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

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1、Designation: F 442/F 442M 99 (Reapproved 2005)An 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 ori

2、ginal 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 (e) 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.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 plastic pipe mate-rials and CPVC plastic pipe, and requirements and

4、 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 Specification D 2241.NOTE 2The sustained and burst pressure test

5、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 covered by this specification are intendedfor use with the distrib

6、ution 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 allow pneumatic testing of their products.Consult with specific p

7、roduct/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 should a system fail for any reason.1.3 The text of this specification

8、 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 either inch-pound units or SI unitsare to be regarded separately as st

9、andard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system shallbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the specifi-cation.1.5 The following safety ha

10、zards 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 standard to establish appropriate safety and healthpractices and d

11、etermine 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 Time-to-Failure of Plastic PipeUnder Constant Internal Pressu

12、reD 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 Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD 2122 Test Me

13、thod 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 Materials or Pressure DesignBasis for Thermoplastic Pipe ProductsF 412

14、 Terminology Relating to Plastic Piping Systems2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)32.3 Military Standard:1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.25 on Vi

15、nylBased Pipe.Current edition approved 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 Annu

16、al Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box

17、 C700, West Conshohocken, PA 19428-2959, United States.MIL-STD-129 Marking 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

18、accordance with Termi-nology F 412, and abbreviations are in accordance 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 maximumt

19、ensile stress the material is capable of withstanding continu-ously with 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 capa

20、ble of withstanding continuously witha high degree of certainty that 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 relat

21、e standard dimension ratio, hydrostaticdesign stress, and pressure rating: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 (

22、Do/tfor CPVC pipe), also known as SDR.3.2.4 standard thermoplastic pipe 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 in

23、ches by the minimum wall thickness inmillimetres or in inches. If the 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 designat

24、ioncodethe pipe materials designation code shall consist of theabbreviation 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,

25、 acipher shall be used before the number. Thus a completematerial code 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 five standard dim

26、en-sion ratios and water pressure ratings for nonthreaded pipe.4.2 Standard Thermoplastic Pipe Dimension Ratios(SDR)This specification covers CPVC pipe in five standarddimension ratios, namely, 13.5, 17, 21, 26, and 32.5, which areuniform for all nominal pipe sizes for each material andpressure rati

27、ng. These are referred to as SDR13.5, SDR21,SDR17, SDR26, and SDR32.5, respectively. The pressurerating is uniform for all nominal pipe sizes for a given CPVCpipe material and SDR (see Table X1.1).4.3 Hydrostatic Design StressesThis specification coversCPVC pipe made from CPVC plastic as defined by

28、hydrostaticdesign stresses developed on the basis of long-term 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) l

29、ong-term hydrostatic strength tests atboth 73 and 180 F 23 and 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 g

30、reater than 2000 psi 13.80 MPa at 73 F 23 C and 500psi 3.45 MPa) 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. Req

31、uirements Requirements6.1 Dimension and Tolerances:6.1.1 Outside 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 t

32、hicknesses and tolerancesshall be as shown in Table 2 when measured 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

33、defined in Test Method D 1598 at the testpressures given in Table 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

34、in accordance with 8.4.1. The pipe shalldemonstrate 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 lowerconfidence value at 100 000 h di

35、ffers from the extrapolated4Available 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 and Nominal Pressures) Part 1, Metric Series.F 442/F 442M 99 (2005)2LTHS value by m

36、ore 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 burst pressures forCPVC plastic pipe shall be as given in Table 4, whende

37、termined 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 throughout and freefrom visible cracks, holes, foreign inclusions, or othe

38、r 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 Methods8.1 ConditioningCondition the test specimens at 73.4 63.6F 23 6 2C a

39、nd 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 atmosphere of 73 6 3.6F 23 6 2C and 50 6 5%relative humidity, unless otherwi

40、se 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 testinglaboratory shall be deemed adequate.8.3.1 Test SpecimensNot le

41、ss 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 closure.8.4 Sustained Pressure TestSelect the test specimens atrandom.

42、 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 endclosures and bearing the permanent marking on the pipe.Maintain the spec

43、imens 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 3.6F 23 6 2C. Test in accordance withTest Method D 1598, except maintai

44、n 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. Failure of one of the six specimens tested in retestshall constitute fail

45、ure 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 minimum of six specimens shall betested. Test three specimens at a si

46、ngle pressure that will resultin failures at or below 0.10 h. Test an additional threespecimens at a single pressure that will result in failures atabout 200 h. Additional data points may be generated ifnecessary to improve the LTHS or LCL, or both. No pointsshall be excluded unless an obvious defec

47、t is detected in thefailure area of the test sample, or there was an obviousmalfunction of the test equipment. Characterize the data usingthe least-squares regression described in Test Method D 2837.TABLE 1 Outside Diameters and Tolerances for CPVC Plastic PipeNominal Pipe SizeAverage OutsideDiamete

48、r,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 (0.41)34 20 1.050

49、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 60.007 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 1