Plastics; Polyamides; Determination of viscosity number
Описание (англ.):
Specification of a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents. The method is applicable to all polyamides and copolyamides, that are soluble in one of the specified solvents, but is not applicable to polyamides with crosslinked structure. Measurement of the flow time of the pure solvent and of a 0,005 g/ml polyamide solution, using the same viscosimeter.Calculation of the viscosity number from these measurement results.
Заменён стандартами:
ISO 307:1994
Дата введения:
01.05.84
Дата отмены:
01.09.94
Код КГС:
Л29
Код ОКСТУ:
2209
Код ОКП:
2209
Нормативные ссылки:
DIN 53727-1980, NEQ*ELOT 762-1982, EQV*NEN-ISO 307-1985, EQV*NF T51-019-1985, EQV*BS 2782 PART 7 METHOD 733A(1991/BSI), EQV