1、Designation: F 442/F 442M 09An 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 original adoption or,
2、 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 Defense.1. Scope*1.
3、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 test meth-ods for
4、 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 requirements and t
5、hepressure 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 distribution of pressuriz
6、ed 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 product/component m
7、anufacturers 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 references notes,
8、 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 SI units or inch-pound unitsare to be regarded separately as standard. The values
9、 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, the SI units are shown inbrackets.1.5 The following safety hazards caveat pertains
10、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 determine the applicabi
11、lity of regulatory limita-tions prior to use. A specific precautionary statement is givenin Note 6.2. 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 PressureD 1599 Test Method f
12、or 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 Method for Determining D
13、imensions 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 Terminology Relating
14、to Plastic Piping Systems2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)31This 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 approved Aug.
15、1, 2009. Published August 2009. Originallyapproved in 1974. Last previous edition approved in 2005 as F 442 99 (2005)1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer
16、to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Intern
17、ational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.3 Military Standard: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 SystemsComponentsHea
18、lth Effects43. Terminology3.1 DefinitionsDefinitions are in 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 Sta
19、ndard:3.2.1 hydrostatic design stress the estimated maximumtensile 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 rat
20、ing (PR)the estimated maximum waterpressure the pipe is capable 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 know
21、n as the ISO equation,5is used in thisspecification to relate 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,
22、in. mm, andR = standard thermoplastic pipe dimension ratio (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
23、 average outside diameter of the pipein millimetres or in inches 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 near
24、est 0.5.3.2.5 standard thermoplastic pipe materials designationcodethe 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
25、When the design stress code contains less than two figures, 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
26、madefrom one CPVC plastic pipe material in six standard dimensionratios and water pressure ratings for nonthreaded pipe.4.2 Standard 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 f
27、or all nominal pipe sizes for each material andpressure rating. These are referred to as SDR11, SDR13.5,SDR21, SDR17, SDR26, and 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
28、specification coversCPVC pipe made from CPVC plastic as defined by hydrostaticdesign stresses developed on the basis of long-term tests (seeAppendix).NOTE 4This standard specification does not include requirements forpipe and fittings intended to be used to vent combustion gases.5. Materials5.1 Gene
29、ralChlorinated 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 82 C.5.2 Basic MaterialsThis specificati
30、on 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 MPa) at 180 F 82 C when evaluated in accord
31、ancewith 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 Outside DiametersThe outside diameters and tol
32、er-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 measured in accordancewith Test Method D 212
33、2.6.1.3 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 Table 3 when tested in accordance with 8.4.
34、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 shalldemonstrate a hydrostatic design basis projection at the100 000
35、h intercept that meets the hydrostatic design basiscategory requirement (see Table 1, Test Method D 2837) for4Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., AnnArbor, MI 48113-0140, http:/www.nsf.org.5See ISO R161-1960: Pipes of Plastics Materials for the Transport of Fluids
36、Outside Diameters and Nominal Pressures) Part 1, Metric Series.F 442/F 442M 092the CPVC material used in its manufacture. If the lowerconfidence 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; o
37、r 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, whendetermined in accordance with 8.5.6.4 FlatteningThere shall be no evidence of splitting,crack
38、ing, 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 other defects.The pipe shall be as uniform as commercially practicable incolor, opacity, densit
39、y, and other physical properties.NOTE 5Color 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 and 50 6 5 % relative humidity for not lessthan 40 h prior to test in accordance with Proced
40、ure 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 otherwise specified in the test meth-ods or in this specification.8.3 SamplingThe selection of the
41、 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 less than 50 % of the test speci-mens required for any pressure test shall have at least a pa
42、rt 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. Test individually with water at the internal pressuresgiven in Table 3, six specimens of p
43、ipe, 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 specimens at the pressure indicated for a period of1000 h. Hold the pressure as closely as poss
44、ible, 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 maintain the pressure at the valuesgiven in Table 3 for 1000 h. Failure of two of the six specimen
45、stested 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 failure in the test. Evidence of failure of thepipe shall be as defined in Test Method D 1598.8
46、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 single pressure that will resultin failures at or below 0.10 h. Test an additional threespeci
47、mens 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 defect is detected in thefailure area of the test sample, or there was an obviousTABLE 1 Outside
48、 Diameters and Tolerances for CPVC Plastic PipeNominal Pipe SizeAverage 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
49、 (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 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 0.0
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