Document nmx4bZNJqkrw06oe5Mmo6NoVX

Designation: C 608 - 76 America" National Standard AlflS 9-1974 AporovtO Dec 23 1974 By American National Standards inatituta AMERICAN SOCIETY BOR TESTING AMO MATERIALS lilt Race St.. RMledaipnie, Pa.. 19103 Reprinted from the Annual took ol ASTM Slander**. Coovrfht ASTM If not lined in the currant comdmed Indaa. wtil afifiair m tha nait edition. Standard Specification for ASBESTOS-CEMENT TRANSMISSION PIPE1 This Standard ts issued under the fixed designation C 668: the number immediately following the designation indicates the year of original adoption or. in the case of revision, the year of last revision. A number in parentheses indicates the year of iast reapproval 1. Scope 1.1 This specification covers asbestos-ce ment transmission pipe intended for use in transmission systems that carry fluids under pressure. A transmission system consists of pipe lines which convey fluids from their source to a point of distribution or discharge. The system is characterized by relatively steady flow and few appurtenances, thereby permitting reasonable hydraulic analysis, in cluding surge analysis. Note I -The values stated in U S. customary units are 10 be regarded as the standard. The metric equivalents of U.S. customary units may be approx imate. Note 2--This specification is issued for product standardization and purchasing purposes only, and does not include requirements for installation or the relationships between operating conditions and the strength characteristics of the various classifications pipe. The purchaser is cautioned that he must rrelate installation and operating conditions with .nt specified characteristics of the pipe. 2. Applicable Documents 2.1 ASTM Standards: C 500 Testing Asbestos-Cement Pipe.1 D 1869 Specification for Rubber Rings for Asbestos-Cement Pipe.' 3. Class!Ocado 3.1 Asbestos-cement pipe furnished under this specification shall be manufactured in Classifications JO. 35. 40. 45, 50. 60. 70. 80. and 90. The classifications represent one tenth of the minimum hydrostatic strength. 3.2 The types of pipe shall be known as Type I and Type II corresponding to the chemical requirements in Section 7 of this specification. Note 3--To assist the purchaser in choosing the type of pipe most suitable for his use. guidelines for the definition of aggressiveness of water and of soil environments for selection of the proper type of asbestos-cement pipe are covered in Sections 19 to 25 of Methods C 500. 4. Definitrous 4.1 pipe--asbestos-cement transmission pipe as defined in Sections I, 3. and 5. 4.2 coupling--a section for joining asbes tos-cement pipe that, when properly installed with the proper accessories, develops a joint equivalent in strength and serviceability to the pipe sections. 4.3 purchaser-- the actual purchaser of the pipe or his authorized agents acting within the scope of the duties entrusted to them. 4.4 lot--A lot as used herein for pipe 21 in. in diameter and smaller is defined as each 300 lengths of pipe or less, of identical class and size manufactured on each machine dur ing a 24-h period. A lot as used herein for pipe larger than 21 in. in diameter is defined as each 300 lengths of pipe or less, of identical class and size manufactured on each machine during a period of consecutive working days not exceeding 7 days. 5. Manufacture 5.1 Asbestos-cement pipe furnished under this specification shall be composed of an inti mate mixture of portland cement or portland blast-furnace slag cement and asbestos fiber ' This specification is under the jurisdiction of ASTM Committee C-17 on Asbestos*Cemem Products Current edition approved May 28. 1976. Published July 1976 Originally published as C 668 - 70. Last previous edition C 668 - 73b. * Annual Book oj ASTM Standards, Part 16. 1 CTD014738 with or without silica; or it shall be composed of portland-pozzolan cement and asbestos fi ber. The mixture shall be free of organic addi tives. The material shall be of laminar con struction formed under pressure to a homo geneous structure and cured to meet the physical and chemical requirements of this specification. 6. Rubber Rings 6.1 The rubber rings used to seal the joints of the asbestos-cement pipe shall conform to the requirements of the latest revision of Specification D 1869. 7. Chemical Requirements 7.1 When uncombined calcium hydroxide tests are requested, one sample shall be taken from each lot of pipe and tested in accordance with Sections 17 and 18 of Methods C 500. The sample to be tested may be taken from one of the specimens selected for the crushing test. The amount of uncombined calcium hy droxide shall hot exceed 1.0 percent for Type II pipe. Note 4--There are no chemical requirements for Type I pipe. 8. Hydrostatic Strength 8.1 Each standard, random, or short length of pipe (see Section II) and each coupling sleeve, when manufactured from the same material as the pipe, shall be hydrostatically tested by the manufacturer prior to shipment and shall have sufficient strength to withstand the internal hydrostatic pressure prescribed in Table I. when tested in accordance with Sec tion S of Methods C 500. 8.2 From each lot of pipe which has passed the routine hydrostatic proof test, one length shall be selected by the inspector. A 12-in. (305-mm) or longer section of pipe cut from an unmachined portion of the selected length shall have the minimum hydrostatic strength designated in Table 2. when tested in accord ance with Section 5 of Methods C 500. except that the pressure need not be held for 5 s. 9. Flexural Strength 9 1 Each length of pipe in sizes 6 and 8 in. nominal diameter having lengths 10 ft (3.05 m) or longer shall have sufficient flexural strength to withstand without failure the total load prescribed in Table 3 when tested in ac cordance with Section 8 of Methods C 500. 10. Crushing Strength 10.1 From each lot. one length shall be se lected by the inspector. A I-ft (305-mm) sec tion of pipe cut from an unmachined portion of the selected length shall have the minimum crushing strength prescribed in Table 4 when tested in accordance with Section 11.1.1 of Methods C 500. 11. Dimensions and Permissible Vadadoes 11.1 Couplings and ooupling areas of pipe shall be machined or otherwise finished to such dimensions as will provide tight joints when assembled with the proper accessories and put into service for which the pipe is in tended. 11.2 Pipe shall be manufactured with nom inal inside diameters of 6. 8. 10. 12. 14. 15, 16. 18. 20. 21. 24. 27. 30. 33, 36. 39. and 42 in. in the classifications defined in 3.1. except 6in. diameter pipe shall be of Classification 40 through 90 only. The average diameters of standard and random lengths may be less than the nominal inside diameter by not more than 5.0 percent, when measured approximately 3 in. (75 mm) from the end. 11.3 The standard length shall be 13 ft I in. (3.96 m 25 mm). Alternative stanf lengths shall be 10 ft I in. (3.05 m mm) for 6-in. pipe and 16 ft I in. (4.88 m 25 mm) for 14-in. and larger pipe. At least 85 percent of the total footage of pipe of any one classification, type, and size, excluding short lengths, shall be furnished in standard lengths. The remaining 15 percent may be in random lengths of not less than 7 ft (2.13 m). Short lengths, when specifically ordered, shall not exceed 6V ft (2.06 m). 12. Workamnship and Flnisli 12.1 Machined ends of the pipe that re ceive the coupling shall be free of dents and gouges that will affect the tightness of the joint. 12.2 Each pipe shall be free of bulges, dents, and tears in the inside surface that re sult in a variation in diameter of more than 2 CTD014739 J/i, in. (S mm) from thai obtained on adjacent unaffected portions of the surface. 3. Sampling 13.1 All samples shall be in a normal airdried condition when tests are initiated. 14. Inipecttaa lad Rejection 14.1 All material furnished under this spec ification shall conform to the requirements staled herein and shall be subjected to the fac tory inspection and tests prescribed in this specification. When requested by the pur chaser in his order (see Appendix XI). the manufacturer shall notify the purchaser of the time that the inspection and testing will take place so that the purchaser may arrange for witnessing such tests and inspections at his -own expense. Instead of such inspection, when requested, the manufacturer shall be prepared to certify that his product conforms to the re quirements of this specification. 14.2 Pipe and couplings shall be inspected by the manufacturer, before shipment, for compliance with the standards for dimensions, and workmanship, and finish (See also Sec tions 7 to 10). 14.3 Failure of any specimen tested for crushing strength to withstand 75 percent of the load specified in Section 10 shall be cause for rejection of the lot from which the test specimen was taken. When any specimen tested for crushing strength withstands over 75 percent but under 100 percent of the load specified in Section 10. one specimen shall be cut from each of two additional pipes of the same lot. Failure of either of these additional specimens to meet the strength requirements of Section 10 shall be cause for rejection of the entire lot from which the original sample was taken. 14.4 If any pipe subjected to the hydro static strength test described in 8.2 fails to withstand the pressure specified, iwo addi tional lengths of the same size and classifica tion shall be selected from the pipe manufac tured during the same shift and shall be sub jected to the specified pressure. The failure of one of these additional lengths to withstand the specified pressure shall be cause for rejec tion of the entire lot of that size and classifi cation manufactured during the same shift as the test lengths. 14.5 If the results of the uncombined cal cium hydroxide test shows that the sample failed to meet the specification requirements, two additional specimens shall be selected and sampled for test. The failure of one of these two additional samples to meet the specifica tion requirements of Section 7 shall be cause for rejection of the lot. 15. Marking and Shipping 15 I Each standard and random length of pipe shall be marked by the manufacturer with the trade name, nominal size, classifica tion. and date of manufacture. The trade name shall include, but is not limited to. the manufacturer's name or trademark and the words "Transmission Pipe." Each coupling sleeve, if made of the same material as the pipe, shall be marked by the manufacturer with the nominal size, classification, and the letter "T" to indicate that it has been hydro statically tested. 15.2 Pipe arid couplings shall be prepared for commercial shipment so as to ensure ac ceptance by common or other carriers. TABLE I Apptt4 HyBroacaUc Proof Prcttum* Pipe Classilication 30 35 40 45 50 60 70 VO V0 Pressure, mm psi (MPa) 225 (1 551 262 (1 VI) >00 {2 O') 537 (2.32) >**5 i: 5Vi 450 (3 iOl 525 (3 621 600 (4 131 675 (4 65) * The pressures and classifications indicated apply to til sues 3 TABLE 2 MMmm Hydraulic Stmftk' Pipe Classihcanon Pressure, psi (MPa) )0 300 ( 2 0 7) 35 350 (2 41) 40 400 (2 761 45 450 (3 10) 50 500 (}44| 60 600 (4 13) 70 700 (4 82) VO 800 (5 51) 90 900 (6 20) * The pressures and classifications indicated apply to all CTD014740 fSlft c eea ______________________ TABLE i MM-- AppllM Fknenl Pwf Lot*. Hf(tN) Nominal Sue. in. - 30 33 Pipe Clasuflcanon -- ................................. -........ 40 43 30 60 70 6 2300 2300 2400 3200 3700 (10.23) CHI2) (12.43) (14 23) (16.46) It 3700 4400 3100 5700 6400 6900 7600 (16.46) (H.37) (22.68) (25 33) (28.47) (30.69) (33.80) 40 4000 (17.79) 4400 (39 14) 90 4900 (21.80) 10100 (44 92) Nominal in. 6 It 10 12 14 15 16 lit 20 - 21 24 27 30 33 36 39 42 30 2000 2000 2000 2000 2300 2300 2300 2300 2300 2M0 3300 3300 3300 4000 4200 4300 TABLE 4 MMaMi CruMaf SlreagtA. M/Haear ft Pipe Clauificanon 35 40 45 30 60 70 2400 2300 2300 2300 2400 3000 3000 3300 3300 3400 4200 4300 3000 3000 3300 5700 2400 2400 3000 3000 3000 3300 3300 4000 4300 4300 3000 5300 6000 6300 7000 7500 4000 3200 3400 3300 4000 4000 4300 4300 3000 5300 5400 6200 7000 7300 4000 9000 9700 10300 4000 4000 4300 3200 5200 5300 5400 6300 7100 7300 It 100 4400 9700 10300 11200 12000 13000 4700 4400 5300 6400 7000 7400 7300 4300 9300 9700 tiooo 12300 13300 14300 16000 17200 14300 3400 5500 7000 7400 4400 9300 9300 11000 12000 12300 13000 16300 14000 19300 21000 22300 24000 40 6700 7400 9000 10000 11000 12000 12400 14000 13000 16000 19000 20500 22300 24300 26000 24000 30000 90 9000 9300 11000 12200 13300 14300 13400 14000 20000 21000 24000 27000 30000 33000 36000 39000 42000 TABLE 4A MWWas CrwMai Smafffc. N/Baaar Nominal Pipe Classification in. 30 35 40 45 30 60 70 80 90 6 35.0 46.7 38.4 68.6 78.8 97.8 131.3 8 29.2 35.0 40.9 49.6 584 70.1 80.3 108.0 135.7 10 29.2 36.5 43.8 51.1 657 80.3 102.2 131.3 160 5 12 29.2 365 43 8 584 75.9 93 4 1138 145.9 178 0 14 29.2 36.5 43.8 38.4 75 9 102.2 128 4 160.5 197 0 15 33.6 40.9 48.2 62.8 80.3 1080 135 7 175 1 211.6 16 36.3 43.8 51.1 65 7 84 7 109 5 138.6 181.0 224.7 18 36.5 43.8 584 73 0 949 124.0 160.5 204.3 262.7 20 36.5 51 1 65.7 80.3 103.6 138 6 175 1 218.9 291 9 21 36.5 51.1 65.7 84.6 106.5 141.6 182 4 233 5 306 5 24 40.9 55.5 73 0 905 118.2 160 5 218.9 277.3 350 3 27 51.1 61.3 80.3 102.2 128 4 182 4 240.8 299 2 394 0 30 51.1 65.7 87.6 109.5 141.6 197.0 262 7 328.4 437.8 33 51.1 73.0 94.9 116.8 153.2 211.6 284 6 357.6 481 6 36 58 4 73.0 102.2 131 3 163 5 233.5 306 5 3794 525 4 39 61.3 77.3 109.5 141 6 175.1 251.0 3284 408.6 569 2 42 62 8 83 2 116.8 153.2 189 7 270 0 350 3 437.8 6129 4 CTD0U741 ^ C 68 APPENDIX XI. ADDITIONAL PLRCHASE ORDER OPTIONS Xl.l It is suggested to the purchaser, without being made a part of this specification, that the purchaser may request inclusion of the following information in his order or agreement for purchase of the pipe: XI. I. I Any tests, in addition to those prescribed by this specification, as the special circumstances may require. XI 1.2 The place or places where any additional tests are to be made. Xl.l 3 Description of the additional testing facil ities. XI 1 4 Who shall bear the expense of such addi tional tests. Xl.l.5 Whether such additional tests may be made by any sound sampling process or other method approved by the parties, and XI. 1.6 Such other matters as the parties may find desirable to include in their written agreement Die American Society for Testing end Materials lakes no position respecting the validity ofany patent rights assorted in connection with any Hem mentioned in this standard. Users of this standard are expressly advised that determination ofthe validity ofany inch patent rights, and the risk of infringement of inch rights, is entirely their own responsibility. s CTD014742