These norms are motor vehicles fuel line and air brake systems requirements and testing standarts for German Institute for Standardization. DIN 73378 accepts a few type of PA12 , PA11 and PA 6 raw material

These norms are motor vehicles air brake systems requirements and testing standarts for German Institute for Standardization. DIN 74324 is accept a few type of PA12 , PA11 raw material. DIN 74324 accepts a few type of PA12 and PA11 raw material.

There are a few similar norms automotive brake and fuel line tubes. ISO 7628 / SAE J844 / DOT / BS 5409