LLDPE has longer chemical chain structure than LDPE and HDPE, it gives better chemical resistance, flexibility, heat and pressure results.
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
PA 11 and PA12 are very similar polymers. They are mostly used for same applications. PA11 is made entirely from vegetable oils, which in its development has had minimal impact on the environment, while PA12 is made from crude oil, which has a higher environmental impact. PA11 has, for most applications, superior mechanical performance in comparison to PA12. PA12 has a slightly lower melting point and density and PA12 performs better at high temperatures and has superior UV resistance.
