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1、 AS 5082.12007 Australian Standard Polybutylene (PB) plumbing pipe systemsMetric series Part 1: Metric polybutylene (PB) pipes for hot and cold water applications AS 5082.12007 This Australian Standard was prepared by Committee PL-006, Polyolefin Pipe Systems. It was approved on behalf of the Counci
2、l of Standards Australia on 27 November 2006. This Standard was published on 21 February 2007. The following are represented on Committee PL-006: AUSTAP CSIRO Manufacturing however, it may also be convenient for product manufacturers to use those tests for quality control purposes during manufacture
3、. 2 APPLICATION Means for demonstrating compliance with this Standard shall be in accordance with Appendix A. 3 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1199 Sampling procedures for inspection attributes 1199.1 Part 1: Sampling schemes indexed by acceptance q
4、uality limit (AQL) for lot-by-lot inspection 5082 Polybutylene (PB) plumbing pipe systemsMetric series 5082.2 Part 2: Mechanical and fusion jointing systems AS 5082.12007 6 Standards Australia www.standards.org.au AS/NZS 1462 Methods of test for plastics pipes and fittings 1462.1 Method 1: Method fo
5、r determining the dimensions of pipes and fittings 1462.6 Method 6: Method for hydrostatic pressure testing of pipes 1462.14 Method 14: Method for determination of the light transmission of pipe 2642 Polybutylene pipe systems 2642.1 Part 1: Polybutylene (PB) pipe extrusion compounds 3500 Plumbing an
6、d drainage 3500.0 Part 0: Glossary of terms 4020 Testing of products for use in contact with drinking water 4131 Polyethylene (PE) compounds for pressure pipes and fittings HB 18.28 Guidelines for third-party certification and accreditation Guide 28General rules for a model third-party certification
7、 system for products (ISO/IEC Guide 28) ISO 161 Thermoplastics pipes for the conveyance of fluidsNominal outside diameters and nominal pressures 161-1 Part 1: Metric series 4 DEFINITIONS For the purpose of this Standard, the definitions in AS/NZS 2642.1 and AS 3500.0 apply. 5 NOTATION The following
8、apply to this Standard: Dm = mean outside diameter, in millimetres DN = nominal size, in millimetres DI = mean inside diameter, in millimetres C = overall service (design) coefficient HDS = MRS/C LPL = lower prediction limit MRS = minimum required strength, in megapascals PN = nominal working pressu
9、re designated in bar but normally referenced in megapascals, (that is, 10 bar)(inPN = MPa) SDR = standard dimension ratio T = wall thickness, in millimetres Tmax = maximum wall thickness, in millimetres Tmin = minimum wall thickness, in millimetres TPD = design temperature TPmax = maximum design tem
10、perature TPmal = malfunction temperature The Standard is downloaded from Standard Sharing 7 AS 5082.12007 www.standards.org.au Standards Australia 6 HOOP STRESS Polybutylene (PB) pipe complying with this Standard is designed for the hoop stress calculated with the application of the design coeffici
11、ent to the LTHS specified in Table 1, according to the appropriate pipe material temperature and the nominated extrapolated long-term hydrostatic strength. TABLE 1 LTHS Pipe material temperature C Extrapolated 50 year long-term hydrostatic strength, MPa 20 40 60 70 80 95 13.6 11.5 9.0 7.6 6.3 (25 ye
12、ars) 4.2 (10 years) NOTES: 1 The hydrostatic design stress has been based upon an extrapolated 50 year long-term hydrostatic strength, but 50 years should not be taken as the life of the material under service conditions at elevated temperatures. 2 The life expectance of polybutylene pipe is depende
13、nt on use/temperature profiles. The manufacturers recommendations should be sought for applications involving continuous used at temperatures above 70C. 7 CLASSIFICATION 7.1 Classification of pipe Polybutylene (PB) pipe shall be classified according to nominal working pressure at a pipe material tem
14、perature of 20C as follows: (a) PN 10 (Series 8)nominal working pressure of 1.0 MPa. (b) PN 16 (Series 5)nominal working pressure of 1.6 MPa. (c) PN 20 (Series 4)nominal working pressure of 2.0 MPa. (d) PN 25 (Series 3.2)nominal working pressure of 2.5 MPa. NOTE: Selection of class should be based o
15、n consideration of all factors that may affect the operation of the pipe, e.g., temperature of operation, fluctuating pressure conditions and external loading. 7.2 Classification of service condition Polybutylene (PB) pipe can support short-term temperature exposure in excess of 70C as designed and
16、in cases of malfunction for hot water supply as specified in Table 2. TABLE 2 CLASSIFICATION OF SERVICE CONDITIONS Time at TPD TPmax Time at TPmax TPmal Time at TPmal Application class TPD (year) C (year) C h Application 1 70 49 80 1 95 100 Hot water supply NOTE: Application class 1 refers to hot wa
17、ter pipe systems designed to 70C for 50 years. AS 5082.12007 8 Standards Australia www.standards.org.au 8 MAXIMUM OPERATING PRESSURE ACCORDING TO TEMPERATURE RATING The maximum operating pressure applied to the pipe shall be as specified in Table 3, according to the pipe material temperature rating.
18、 TABLE 3 PRESSURE RATING OF PIPES ACCORDING TO PIPE MATERIAL TEMPERATURE Maximum allowable operating pressure, MPa PN 20C 40C 60C 70C 80C (25 years) 95C (10 years) 10 16 1.00 1.60 0.98 1.53 0.76 1.20 0.65 1.01 0.54 0.84 0.36 0.56 20 25 2.00 2.50 1.92 2.40 1.50 1.88 1.27 1.58 1.05 1.31 0.70 0.88 NOTE
19、S: 1 The manufacturers recommendations should be sought for applications involving continuous use at temperatures above 70C. 2 The pressure rating at 20C is based on serviceability requirements and takes precedence over values calculated. 9 COMPOUND Polybutylene (PB) pipe shall be manufactured from
20、polybutylene pipe extrusion compound complying with AS/NZS 2642.1. Polybutylene polymer shall be precompounded. It is acceptable that precompounded coloured polybutylene be made by blending pigment with a base resin used to produce a compound demonstrated to fully comply with AS/NZS 1462.1 provided
21、that (a) the blend complies with the dispersion requirements of AS/NZS 2642.1; and (b) the blend ensures compliance with all requirements of this Standard including the long-term pressure test at 95C (see Clause 11.2). The addition of the manufacturers own rework material resulting from the manufact
22、ure of pipe to this Standard is permissible. Such rework materials shall be of the same type and colour as the material being processed. No other rework material shall be used. The inclusion of rework material shall be limited to a maximum of 10% to ensure retention of the long-term performance of P
23、B materials. 10 GENERAL REQUIREMENTS 10.1 Diameter and wall thickness When measured in accordance with AS/NZS 1462.1, the pipe shall conform to the dimensions given in Table 4. The Standard is downloaded from Standard Sharing 9 AS 5082.12007 www.standards.org.au Standards Australia TABLE 4 DIMENSIO
24、NS OF POLYBUTYLENE PIPE (PN 10, 16, 20 AND 25) Nominal outside diameter Mean outside diameter Outside diameter including ovality PN 10 (SDR 17) PN 16 (SDR 11) PN 20 (SDR 9) PN 25 (SDR 7.4) Wall thickness Wall thickness Wall thickness Wall thickness De Dm min Dm max Do min Do max Tmin Tmax Mean bore
25、Tmin Tmax Mean bore Tmin Tmax Mean bore Tmin Tmax Mean bore 16 20 25 16.0 20.0 25.0 16.3 20.3 25.3 15.6 19.5 24.4 16.7 20.8 25.9 1.6 1.6 1.6 1.9 1.9 1.9 14.0 16.7 21.7 1.6 1.9 2.3 1.9 2.2 2.7 14.0 16.1 20.2 1.8 2.3 2.8 2.1 2.7 3.2 12.3 5.2 19.2 2.2 2.8 3.5 2.6 3.2 4.0 11.4 14.2 17.4 32 40 50 32.0 40
26、.0 50.0 32.3 40.4 50.5 31.2 39.0 48.8 33.1 41.4 51.7 1.9 2.4 3.0 2.2 2.8 3.4 28.1 35.0 43.9 2.9 3.7 4.6 3.3 4.2 5.2 26.0 32.3 40.5 3.6 4.5 5.6 4.1 5.1 6.3 24.7 30.6 38.4 4.4 5.5 6.9 5.1 6.2 7.7 22.2 27.8 34.8 63 75 90 63.0 75.0 90.0 63.6 75.7 90.9 61.4 73.1 87.8 65.2 77.7 93.2 3.8 4.5 5.4 4.3 5.1 6.
27、1 55.2 65.8 79.0 5.8 6.8 8.2 6.5 7.6 9.2 51.0 61.0 73.1 7.1 8.4 10.1 8.0 9.4 11.3 48.2 57.6 69.1 8.6 10.3 12.3 9.6 11.5 13.7 43.9 52.2 62.7 110 125 140 110.0 125.0 140.0 111.0 126.2 141.3 107.3 121.9 136.5 113.7 130.1 144.8 6.6 7.4 8.3 7.4 8.3 9.3 96.5 109.9 123.1 10.0 11.4 12.7 11.1 12.7 14.1 89.4
28、101.5 113.9 12.3 14.0 15.7 13.7 15.5 17.4 84.5 110.9 15.1 17.1 19.2 16.8 19.0 21.3 78.6 89.5 160 160.0 161.5 156.0 165.6 9.5 10.6 140.7 14.6 16.2 130.0 17.9 19.8 21.9 24.2 NOTES: 1 Ovality: Do min=0.975 Dm min 2 Mean bore is not a dimensional requirement 3 For pipes having nominal outside diameters
29、of 16 mm and 20 mm, minimum wall thickness serviceability requirements take precedence over values calculated. 4 SDR = De/Tmin Standard dimension ratio 5 This metric pipe series is based on ISO 161-1 nominal outside diameters. 6 The nominal outside diameter, expressed in millimetres, is the minimum
30、mean outside diameter Dm min. 7 Pipes intended to be joined together by fusion shall have a minimum wall thickness of 2.2 mm. 8 Pipes intended to be joined together by mechanical fittings shall have a minimum wall thickness of 1.6 mm. AS 5082.12007 10 Standards Australia www.standards.org.au 10.2 Le
31、ngth The length of pipe shall be not less than that claimed by the manufacturer. All measurements shall be corrected for the departure of the ambient temperature from 20C. NOTE: Thermal linear coefficient of expansion of polybutylene pipe may be taken for reference purposes as 1.3 104/K. 10.3 Freedo
32、m from defects 10.3.1 General The defects described in this Clause cannot be completely quantified. Where the presence, size or frequency of any of these is considered to be of concern, arrangements should be made between the purchaser/approving authority/certifying body (as appropriate), and the ma
33、nufacturer. This may be achieved by the provision of acceptable type samples. Where defects are present and the product is submitted for acceptance, the manufacturer should be able to demonstrate fitness for purpose. 10.3.2 Defect requirements Defects shall not affect the performance or function of
34、the pipe in service. Pipe shall be free from blisters and heat marks. Where grooves, wrinkles, rippling, dents or projections are present, the pipe shall comply with the dimensional requirements of Table 4. Pipe ends shall be supplied square, free from chips and rough edges, and shall have sharp edg
35、es removed. 10.4 Toxicity and effect on water Pipes shall comply with the requirements of AS/NZS 4020. 10.5 Colour The colour of purple pipe, stripes or jackets shall be purple, no lighter than RAL 310 70 15, nor darker than RAL 330 40 40 or RAL 310 50 30. NOTE: Information on the RAL colour range m
36、ay be obtained from RAL Deutsches Institut fr Gtesicherung und Kennzeichnung c.V.,www.ral.de. Colour requirements for other colours shall be as agreed between the purchaser and the manufacturer. 10.6 Number and coverage of stripes (if any) Striped pipes shall have a minimum number of four stripes wi
37、th not less than 15% of the external pipe surface covered by the striping material. 10.7 Light transmittance Polybutylene pipe, when stated to be opaque, shall comply with the requirements of AS/NZS 1462.14 with a maximum transmittance of 0.2%. 11 PERFORMANCE REQUIREMENTS 11.1 General Testing of pol
38、ybutylene pipe should not be carried out until the crystalline transformation, which occurs after polybutylene resins are cooled from the melt, has taken place. Pipe should be aged at ambient temperature and pressure for a minimum of 10 days. The Standard is downloaded from Standard Sharing 11 AS 5
39、082.12007 www.standards.org.au Standards Australia 11.2 Long-term pressure test When tested in accordance with AS/NZS 1462.6, at 95 1C, using conditioning times as defined in Table 5, pipe specimens shall exceed the required pressure/time parameter for that point without failure as shown in Table 6.
40、 TABLE 5 CONDITIONING OF TEST SPECIMENS Min. wall thickness mm Conditioning time in water h 10 10 20 20 30 30 40 40 50 50 65 1 3 6 12 18 21 TABLE 6 NOMINATED REFERENCE POINTS Hoop stress MPa Minimum failure time h Minimum number of test specimens 6.55 10 2 6.27 100 2 6.0 1 000 2 5.5 3 000 2 11.3 Sho
41、rt-term pressure test When tested in accordance with AS/NZS 1462.6, at temperatures of both 95 1C and 20 5C, using conditioning times as defined in Table 5 at the respective test temperature, pipe specimens shall withstand the test parameters shown in Table 7 without failure. Failure is defined as l
42、eaking, weeping or rupturing of the test specimen. TABLE 7 TEST CONDITIONS Temperature C Hoop stress MPa Minimum duration h Number of test pieces 20 5 15.5 1 3 95 1 6.2 165 3 12 PACKAGING If the pipe is coiled, the coiling shall be carried out at a temperature that will ensure that the difference be
43、tween the maximum and minimum outside pipe diameters at any cross-section will not exceed 10% of the pipes maximum outside diameter. The minimum coil diameter shall be not less than 20 times the mean outside diameter of the pipe. AS 5082.12007 12 Standards Australia www.standards.org.au 13 MARKING A
44、ll pipes shall be legibly and durably marked with letters of minimum height 3 mm for pipes up to and including 25 mm nominal outside diameter, and 5 mm for pipes 32 mm nominal outside diameter and greater. The markings shall be reproduced in a distinctive colour, at intervals such that the length of
45、 unmarked pipe between marking sets shall be not more than 1 m. The following information shall be marked on the pipe in the order given: (a) The manufacturers name or registered trademark, or both. (b) The nominal outside diameter and metric designation in the form 20 metric. (c) Classification in
46、the form PN 16, as appropriate. (d) The letters PB or the word Polybutylene. (e) The pipe manufacturing standard number. i.e., AS 5082.1. (f) Date of manufacture, giving the year, the month and the day in the form 940115 (i.e., 15 January 1994), as appropriate. Example: The following is an example o
47、f the complete mandatory marking and the order required: TRADENAME 20 PN 16 PB AS 5082.1 940115. Where additional information is marked on the pipe, the marking specified above shall be both preceded and followed by a gap of not less than 100 mm. NOTE: Manufacturers making a statement of compliance
48、with this Australian Standard on a product, packaging, or promotional material related to that product are advised to ensure that such compliance is capable of being verified. The Standard is downloaded from Standard Sharing 13 AS 5082.12007 www.standards.org.au Standards Australia APPENDIX A MEANS
49、 FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD (Normative) A1 SCOPE This Appendix sets out two means by which compliance with this Standard has to be demonstrated by a manufacturer, as follows: (a) The use of a product certification scheme. (b) The use of a minimum sampling and testing frequency plan. A2 RELEVANCE The long-term performance of pipeline systems is critical to the operating eff