DIN EN ISO 17701:2016-12

The European Standard specifies a test method for determining the propensity of a material to cause discolouration of another material when stored in close contact. This method is applicable to all materials which are used in intimate contact to adhesives which are used to bond them. Either two dissimilar materials are placed in intimate contact, or a single piece of material, coated with a product such as an adhesive, or laminated materials are placed between glass plates. The assembly is stored in the dark for a prescribed period at an elevated temperature. The test specimens are then examined for any discolouration compared with unexposed reference samples. Discolouration indicates that the materials are likely to discolour under normal service conditions. The responsible committee for this standard is NA 062-10-11 AA "Schuhe" ("Footwear") at DIN Standards Committee Materials Testing (NMP).