Plastics piping systems - Multilayer M (metal) pipes - Test method for strength of the weld line in the metal layer and bonding between layers by use of a cone
This Technical Report specifies a method for testing the strength of the weld line in the metal layer and the
adhesion between the different layers of multilayer M pipes by the use of a cone.
NOTE 1 Acceptance of any inner layer made from a specific grade of material is subject to the relevant product
standard or system standard and the requirements detailed in that standard.
NOTE 2 The test can be used as a product verification test during production to give an indication of the quality of the
multilayer M pipe product.