Standard Test Method for Determining Chemical Compatibility of Substance s in Contact with Thermoplastic Pipe and Fittings Materials Ingestion-build-207047 BS EN 61068-2 provides guidelines

BS EN 61068-2 provides guidelines to manufacturers on how to use polyester fibre woven tapes adequate performance in that application

It is not particularly directed to the certification of reference materials (particularly chemical substances) and to calibrations where artefacts are compared using a scheme known as a “weighing design”

if you are a manufacturer of single feed indirect copper cylinders for domestic use

although its guidance also applies to separate window and door elements within those particular types of assemblies

Manufacturers of epoxy resin casts

Standard Test Method for Determining Chemical Compatibility of Substance s in Contact with Thermoplastic Pipe and Fittings Materials Ingestion-build-207047 BS EN 61068-2 provides guidelines