ASTM F442 F442M-1999(2005)e1 Standard Specification for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe (SDR&x2013 PR).pdf

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1、Designation: F 442/F 442M 99 (Reapproved 2005)1An American National StandardStandard Specification forChlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe(SDRPR)1This standard is issued under the fixed designation F 442/F 442M; the number immediately following the designation indicates the yearof or

2、iginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of

3、Defense.1NOTESections 4.1 and 4.2 were editorially revised in August 2008.1. Scope1.1 This specification covers chlorinated poly(vinyl chlo-ride) (CPVC) pipe made in standard thermoplastic pipe dimen-sion ratios and pressure rated for water (see Appendix).Included are criteria for classifying CPVC p

4、lastic pipe mate-rials and CPVC plastic pipe, and requirements and test meth-ods for materials, workmanship, dimensions, sustained pres-sure, burst pressure, flattening, and extrusion quality. Methodsof marking are also given.NOTE 1The CPVC pipe covered by this specification was coveredpreviously in

5、 Specification D 2241.NOTE 2The sustained and burst pressure test requirements and thepressure ratings in theAppendix are calculated from stress values obtainedfrom tests made on pipe 2 in. (50 mm) and smaller. However, tests onlarger pipe have shown these stress values to be valid.1.2 The products

6、covered by this specification are intendedfor use with the distribution of pressurized liquids only, whichare chemically compatible with the piping materials. Due toinherent hazards associated with testing components and sys-tems with compressed air or other compressed gases somemanufacturers do not

7、 allow pneumatic testing of their products.Consult with specific product/component manufacturers fortheir specific testing procedures prior to pneumatic testing.NOTE 3Pressurized (compressed) air or other compressed gasescontain large amounts of stored energy which present serious safteyhazards shou

8、ld a system fail for any reason.1.3 The text of this specification references notes, footnotes,and appendixes which provide explanatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.4 The values stated in eith

9、er SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.Within the text,

10、 the SI units are shown inbrackets.1.5 The following safety hazards caveat pertains only to thetest methods portion, Section 8, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this stan

11、dard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use. A specific precautionary statement is givenin Note 5.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 1598 Test Method for

12、 Time-to-Failure of Plastic PipeUnder Constant Internal PressureD 1599 Test Method for Resistance to Short-Time Hydrau-lic Pressure of Plastic Pipe, Tubing, and FittingsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)Compounds and

13、Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD 2241 Specification for Poly(Vinyl Chloride) (PVC)Pressure-Rated Pipe (SDR Series)D 2837 Test Method for Obtaining Hydrostatic DesignBasis for Thermoplastic Pipe Material

14、s or Pressure DesignBasis for Thermoplastic Pipe ProductsF 412 Terminology Relating to Plastic Piping Systems1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.25 on VinylBased Pipe.Current edition approve

15、d Nov. 1, 2005. Published November 2005. Originallypublished as part of D 2241 74. Last previous edition approved in 1999 asF 442 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume infor

16、mation, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)32.3 Military Standard:MIL-STD-129 Ma

17、rking for Shipment and Storage32.4 NSF Standards:Standard No. 14 for Plastic Piping Components and RelatedMaterials4Standard No. 61 for Drinking Water SystemsComponentsHealth Effects43. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F 412, and abbreviations are in accordan

18、ce with Ter-minology D 1600, unless otherwise specified. The abbreviationfor chlorinated poly(vinyl chloride) plastic is CPVC.3.2 Definitions of Terms Specific to This Standard:3.2.1 hydrostatic design stress the estimated maximumtensile stress the material is capable of withstanding continu-ously w

19、ith a high degree of certainty that failure of the pipewill not occur. This stress is circumferential when internalhydrostatic water pressure is applied.3.2.2 pressure rating (PR)the estimated maximum waterpressure the pipe is capable of withstanding continuously witha high degree of certainty that

20、failure of the pipe will not occur.3.2.3 relation between standard dimension ratio, hydro-static design stress, and pressure ratingthe following expres-sion, commonly known as the ISO equation,5is used in thisspecification to relate standard dimension ratio, hydrostaticdesign stress, and pressure ra

21、ting:2 S/P 5 R 2 1or2S/P 5Do/t!21where:S = hydrostatic design stress, psi MPa,P = pressure rating, psi kPa,Do= average outside diameter, in. mmt = minimum wall thickness, in. mm, andR = standard thermoplastic pipe dimension ratio (Do/tfor CPVC pipe), also known as SDR.3.2.4 standard thermoplastic pi

22、pe dimension ratio (SDR)the standard thermoplastic pipe dimension ratio (SDR) is theratio of pipe diameter to wall thickness. For CPVC pipe it iscalculated by dividing the average outside diameter of the pipein millimetres or in inches by the minimum wall thickness inmillimetres or in inches. If the

23、 wall thickness calculated by thisformula is less than 0.060 in. 1.52 mm, it shall be arbitrarilyincreased to 0.060 in. 1.52 mm. The SDR values shall berounded to the nearest 0.5.3.2.5 standard thermoplastic pipe materials designationcodethe pipe materials designation code shall consist of theabbrev

24、iation CPVC for the type of plastic, followed by theASTM type and grade inArabic numerals and the design stressin units of 100 psi 690 kPa with any decimal figures dropped.When the design stress code contains less than two figures, acipher shall be used before the number. Thus a completematerial cod

25、e shall consist of four letters and four figures forCPVC plastic pipe materials (see Section 5 and X1.2.1).4. Classification4.1 GeneralThis specification covers CPVC pipe madefrom one CPVC plastic pipe material in six standard dimensionratios and water pressure ratings for nonthreaded pipe.4.2 Stand

26、ard Thermoplastic Pipe Dimension Ratios(SDR)This specification covers CPVC pipe in six standarddimension ratios, namely, 11, 13.5, 17, 21, 26, and 32.5, whichare uniform for all nominal pipe sizes for each material andpressure rating. These are referred to as SDR11, SDR13.5,SDR21, SDR17, SDR26, and

27、SDR32.5, respectively. Thepressure rating is uniform for all nominal pipe sizes for a givenCPVC pipe material and SDR (see Table X1.1).4.3 Hydrostatic Design StressesThis specification coversCPVC pipe made from CPVC plastic as defined by hydrostaticdesign stresses developed on the basis of long-term

28、 tests (seeAppendix).5. Materials5.1 GeneralChlorinated poly(vinyl chloride) plastics usedto make pipe meeting the requirements of this specification arecategorized by means of two criteria, namely, (1) short-termstrength tests, and (2) long-term hydrostatic strength tests atboth 73 and 180 F 23 and

29、 82 C.5.2 Basic MaterialsThis specification covers CPVC pipemade from compounds meeting the requirements of Class23447 as defined in Specification D 1784. The materials shallhave an established HDS (Hydrostatic Design Stress) equal toor greater than 2000 psi 13.80 MPa at 73 F 23 C and 500psi 3.45 MP

30、a) at 180 F 82 C when evaluated in accordancewith Test Method D 2837.5.3 Rework MaterialThe manufacturers shall use onlytheir own clean rework pipe material and the pipe producedshall meet all the requirements of this specification.6. Requirements Requirements6.1 Dimension and Tolerances:6.1.1 Outsi

31、de DiametersThe outside diameters and toler-ances shall be as shown in Table 1 when measured inaccordance with Test Method D 2122. The tolerances onout-of-roundness shall apply only to pipe prior to shipment.6.1.2 Wall ThicknessThe wall thicknesses and tolerancesshall be as shown in Table 2 when mea

32、sured in accordancewith Test Method D 2122.6.1.3 Wall Thickness RangeThe wall thickness range shallbe within 12 % when measured in accordance with TestMethod D 2122.6.2 Sustained PressureThe pipe shall not fail, balloon,burst, or weep as defined in Test Method D 1598 at the testpressures given in Ta

33、ble 3 when tested in accordance with 8.4.6.2.1 Accelerated Regression TestAt the option of themanufacturer, the accelerated regression test may be used as asubstitute for both pressure testssustained and burst. The testshall be conducted in accordance with 8.4.1. The pipe shall3Available from Standa

34、rdization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140.5See ISO R161-1960: Pipes of Plastics Materials for the Transport of Fluids(Outside Diameters a

35、nd Nominal Pressures) Part 1, Metric Series.F 442/F 442M 99 (2005)12demonstrate a hydrostatic design basis projection at the100 000-h intercept that meets the hydrostatic design basiscategory requirement (see Table 1, Test Method D 2837) forthe CPVC material used in its manufacture. If the lowerconf

36、idence value at 100 000 h differs from the extrapolatedLTHS value by more than 15 % of the latter; or M in AppendixX2 (Test Method D 2837) is zero or negative; or b in theequation h = a + bf in Appendix X1 (Test Method D 2837)ispositive, consider the data unsuitable.6.3 Burst PressureThe minimum bur

37、st pressures forCPVC plastic pipe shall be as given in Table 4, whendetermined in accordance with 8.5.6.4 FlatteningThere shall be no evidence of splitting,cracking, or breaking when the pipe is tested in accordancewith 8.6.7. Workmanship, Finish, and Appearance7.1 The pipe shall be homogeneous thro

38、ughout and freefrom visible cracks, holes, foreign inclusions, or other defects.The pipe shall be as uniform as commercially practicable incolor, opacity, density, and other physical properties.NOTE 4Color and transparency or opacity should be specified in thecontract or purchase order.8. Test Metho

39、ds8.1 ConditioningCondition the test specimens at 73.4 63.6F 23 6 2C and 50 6 5 % relative humidity for not lessthan 40 h prior to test in accordance with Procedure A ofPractice D 618 for those tests where conditioning is required.8.2 Test ConditionsConduct the tests in the standardlaboratory atmosp

40、here of 73 6 3.6F 23 6 2C and 50 6 5%relative humidity, unless otherwise specified in the test meth-ods or in this specification.8.3 SamplingThe selection of the sample or samples ofpipe shall be as agreed upon by the purchaser and the seller. Incase of no prior agreement, any sample selected by the

41、 testinglaboratory shall be deemed adequate.8.3.1 Test SpecimensNot less than 50 % of the test speci-mens required for any pressure test shall have at least a part ofthe marking in their central sections. The central section is thatportion of pipe which is at least one pipe diameter away froman end

42、closure.8.4 Sustained Pressure TestSelect the test specimens atrandom. Test individually with water at the internal pressuresgiven in Table 3, six specimens of pipe, each specimen at leastten times the nominal diameter in length, but not less than 10in. 250 mm or more than 3 ft 1000 mm between endcl

43、osures and bearing the permanent marking on the pipe.Maintain the specimens at the pressure indicated for a period of1000 h. Hold the pressure as closely as possible, but within610 psi 670 kPa. Condition the specimens at the testtemperature of 736 3.6F 23 6 2C. Maintain the testtemperature at 73 6 3

44、.6F 23 6 2C. Test in accordance withTest Method D 1598, except maintain the pressure at the valuesgiven in Table 3 for 1000 h. Failure of two of the six specimenstested shall constitute failure in the test. Failure of one of thesix specimens tested is cause for retest of six additionalspecimens. Fai

45、lure of one of the six specimens tested in retestshall constitute failure in the test. Evidence of failure of thepipe shall be as defined in Test Method D 1598.8.4.1 Accelerated Regression TestTest in accordancewith procedures in Test Method D 1598, using either free endor restrained end fittings. A

46、 minimum of six specimens shall betested. Test three specimens at a single pressure that will resultin failures at or below 0.10 h. Test an additional threespecimens at a single pressure that will result in failures atTABLE 1 Outside Diameters and Tolerances for CPVC Plastic PipeNominal Pipe SizeAve

47、rage OutsideDiameter,in. mmTolerances, in. mmFor AverageMaximum Out-of-Roundness(maximum minus minimum diameter)SDR32.5SDR26SDR21SDR17SDR13.5SDR1114 8 0.540 13.7 60.004 0.10 0.030 (0.76) 0.016 (0.41)38 10 0.675 17.1 60.004 0.10 0.030 (0.76) 0.016 (0.41)12 15 0.840 21.3 60.004 0.10 0.030 (0.76) 0.016

48、 (0.41)34 20 1.050 26.7 60.004 0.10 0.030 (0.76) 0.020 (0.51)1 25 1.315 33.4 60.005 0.13 0.030 (0.76) 0.020 (0.51)114 32 1.660 42.2 60.005 0.13 0.030 (0.76) 0.024 (0.61)112 40 1.900 48.2 60.006 0.15 0.060 (1.52) 0.024 (0.61)2 50 2.375 60.3 60.006 0.15 0.060 (1.52) 0.024 (0.61)212 65 2.875 73.0 60.00

49、7 0.18 0.060 (1.52) 0.030 (0.76)3 80 3.500 88.9 60.008 0.20 0.060 (1.52) 0.030 (0.76)312 90 4.000 101.6 60.008 0.20 0.100 (2.54) 0.030 (0.76)4 100 4.500 114.3 60.009 0.23 0.100 (2.54) 0.030 (0.76)5 125 5.563 141.3 60.010 0.25 0.100 (2.54) 0.060 (1.52)6 150 6.625 168.3 60.011 0.28 0.100 (2.54) 0.070 (1.78)8 200 8.625 219.1 60.015 0.38 0.150 (3.81) 0.090 (2.29)10 250 10.750 273.1 60.015 0.38