Plastics - Polyamides - Determination of viscosity number
Описание (англ.):
Cancels and replaces the second edition (1984). Specifies a method for the determination of the viscosity number of dilute solutions of polyamides in certain specified solvents that is applicable to polyamides as defined in ISO 1874-1, as well as to copolyamides and otherpolyamides that are soluble in one of the specified solvents under the specified conditions. Not applicable to polyamides produced by anionic polymerization of lactams or produced with crosslinking agents. The viscosity number is determined by the general procedure specified in ISO 1628-1, observing the particular conditions specified herein, and is a measure of the relative molecular mass of the polymer.
Заменён стандартами:
ISO 307:2003
Заменяет стандарты:
ISO 307(1984.05)
Дата регистрации:
19.09.94
Дата введения:
01.09.94
Дата отмены:
28.08.03
Код КГС:
Л29
Код ОКСТУ:
2224
Код ОКС(МКС):
83.080.20
Код ОКП:
2224
Нормативные ссылки:
DIN 53727-1980, NEQ*BS 2782 PART 7 METHOD 733A(1996/BSI), EQV*EN ISO 307-1997, EQV*DIN EN ISO 307-1998, EQV*BS EN ISO 307(1996/BSI), EQV ASTM D 789-1986*ISO 472-1988*ISO 599-1985*ISO 960-1988*ISO 1042-1983*ISO 1628-1-1984*ISO 1874-1-1992*ISO 3105*ISO 3451-4-1986*ISO 6427-1992