1、Designation:D178506 Designation: D1785 12An American National StandardStandard Specification forPoly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80,and 1201This standard is issued under the fixed designation D1785; the number immediately following the designation indicates the year oforiginal
2、adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense
3、.1. Scope*1.1 This specification covers poly(vinyl chloride) (PVC) pipe made in Schedule 40, 80, and 120 sizes and pressure-rated forwater (see Appendix X1). Included are criteria for classifying PVC plastic pipe materials and PVC plastic pipe, a system ofnomenclature for PVC plastic pipe, and requi
4、rements and test methods for materials, workmanship, dimensions, sustained pressure,burst pressure, flattening, and extrusion quality. Methods of marking are also given.1.2 The products covered by this specification are intended for use with the distribution of pressurized liquids only, which areche
5、mically compatible with the piping materials. Due to inherent hazards associated with testing components and systems withcompressed air or other compressed gases some manufacturers do not allow pneumatic testing of their products. Consult withspecific product/component manufacturers for their specif
6、ic testing procedures prior to pneumatic testing.NOTE 1Pressurized (compressed) air or other compressed gases contain large amounts of stored energy which present serious saftey hazards shoulda system fail for any reason.NOTE 2This standard specifies dimensional, performance and test requirements fo
7、r plumbing and fluid handling applications, but does not addressventing of combustion gases.1.3 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notesand footnotes (excluding those in tables and figures) shall not be considered as r
8、equirements of the specification.1.4The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for informationonly.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions
9、to SI units that are provided for information only and are not considered standard.1.5 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification: This standarddoes not purport to address all of the safety concerns, if any, associated with its use
10、. It is the responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.A specific precautionary statement is given in Note 9.NOTE 3CPVC plastic pipes, Schedules 40 and 80, which were formerly
11、included in this specification, are now covered by Specification F441/F441M.NOTE 4The sustained and burst pressure test requirements, and the pressure ratings in the Appendix X1, are calculated from stress values obtainedfrom tests made on pipe 4 in. (100 mm) and smaller. However, tests conducted on
12、 pipe as large as 24-in. (600-mm) diameter have shown these stressvalues to be valid for larger diameter PVC pipe.NOTE 5PVC pipe made to this specification is often belled for use as line pipe. For details of the solvent cement bell, see Specification D2672 andfor details of belled elastomeric joint
13、s, see Specifications D3139 and D3212.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal PressureD1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe,
14、 Tubing, and FittingsD1600 Terminology for Abbreviated Terms Relating to Plastics1This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.25 on Vinyl BasedPipe.Current edition approved MayApril 1, 2006.2012. Pu
15、blished May 2006.2012. Originally approved in 1960. Last previous edition approved in 20052006 as D1785 056.DOI: 10.1520/D1785-06.10.1520/D1785-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standa
16、rdsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible
17、to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standard.Copyrig
18、ht ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D1784 Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC)CompoundsD2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fit
19、tingsD2152 Test Method for Adequacy of Fusion of Extruded Poly(Vinyl Chloride) (PVC) Pipe and Molded Fittings by AcetoneImmersionD2672 Specification for Joints for IPS PVC Pipe Using Solvent CementD2837 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure D
20、esign Basis forThermoplastic Pipe ProductsD3139 Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric SealsD3212 Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric SealsF412 Terminology Relating to Plastic Piping SystemsF441/F441M Specifica
21、tion for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 40 and 802.2 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)32.3 Military Standard:MIL-STD-129 Marking for Shipment and Storage32.4 NSF Standards:Standard No. 14 for Plastic Piping Components and Relate
22、d Materials4Standard No. 61 for Drinking Water System ComponentsHealth Effects43. Terminology3.1 Definitions: Definitions are in accordance with Terminology F412 and abbreviations are in accordance with TerminologyD1600, unless otherwise specified. The abbreviation for poly(vinyl chloride) plastic i
23、s PVC.3.2 Definitions of Terms Specific to This Standard:3.2.1 hydrostatic design stressthe estimated maximum tensile stress the material is capable of withstanding continuously witha high degree of certainty that failure of the pipe will not occur. This stress is circumferential when internal hydro
24、static waterpressure is applied.3.2.2 pressure rating (PR)the estimated maximum water pressure the pipe is capable of withstanding continuously with a highdegree of certainty that failure of the pipe will not occur.3.2.3 relation between dimensions, design stress, and pressure ratingthe following ex
25、pression, commonly known as the ISOequation,5is used in this specification to relate dimensions, hydrostatic design stress, and pressure rating:2S/P 5 D0/t! 1D1785-12_1where:S = hydrostatic design stress, psi (or MPa),P = pressure rating, psi (or MPa),D0= average outside diameter, in. (or mm), andt
26、= minimum wall thickness, in. (or mm).3.2.4 standard thermoplastic pipe materials designation codethe pipe materials designation code shall consist of theabbreviation PVC for the type of plastic, followed by the ASTM type and grade in Arabic numerals and the design stress in unitsof 100 psi (0.7 MPa
27、) with any decimal figures dropped. When the design stress code contains less than two figures, a cipher shallbe used before the number. Thus a complete material code shall consist of three letters and four figures for PVC plastic pipematerials (see Section 5).4. Classification4.1 GeneralThis specif
28、ication covers PVC pipe made to and marked with one of six type/grade/design stress designations (seeX1.2) in Schedule 40, 80, and 120 wall sizes.4.2 Hydrostatic Design StressesThis specification covers pipe made from PVC plastics as defined by four hydrostaticdesign stresses which have been develop
29、ed on the basis of long-term tests (Appendix X1).5. Materials and Manufacture5.1 GeneralPoly(vinyl chloride) plastics used to make pipe meeting the requirements of this specification are categorized bymeans of two criteria, namely, (1) short-term strength tests and (2) long-term strength tests.3Avai
30、lable from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.19111-5098,http:/dodssp.daps.dla.mil.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140, http:/www.nsf.org.5ISO R161-1
31、960, Pipes of Plastics Materials for the Transport of Fluids (Outside Diameters and Nominal Pressures) Part 1, Metric Series.D1785 122NOTE 6The PVC pipe intended for use in the transport of potable water should be evaluated and certified as safe for this purpose by a testing agencyacceptable to the
32、local health authority. The evaluation should be in accordance with requirements for chemical extraction, taste, and odors that arenoless restrictive than those included in NSF Standard No. 14. The seal or mark of the laboratory making the evaluation should be included on the pipe.See pipe marking r
33、equirement for reclaimed water systems.5.2 Basic MaterialsThis specification covers pipe made from PVC plastics having certain physical and chemical propertiesas described in Specification D1784.5.3 CompoundThe PVC compounds used for this pipe shall equal or exceed the following classes described in
34、 SpecificationD1784; PVC 12454, or 14333.5.4 Rework MaterialThe manufacturer shall use only his own clean rework pipe material and the pipe produced shall meetall the requirements of this specification.6. Requirements6.1 Dimensions and Tolerances:6.1.1 Dimensions and tolerances shall be as shown in
35、Table 1 and Table 2 when measured in accordance with Test MethodD2122. The tolerances for out-of-roundness shall apply only to pipe prior to shipment.6.2 Sustained PressureThe pipe shall not fail, balloon, burst, or weep as defined in Test Method D1598, at the test pressuresgiven in Tables 3-5 when
36、tested in accordance with 8.4.6.2.1 Accelerated Regression TestThe accelerated regression test shall be used in place of both the sustained and burstpressure tests, at the option of the manufacturer. The test shall be conducted in accordance with 8.4.1. The pipe shall demonstratea hydrostatic design
37、 basis projection at the 100 000-h intercept that meets the hydrostatic design basis category requirement (seeTables 3-5 and Test Method D2837) for the PVC material used in its manufacture. (Example: PVC 1120 pipe must have a minimum100 000-h projection of 3830 psi (26.40 MPa) and 85 % lower confide
38、nce limit (LCL).6.3 Burst PressureThe minimum burst pressures for PVC plastic pipe shall be as given in Table 6, when determined inaccordance with Test Method D1599.NOTE 7Times greater than 60 s may be needed to bring large size specimens to burst pressure. The test is more difficult to pass using g
39、reaterpressurizing times.6.4 FlatteningThere shall be no evidence of splitting, cracking, or breaking when the pipe is tested in accordance with 8.6.6.5 Extrusion QualityThe pipe shall not flake or disintegrate when tested in accordance with Test Method D2152.7. Workmanship, Finish, and Appearance7.
40、1 The pipe shall be homogeneous throughout and free of visible cracks, holes, foreign inclusions, or other defects. The pipeshall be as uniform as commercially practicable in color, opacity, density, and other physical properties.TABLE 1 Outside Diameters and Tolerances for PVC Plastic Pipe Schedule
41、s 40, 80, and 120, in. (mm)Nominal Pipe Size Outside DiameterTolerancesAverageMaximum Out-of-Roundness (maximum minus minimumdiameter)Schedule 40 sizes 312 in. andover; Schedule 80 sizes 8 in.and overSchedule 40 sizes 3 in. andless;Schedule 80 sizes 6 in. andless;Schedule 120 sizes all18 0.405 (10.2
42、9) 60.004 (60.10) . . . 0.016 (0.41)14 0.540 (13.72) 60.004 (60.10) . . . 0.016 (0.41)38 0.675 (17.14) 60.004 (60.10) . . . 0.016 (0.41)12 0.840 (21.34) 60.004 (60.10) . . . 0.016 (0.41)34 1.050 (26.67) 60.004 (60.10) . . . 0.020 (0.51)1 1.315 (33.40) 60.005 (60.13) . . . 0.020 (0.51)114 1.660 (42.1
43、6) 60.005 (60.13) . . . 0.024 (0.61)112 1.900 (48.26) 60.006 (60.15) . . . 0.024 (0.61)2 2.375 (60.32) 60.006 (60.15) . . . 0.024 (0.61)212 2.875 (73.02) 60.007 (60.18) . . . 0.030 (0.76)3 3.500 (88.90) 60.008 (60.20) . . . 0.030 (0.76)312 4.000 (101.60) 60.008 (60.20) 0.100 (2.54) 0.030 (0.76)4 4.5
44、00 (114.30) 60.009 (60.23) 0.100 (2.54) 0.030 (0.76)5 5.563 (141.30) 60.010 (60.25) 0.100 (2.54) 0.060 (1.52)6 6.625 (168.28) 60.011 (60.28) 0.100 (2.54) 0.070 (1.78)8 8.625 (219.08) 60.015 (60.38) 0.150 (3.81) 0.090 (2.29)10 10.750 (273.05) 60.015 (60.38) 0.150 (3.81) 0.100 (2.54)12 12.750 (323.85)
45、 60.015 (60.38) 0.150 (3.81) 0.120 (3.05)14 14.000 (355.60 60.015 (60.38) 0.200 (5.08) . . .16 16.000 (406.40) 60.019 (60.48) 0.320 (8.13) . . .18 18.000 (457.20) 60.019 (60.48) 0.360 (9.14) . . .20 20.000 (508.00) 60.023 (60.58) 0.400 (10.2) . . .24 24.000 (609.60) 60.031 (60.79) 0.480 (12.2) . . .
46、D1785 123NOTE 8Color and transparency or opacity should be specified in the contract or purchase order.8. Test Methods8.1 ConditioningCondition the test specimens at 73.4 6 3.6F (23 6 2C) and 50 6 5%10 % relative humidity for not lessthan 40 h prior to test in accordance with Procedure A of Practice
47、 D618, for those tests where conditioning is required.8.2 Test ConditionsConduct tests in the standard laboratory atmosphere of 73.4 6 3.6F (23 6 2C) and 50 6 5%10 %relative humidity, unless otherwise specified in the test methods or in this specification.8.3 SamplingThe selection of the sample or s
48、amples of pipe shall be as agreed upon by the purchaser and seller. In case ofno prior agreement, any sample selected by the testing laboratory shall be deemed adequate.8.3.1 Test SpecimensNot less than 50 % of the test specimens required for any pressure test shall have at least a part of themarkin
49、g in their central sections. The central section is that portion of pipe which is at least one pipe diameter away from an endclosure.8.4 Sustained Pressure TestSelect the test specimens at random. Test individually with water at the internal pressures givenin Tables 3-5, six specimens of pipe, each specimen at least ten times the nominal diameter in length, but not less than 10 in. (250mm) or more than 3 ft (1 m) between end closures and bearing the permanent marking on the pipe. Maintain the specimens at thepressure indicated for
