scope:

This International Standard specifies a method for the determination of the matter extractable from polyamide homopolymers by boiling methanol. Polyamides may contain monomers and oligomers and, possibly, additives. Consequently, if it is desired to know the monomer and oligomer contents, a correction has to be made for the amount of co-extracted additives, if any. Since these additives may vary widely in nature, no general instruction as to their determination can be given. Knowledge of the methanol-extractable matter content of polyamides may be required for the determination of the viscosity number of polyamides (see ISO 307).