Plastics - Phenolic moulding materials - Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) (ISO 308:1994); German version EN ISO 308:1997— 4 стр.
Plastics - Determination of matter extractable by organic solvents (conventional methods) (ISO 6427:2013); German version (FprEN ISO 6427:2013)— 23 стр.