1、 ISO 2015 Plastics piping systems Polyethylene (PE) pipes and fittings for water supply Part 1: General AMENDMENT 1: Melt mass-flow rate (MFR) for PE 80 and PE 100 Systmes de canalisations en plastique Tubes et raccords en polythylne (PE) destins lalimentation en eau Partie 1: Gnralits AMENDEMENT 1:
2、 Indice de fluidit chaud en masse pour PE 80 et PE 100 INTERNATIONAL STANDARD ISO 4427-1 First edition 2007-08-01 Reference number ISO 4427-1:2007/Amd.1:2015(E) AMENDMENT 1 2015-03-01 ISO 4427-1:2007/Amd.1:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserv
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6、ablished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardiz
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10、t. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsibl
11、e for this document is ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies. ISO 2015 All rights reserved iii ISO 4427-1:2007/Amd.1:2015(E) Introduction This amendment introduces a change to the minimum value o
12、f the melt flow rate MFR for PE 80 and PE 100 from 0,2 g/10 min ( 10%) to 0,15 g/10 min (0%/+10%).iv ISO 2015 All rights reserved Plastics piping systems Polyethylene (PE) pipes and fittings for water supply Part 1: General AMENDMENT 1: Melt mass-flow rate (MFR) for PE 80 and PE 100 Clause 2, Normat
13、ive references ISO 1133-1 Plastics Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics Part 1: Standard method to replace ISO 1133:2005, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics Subclaus
14、e 4.4, Table 1 In the column “Characteristic”, change “Melt mass-flow rate (MFR) for PE 63, PE 80, and PE 100” to “Melt mass-flow rate (MFR) for PE 63”. In the column “Test parameters”, change normative reference ISO 1133:2005 to ISO 1133-1. In the column “Test method”, change normative reference IS
15、O 1133:2005 to ISO 1133-1, and delete reference to test condition D and T. Insert at end of Table 1 before the table footnotes new row with table footnote gas follows: Characteristic Requirement a Test parameters Test method Parameter Value Melt mass-flow rate (MFR) for PE 80 and PE 100 0,20 g to 1,
16、40 g/10 min fg Maximum deviation of 20 % of the nomi- nated value Load 5 kg ISO 1133-1 Test temperature 190 C Time 10 min Number of test pieces b According to ISO 1133-1 gMaterials of nominated value 0,15 MFR 0,20 can be introduced. In such case, attention is drawn to the fusion compatibility (see 4
17、.5). The lowest MFR value resulting from the maximum lower deviation of the nominated value shall be not less than 0,15. Subclause 4.5, Fusion compatibility Add a second paragraph in list item a) For 0,15 MFR 0,20 compounds, fusion compatibility of larger diameter thicker walled pipes should be inve
18、stigated to confirm compatibility. If electrofusion is used, appropriate testing should be carried out to verify the fusion capability of such pipes. ISO 4427-1:2007/Amd.1:2015(E) ISO 2015 All rights reserved 1 ISO 4427-1:2007/Amd.1:2015(E) For information: The amended Table 1 will then read as foll
19、ows: Table 1 Characteristics of PE compound as granules (amended) Characteristic Requirement a Test parameters Test method Parameter Value Compound density 930 kg/m 3 Test temperature 23 C ISO 1183-2 Number of samples According to ISO 1183-2 Carbon black content (black compound only) (2 to 2,5) % by
20、 mass In accordance with ISO 6964 ISO 6964 Carbon black dispersion (black compound only) grade 3 In accordance with ISO 18553 c ISO 18553 Pigment dispersion (blue compound only) grade 3 In accordance with ISO 18553 c ISO 18553 Water content d 300 mg/kg Number of test pieces b 1 ISO 15512 Volatile co
21、ntent 350 mg/kg Number of test pieces b 1 EN 12099 Oxidation induction time 20 min Test temperature 200 C e ISO 11357-6 Number of test pieces b 3 Melt mass-flow rate (MFR) for PE 40 0,2 g to 1,4 g/10 min f Maximum deviation of 20 % of the nomi- nated value Load 2,16 kg ISO 1133-1 Test temperature 19
22、0 C Time 10 min Number of test pieces b According to ISO 1133-1 Melt mass-flow rate (MFR) for PE 63 0,2 g to 1,4 g/10 min f Maximum deviation of 20 % of the nomi- nated value Load 5 kg ISO 1133-1 Test temperature 190 C Time 10 min Number of test pieces b According to ISO 1133-1 Melt mass-flow rate (
23、MFR) for PE 80 and 100 0,20 g to 1,40 g/10 min fg Maximum deviation of 20 % of the nomi- nated value Load 5 kg ISO 1133-1 Test temperature 190 C Time 10 min Number of test pieces b According to ISO 1133-1 aConformity to these requirements shall be proved by the compound manufacturer. bThe number of
24、test pieces given indicates the quantity required to establish a value for the characteristic described in this table. The number of test pieces required for factory production control and process control should be listed in the manufacturers quality plan. cIn case of dispute, the test pieces for ca
25、rbon black dispersion and pigment dispersion shall be prepared by the compression method. dOnly applicable if the measured volatile content is not in conformity with its specified requirement. In case of dispute, the requirement for water content shall apply. The requirement applies to the compound
26、producer at the stage of compound manufacturing and to the compound user at the stage of processing (if the water content exceeds the limit, drying is required prior to use). eThe test can be carried out as an indirect test at 210 C provided there is a clear correlation to the results at 200 C. In c
27、ase of dispute, the test temperature shall be 200 C. fNominated value given by the compound producer. gMaterials of nominated value 0,15 MFR 0,20 can be introduced. In such case, attention is drawn to the fusion compatibility (see 4.5). The lowest MFR value resulting from the maximum lower deviation
28、 of the nominated value to be not less than 0,15.2 ISO 2015 All rights reserved ISO 4427-1:2007/Amd.1:2015(E) For information: The amended Clause 4.5 will then read as follows: 4.5 Fusion compatibility The following applies: a) the compound manufacturer shall demonstrate that each compound conformin
29、g to Table 1 is fusible by testing the tensile strength of a butt fusion joint of pipes manufactured from the compound in accordance with Table 2; For 0,15 MFR 0,20 compounds, fusion compatibility of larger diameter thicker walled pipes should be investigated to confirm compatibility. If electrofusi
30、on is used, appropriate testing should be carried out to verify the fusion capability of such pipes. b) compounds conforming to Table 1 are considered fusible to each other, and on request this shall be demonstrated by the compound manufacturer on compounds from his own product range by the testing of a butt fusion joint for tensile strength in accordance with Table 2. ISO 2015 All rights reserved 3 ISO 4427-1:2007/Amd.1:2015(E) ISO 2015 All rights reserved ICS 23.040.45; 23.040.20; 91.140.60; 93.025 Price based on 3 pages
