DIN EN 12814-4-2018 热塑性半成品焊接接头试验. 第4部分: 剥离试验; 德文版本EN 12814-4-2018+AC-2018

标准号：DIN EN 12814-4-2018
中文标准名称：热塑性半成品焊接接头试验. 第4部分: 剥离试验; 德文版本EN 12814-4-2018+AC-2018
英文标准名称：Testing of welded joints of thermoplastics semi-finished products - Part 4: Peel test; German version EN 12814-4:2018+AC:2018
标准类型：J33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J33
国际标准分类号：25.160.40
引用标准：EN 1555-3-2010;EN 12201-3-2011;EN 14728-2005;CEN/TS 16892-2015;ISO 5893-2002;ISO 13954-1997;ISO 13955-1997
适用范围：This European Standard specifies the dimensions, the method of sampling and the preparation of the test specimens, and also the conditions for performing the peel test perpendicular to the weld in order to determine the peel resistance and the failure behaviour. A peel test may be used in conjunction with other tests (e. g. tensile creep, macroscopic examination, etc.) to assess the performance of welded assemblies, made from thermoplastics materials. Peel tests are applicable to overlap welded assemblies made from thermoplastics materials. The T-peel test as defined in Clause 5 will be used only for assessing welded sheet assemblies. This test is not applicable to welded test pieces containing sheets of different nominal thickness. The decohesion test as defined in Clause 6 will be used only for assessing electrofusion joints with nominal thickness of pipe/fitting greater than 10 mm. For socket fusion and for electrofusion socket joints with nominal outside diameter less than or equal to 90 mm, a crush test will be used, as defined in Clause 7. The crush test can also be used for electrofusion joints with outside diameters greater than 90 mm. The crush test for electrofusion saddle joints will be performed in accordance with ISO 13955 [6]. NOTE A decohesion test is also defined in ISO 13954 [5]. The tests defined in this standard should not be used for assessment and/or qualification of thermoplastics fittings, e. g. polyethylene fittings according to EN 1555-3 [1] and EN 12201-3 [2], because they already have their own requirements.