sample of col 3 of Table 9 shall be taken from the lot and examined for requirements given under 6, 7, 8.1 and 8.7. A pipe failing to satisfy any of these requirements shall be considered as defective. The lot shall be deemed to have satisfied these requirements, if the number of defectives found in the first sample is less than or equal to the corresponding acceptance number given in col 5 of Table 9. The lot shall be deemed not to have met these requirements, if the number of defectives found in the first sample is greater than or equal to the corresponding rejection number given in col 6. If however, the number of defecti ve found in the first sample lies between the corresponding acceptance and rejection number given in col 5 and 6, a second sample of the size given in col 3 of Table 9, shall be taken and examined for these requirements. The lot shall be considered to have satisfiedthese requirementsif the numberof defectives found in the cumulative sample is less than or equal to the corresponding acceptance number given in col S otherwise not. N-I.2 Lot All pipes and fittings, in a single consignment, of the same class and manufactured under essentially similar conditions shall constitute a lot. N-t.3 For ascertaining conformity of the lot to the requirements of the specification, samples shall be tested from each. lot separately. N-l.4 Colour, Dimension, Visual Appearance and Bending N-l.4.t The number of test samples to be taken from a lot shall depend on the size of the lot and shall be in accordance with Table 9. N-t.4.2 The pipes shall be selected at random from the lot and in order to ensure the randomness of selection, a random number table shall be used. For guidance and use of random number table, IS 4905 may be referred. In the absence of a random number table, the following procedure may be adopted. Starting from any pipe in the lot, count them as 1, 2, 3, etc up to r and so on, where r is the 14 IS 14787 : 2000 Table 9 Scale of Sampling and Criteria for Conformity for Colour Dimensions, Visual Appearance and Bending (Clauses N-l.4.1 and N-l.4.3) Number 01Pipes Sample In the Lot No. Sample Cum- Accept- RejecdOD Size ulatlve anee Sample Size (1) Up 'to No. No. (6) (2) 150 200 First Second First Second First Second First Second First Second First Second First Second (3) 13 13 20 (4) 13 26 20 151 201 501 1201 to (5) 0 1 0 3 2 2 3 shall be deemed to have met these requirements if the number of defectives found in the first sample is greater than or equal to the corresponding rejection number given in col 6 of Table 10. If however, the number of defecti ves found in the first sample lies between the corresponding acceptance and rejection number given in col 5 and 6, a second sample of the size given in col 3 shall be taken and examined for these requirements. The lot shall be considered to have satisfied these requirements if the number of defectives found in the cumulative sample is less than or equal in the corresponding acceptance number given in col 5 otherwise not. Table 10 Scale of Sampling and Criteria for Conformity for Pipe Stiffness, Crush Resistance, Flattening, Heat Distortion, Impact Strength, Tensile Strenght and Elongation, Reversion, Stress Relief, Vicat Softenlna Temperature, Density, Ash Content and Titanium Dioxide Content (Clauses N-l.5.1 and N-l.5.2) Number or Pipes Sample In the Lot No. Sample Cumu- Accept- RejeSize Iatlve ance CtiOD Sample No. No. 20 32 32 50 to 500 1 200 3200 40 32 64 50 100 80 160 12.5 4 1 4 4 5 to to 50 80 80 125 2 6 3 5 7 7 9 8 5 3 201 to 10 000 9 10001 to 35 000 125 200 200 250 200 400 12 7 18 13 11 19 N-l.5 Pipe Stiffness, Crush Resistance, Flattening, Heat Distortion, Impact Strength, Tensile Strength and Elongation, Reversion, Stress Relief, Vicat Softening Temperature, Density, Ash Content and Titanium Dioxide Content N-l.5.1 The lot having satisfied the requirements for colour, dimensions, visual appearance and bending shall be tested for pipe stiffness, crush resistance, flattening, heat distortion, impact strength, tensile strength and elongation, reversion, stress relief, vicat softening temperature, density, ash content and titanium dioxide content. N-l.5.2 For this purpose a sub-sample from those tested under N-l.4 shall be drawn as given for the first samples of col 3 of Table 10. The lot shall be deemed to have met the requirements given in the specification, if the number of defectives found in the first sample is less than or equal to the corresponding acceptance number given in co) 5 of Table 10. The lot stu (1) (2) 1000 (3) (4) ~ (5) (6) Up to First Second 5 5 8 8 13 0 1 2 2 10 1001 to 3000 First Second 802 16 1 2 3001 to 10000 First Second 13 26 0 1 2 2 Above 10000 First Second 13 20 20 20 40 0 3 3 4 N-2 TYPE TEST Type test indicated in 8.6 and 10 shall be conducted whenever a change is made in the composition method of manufacture or a new size of pipe, fitting is to be introduced. However, if no change is envisaged at least one sample from each size shall be subjected to type tests once in six months. 1.5 IS 14787 : 2000 ANNEXP (Foreword) COMMITTEE COMPOSITION Plastic Piping System Sectional Committee, CED 50 Chainnall SHRJ Repnsenling K.PRA8HADA RAo Members Engineer-in-Chief'sBranch(Ministryof Defence), New Delhi Central Public Health and Environment Engineering Organization (Ministryof Work andHousing),New Delhi AssiSTANT ADVISOR(,AlttnuJlt) SHRJ L. K. AOARYIAL SHRJ SUDESH KUMAR SHARMA (Alltmate) SHRJ D. N. BHAnA Central Building ResearchInstitute(CSIR), Roorkee MTN~ New Delhi SHRJA. K. NAOAl (Alt~matt) SHRJ S. K. CHHABRA DelhiWaterSupply and Sewage Disposal Undertakings,Delhi Central Public WorksDepartment, New Delhi U.P. Jal Nigam, Lucknow Public Health Engineering Department, Government of Kerala, Thiruvananthapuran Finolex IndustriesLimited,Pune L. N. KAPooa (Altema/t) CHIEF ENOiNEBR (0Esi0Ns) SUPWNTENDlNO ENOiNEBR (Al~rnatt) SHRI CHiEf ENo1NEER (PPR&D) MANAGER (Altemalt) DE'JVT'Y CHIEF ENGINEER DR DHANANJAY RAo SHRJ V. V. KAND£KAJl (AUtmale) MATEJUAtS DIRECTOR (MATERIALS MANAOEMENf) SUPERJNTENOlNO ENolNEEa (DI:sIoNS) ( AItt male ) SHRl SHRJ P. DelhiDevelopmentAuthority,New Delhi Public HealthEngineeringZone, Government of Kamataka Chennai MetropolitanWater Supply and Sewerage Board, Chennai BrihanmumbaiMahanagar Palin. Mumbai Tamil Nadu WaterSupply and Drainage Board, Chennai GutAM AHMw M. HARINAni SHRJ G. SHENBAOANANDAM (AlItrnalt) HYDRAUUC ENoINEat DEPUTY HYDRAUUC ENGINEER (AItt male) ENoINEat-IN-CHlEP JOlNT CHlEf ENoINEEa (MATERIALS) (Alttmalt) SHRJ K.L. KHANNA SHRI M. S. Dtrrr(Altemate) MANAGING DIRECTOR LT-eOL P. K. MASAND SHRJ R. N. SINHA,AEE(AUtmalt) SHRI P.C. MOHAPATIlA SHJU S. NARAYANASWANY SHRJ L. JAOANAmAN (Allematt) SHRJ NAJt.lNDea KUMAa SHRJ S.K. KAlLA (AJltmalt) DR R. PARMASIVAM StWMATI S. S. DHAOE (ALttrnalt) SHRJ N.P. PATEl. SHRI V.8. PAbtAa (Alternate) ORS.M.PAm. EPC Industries Pvt Ud, Mumbai UniplasIndia Ltd, New Delhi Ministryof Defence.New Delhi Officeof the Chief Engineer,Public Health. Bhubaneshwar,Orissa Jain IrrigationSystem Ltd. Jalgaon Engineer-in-Chiefs Branch(Ministryof Defence),New Delhi NationalEnvironmentalEngineeringResearchInstitute (CSIR), Nagpur AhmedabadMunicipalCorporation, Ahmedabad Instituteof Co-operativeManagement,Ahmedabad DirectorateGeneralof Supplies andDlsposals,New Delhi Housingand Urban DevelopmentCorporation UQ, New Delhi BuildingMaterials & TcchnolOlY Promotion Council, New Delhi In personal capacity (657, Sector A, PocketC, Vasant Kunj, New Delhi -}}OO70) Calcutta Municipal Corporation. Calcutta' Carbon Everflow Limited, Nuik DR M.K. PANDEY(Altenuut) SHRJ RAIBNDEa PRAsAD SHRJ N. K. KAuSHAL(AUemate) OaP.S. RANA SHRJ K. SUBRAMANIAN (Altemau) RmtEsENTA11VE SHIUO. P. RATRA DR D. K. SANYAL StwMAn SEmu. VAJaVA SHRJ A. SAWANTA(Aluntale) SHRI C. ~ SHAaMA SHJu V. K. SHAItMA SHRJ N. N. SHAH (Altemate) RITES, NewDelhi NOCIL,Mumbai (CDlltiluud on pag. 1- 16 IS 14787 : 2000 (Continued/rom page 16) Memebrs SHRJG. K. SRINIVASAN Representing Vinplex India Pvt Ltd, Chennai SHRJ P SAIVENKATAPRASAD (Altemale) SHRJ KANwAR A.SINOH SHRJ S. SUNDARAM SHRJ H. N. PHADNES (Alternate) SlJPEJUNT£N[)N) ENoINEER (MM) ExEctmvE ENGINEER (MM) iAltemare) SHRI SURENDRA NA11i SHRI A. K. NAGAR (Altemate) In personal capacity (196, Gulmohar Enclave, New Delhi-l100(9) KWH Pipe (India) Ltd, Mumbai Public Health Engineering Department, Government of Rajasthan. Jaipur Department of Telecommunications, New Delhi Reliance Industries Ltd, Mumbai Central Institute of Plastics Engineering and Technology,Chennai The Supreme Industries Ltd, Mumbai DR Y. B. Vxsuoeo DR K. SJADHAV (Allema/t) DR VUAJKUMAR (Alttmalt) SHRJ WlUJAM MENOONEA SHRJ G. K. SAXENA (Alttrnatt) DR SANlA AKHTAR SHRI VlNOD KUMAR, Director and Head (Civ Engg) Director General, BIS (Ex-officio Member) Member-Secretary SHRJ R. K. GUPTA Joint Director (Cie Engg), BIS Panel for UPVC Piping System for Water Supply, CED 50 : P9 Convener SHRI G. K. SRINIVASAN Vinplex India Pvt Ltd, Chennai Laxmi PVC Products Pvt Ltd, Chennai (Altemale) Members SHRI R. ANANTHA NARAYANAN SHRJ N. R. KJusHNASWAMY DR DHANANJAY RAo SHRJ A. R. DESHPANOO (AlJ~male) E'.NorNEER-IN-CHIfP SHRI P. M. HARtNATIi SHRJ G. SHEMBAOANANDAM tAltemaie) HYDRAUUCENolNEER SHRI Finolex Industries Limited, Pune Tamil Nadu Water Supply and Drainage Board, Chennai Chennai Metropolitan WaterSupply and Sewage Board, Chennai Brihanmumbai Mahanagar Palika, Mumbai Jain Irrigation System Ltd, Jalgaon L. JAGANNAlllAN (Alternate) SHRJ S. NARAYANASWAMl SHRI TUSHAR S. PANSARE G. GAWAND (A/temale) Mis Amar Plastics, Mumbai Engineer-in-Chief's Branch (Minstry of Defence), New Delhi Delhi WaterSupply and Sewage Disposal Undertaking, New Delhi Building Materials and Technology Promotion Council, New Delhi In personaJ capacity (657, Sector A, Pocket C. Vasant Kunj, New Delhi - ))0070) Central Public Works Department, New Delhi The Supreme Industries Ltd, Mumbai SHRJ VlNlT SHRl K. PRABHAKARA SHRJ S. PRAKASH RAo REPRFSENTAllVE SHRJ O. P. SHRJ tuTU H. C. MATAJ (Alltrnale) ENolNEER (S&S) ExEamVE ENOlNEER-1 (5&S) (Alternate) SHRJ W D.lJAM MENDONEA SHRI G.K. SAXENA (Alternate) SUPERIN1r.NDlNO 17 Bureau of Indian Standards BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious development of the activities of stardardization, 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 (Publication), 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 'SIS Handbook' and 'Standards: Monthly Additions'. This Indian Standard .has been developed from Doc: No. CEO 50 (4636). 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: 323 0131,323 3375,3239402 Regional Offices: Central Eastern Northern Southern Western Branches Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI 110002 1/14 C.LT. Scheme VII M, V.LP. Road, Kankurgachi CALCUITA 700054 SCO 335-336, Sector 34-A, CHANDIGARH 160022 C.LT. Campus, IV Cross Road, CHENNAI 600113 Manakalaya, E9 MIDC, Marol, Andheri (East) MUMBAI 400093 AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PAlNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. Printed at Simco Printing Press, Delhi Telegrams: Manaksanstha (Common to all offices) Telephone 323 76 17,323 3841 337 84 99,337 85 61 { 337 86 26,337 91 20 60 38 43 { 60 20 25 235 02 16,235 04 42 { 235 15 19, 235 23 15 832 92 95, 832 78 58 { 832 78 91,832 78 92