1、December 2010 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 01.040.23; 01.040.91; 23.040.01; 91.140.40!$ld;“1736524www.din.deDDIN EN 1555-1Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 1: GeneralEnglish translation of DIN EN 1555-1:2010-12Kunststoff-Rohrleitungssysteme fr die Gasversorgung Polyethylen (PE) Teil 1: Allgemei
3、nesEnglische bersetzung von DIN EN 1555-1:2010-12Systmes de canalisations en plastique pour la distribution de combustibles gazeux Polythylne (PE) Partie 1: GnralitsTraduction anglaise de DIN EN 1555-1:2010-12SupersedesDIN EN 1555-1:2003-04www.beuth.deDocument comprises pagesIn case of doubt, the Ge
4、rman-language original shall be considered authoritative.1812.10 DIN EN 1555-1:2010-12 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems” (Secretariat: NEN, Netherlands). The respons
5、ible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-05-08 AA Kunststoff-Rohrleitungssysteme fr die Gasversorgung. Amendments This standard differs from DIN EN 1555-1:2003-04 as follows: a) the standard has been edi
6、torially revised; b) normative references have been updated; c) requirements relating to the colour of the compound and the carbon black to be used (Subclause 4.2.2) have been revised; d) for the classification of the compounds, the strength (MRS value) is to be derived from the LPL value (Subclause
7、 4.4); e) at 80 C, there shall be no knee detected in the regression curve at t 20 min Test temperature Number of test pieces b Test atmosphere Sample weight 200 C c3 Oxygen 15 +/-2 mg ISO 11357-6 Melt mass-flow rate (MFR) (0,2 MFR 1,4) g/10 min Maximum deviation of 20 % of the nominated value dLoad
8、ing mass Test temperature Time Number of test pieces b5 kg 190 C 10 min Shall conform to EN ISO 1133 EN ISO 1133 Volatile content 350 mg/kg Number of test pieces b1 EN 12099 Water content e 300 mg/kg (Equivalent to 0,03 % by mass) Number of test pieces b1 EN ISO 15512 Carbon black content f(2 to 2,5
9、) % (by mass) Shall conform to ISO 6964 ISO 6964 Carbon black dispersion fGrade 3 Rating of dispersion A1, A2, A3 or B Preparation of test pieces Number of test pieces bFree gShall conform to ISO 18553 ISO 18553 Pigment dispersion hGrade 3 Rating of dispersion A1, A2, A3 or B Preparation of test pie
10、ces Number of test pieces bFree gShall conform to ISO 18553 ISO 18553 aConformity to these requirements shall be proved by the compound producer. bThe numbers of test pieces given indicate the numbers required to establish a value for the characteristic described in the table. The numbers of test pi
11、eces required for factory production control and process control should be listed in the manufacturers quality plan. For guidance, see CEN/TS 1555-7 2. cTest may be carried out at 210 C or 220 C providing that there is a clear correlation has been established. In case of dispute the reference temper
12、ature shall be 200 C. dNominated value given by the compound manufacturer. eOnly applicable, if the measured volatile content is not in conformity to its specified requirement. In case of dispute the requirement for water content shall be used. As an alternative method, ISO 760 5 may apply. The requ
13、irement applies to the compound producer at the stage of manufacturing and to the compound user at the stage of processing (if the water content exceeds the limit, drying is required prior to use). fOnly for black compound. gIn case of dispute, the test pieces shall be prepared by the compression me
14、thod. hOnly for non-black compounds. 4.2.3.2 Characteristics of the compound in the form of pipe Unless otherwise specified by the applicable test method, the test pieces shall be conditioned at (23 2) C before testing in accordance with Table 2. DIN EN 1555-1:2010-12 EN 1555-1:2010 (E) 13 The compo
15、und in the form of pipe used for the manufacture of pipes, fittings and valves, shall have characteristics conforming to the requirements given in Table 2. Table 2 Characteristics of compound in the form of pipe Characteristic Requirements aTest parameters Test method Parameter Value Resistance to g
16、as condensate No failure during the test period of all test pieces End caps Test temperature Orientation Number of test pieces bCircumferential (hoop) stress Pipe dimensions: dnenType of test Test period Conditioning period (pipe filled with condensate) Type A of EN ISO 1167-1:2006 80 C Free 3 2,0 M
17、Pa 32 mm 3 mm Synthetic condensate c in water 20 h 1 500 h in air at 23 C EN ISO 1167-1 and EN ISO 1167-2 Resistance to weathering dThe weathered test pieces shall fulfil the requirements of the following characteristics: Preconditioning (weathering): Cumulative radiant exposure Number of test piece
18、s b 3,5 GJ/m2See below EN ISO 16871 a) de-cohesion of an electrofusion joint, (dn:110 mm SDR 11) b) hydrostatic strength (1000 h at 80 C); c) elongation at break a) Sample prepared in accordance with ISO 11413:2008, Jointing condition 1: 23 C; 33% brittle failure b) shall conform to Table 4 of EN 15
19、55-2:2010 c) shall conform to Table 4 of EN 1555-2:2010 a) ISO 13954 b) EN ISO 1167-1 and EN ISO 1167-2 c) EN ISO 6259-1 and ISO 6259-3 Resistance to rapid crack propagation (Critical pressure, pc) (e 15 mm) Pc 1,5 MOP with pc= 3,6 pc,s4+ 2,6 e Test temperature Number of test pieces b0 C Shall confo
20、rm to EN ISO 13477 EN ISO 13477 Resistance to slow crack growth (dn:110 mm SDR 11 ) No failure during the test period Test temperature Internal test pressure: for PE 80 PE 100 Test period Type of test Number of test pieces b80 C 8,0 bar 9,2 bar 500 h Water-in-water Shall conform to EN ISO 13479 EN I
21、SO 13479 aConformity to these requirements shall be proved by the compound producer. bThe numbers of test pieces given indicate the numbers required to establish a value for the characteristic described in the Table. The numbers of test pieces required for factory production control and process cont
22、rol should be listed in the manufacturers quality plan. For guidance, see CEN/TS 1555-7 2. c50 % (by mass) n-decane and 50 % (by mass) 1-3-5 trimethylbenzene. dOnly for non-black compounds. eFull scale/S4 correlation factor is equal to 3,6 and is defined as the full scale/S4 critical absolute pressu
23、re ratio: (pc,full scale+1) = 3,6 (pc,s4+ 1). If the requirement is not met or S4 test equipment not available, then (re)testing by using the full scale test shall be performed in accordance with EN ISO 13478. In this case: pc= pc,full scale. NOTE Attention is drawn to the fact that the correlation
24、factor may be modified, when revising this Standard, according to the result of work of ISO/TC 138/SC4 “Plastics pipes, fittings and valves for the supply of gaseous fuels“. DIN EN 1555-1:2010-12 EN 1555-1:2010 (E) 14 4.3 Fusion compatibility 4.3.1 The compounds conforming to Table 1 shall be fusibl
25、e. This shall be demonstrated by the compound manufacturer for each compound of his own product range by checking that the requirement for the failure mode in a tensile test given in Table 3 is fulfilled for a butt fusion joint prepared by using the parameters as specified in Annex A of ISO 11414:20
26、09 at an ambient temperature of (23 2) C from pipes both manufactured from that compound. 4.3.2 Compounds conforming to Table 1 are considered fusible to each other. If requested, the compound manufacturer shall demonstrate this by checking that the requirement for the failure mode in a tensile test
27、 given in Table 3 is fulfilled for a butt fusion joint prepared by using the parameters as specified in Annex A of ISO 11414:2009 at an ambient temperature of (23 2) C from two pipes manufactured from the compounds from his own range covered by this request. Table 3 Characteristic of compound in the
28、 form of butt fusion joint Characteristic Requirement aTest parameters Test method Parameter Value Determination of the failure mode in a tensile test on buttfusion weld (dn: 110 mm SDR 11) Test to failure: Ductile pass Brittle fail Test temperature Number of test pieces b23 C Shall conform to ISO 1
29、3953 ISO 13953 aThe conformity to these requirements shall be proven by the compound producer. bThe numbers of test pieces given indicate the numbers required to establish a value for the characteristic described in the Table. The numbers of test pieces required for factory production control and pr
30、ocess control should be listed in the manufacturers quality plan. For guidance, see CEN/TS 1555-7 2. 4.4 Classification and designation Compounds shall be designated by the type of PE material. The minimum required strength (MRS) shall conform to Table 4 when tested in the form of pipe. Table 4 Clas
31、sification and designation of compounds Classification by MRS MPa Designation 8,0 PE 80 10,0 PE 100The compound shall be evaluated in accordance with prEN ISO 9080 from pressure tests on pipe in accordance with EN ISO 1167-1 and EN ISO 1167-2 performed on pipe at least at three temperatures, where t
32、wo of the temperatures are fixed to 20 C and 80 C, and a third temperature is free between 30 C and 70 C, to find the LPL. The MRS-value shall be derived from the LPLand the compound shall be classified by the compound producer in accordance with EN ISO 12162. At 80 C, there shall be no knee detecte
33、d in the regression curve at t 5000 h. The conformity of the designation of the compound to the classification given in Table 4 shall be demonstrated by the compound producer. Where fittings are manufactured from the same compound as pipes, then the material classification shall be the same as for p
34、ipes. DIN EN 1555-1:2010-12 EN 1555-1:2010 (E) 15 For the classification of a compound intended only for the manufacture of fittings, test pieces in the form of extruded pipe made from the compound shall be used. 4.5 Design coefficient and design stress The design coefficient, C, for pipes, fittings
35、 and valves for the supply of gaseous fuels shall be greater or equal to 2. The maximum value for the design stress, s, shall be for PE 80, 4,0 MPa and for PE 100, 5,0 MPa. DIN EN 1555-1:2010-12 EN 1555-1:2010 (E) 16 Bibliography 1 EN 12007-2:2000, Gas supply systems Gas pipelines for maximum operat
36、ing pressure up to and including 16 bar Part 2: Specific functional recommendations for polyethylene (MOP up to and including 10 bar) 2 CEN/TS 1555-7, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 7: Guidance for assessment of conformity 3 ISO 3, Preferred numbers Se
37、ries of preferred numbers 4 ISO 497, Guide to the choice of series of preferred numbers and of series containing more rounded values of preferred numbers 5 ISO 760, Determination of water Karl Fischer method (General method) 6 EN 1555-5, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 5: Fitness for purpose of the system 7 ISO 4065, Thermoplastics pipes - Universal wall thickness table DIN EN 1555-1:2010-12
