BS EN 12814-4:2018

What is BS EN 12814-4 - Peel test about?  

BS EN 12814-4 specifies the dimensions, the method of sampling and the preparation of the test specimens, and the conditions for performing the peel test perpendicular to the weld to determine the peel resistance and the failure behaviour. 

A peel test can be used in conjunction with other tests to assess the performance of welded assemblies, made from thermoplastics materials. Peel tests are applicable to overlap welded assemblies made from thermoplastic materials. 

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. 

NOTE - A decohesion test is also defined in ISO 13954. 

Who is BS EN 12814-4 - Peel test for? 

BS EN 12814-4 on peel test is useful for: 

• Thermoplastic product manufacturing companies 
• Thermoplastic laboratories 

Why should you use BS EN 12814-4 - Peel test?  

BS EN 12814-4 helps to check the welding joints of thermoplastic material using a peel test. 

BS EN 12814-4 provides the manufacturers with the guidelines to determine the decohesion test which is used only for assessing electrofusion joints with a nominal thickness of pipe/fitting greater than 10 mm. 

BS EN 12814-4 contains regulated guidelines for the manufacturing of semi-product with thermoplastic material. 

What’s changed since the last update?  

BS EN 12814-4 supersedes BS EN 128144:2001. BS EN 12814-4 includes some technical changes with respect to BS EN 128144:2001. These include: 

• The procedures in the Clauses “T-peel test,” “Decohesion test,” “Crush test” have been detailed with specifications and consequently with the reference figures