Вещества поверхностно-активные. Определение смачивающей способности при погружении
Название (англ.):
Surface active agents; determination of wetting power by immersion
Описание (англ.):
A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The wetting time is determined of two standard solutions and for each of five different concentrations and then of the surface active agent solution under test for five different concentrations. The three curves 'wetting time / concentration' are plotted and compared.
Заменяет стандарты:
ISO 8022 (1984.11)
Дата регистрации:
01.08.90
Дата введения:
15.07.90
Код КГС:
Л29
Код ОКСТУ:
2480;2409
Код ОКС(МКС):
71.100.40
Код ОКП:
2480;2409
Нормативные ссылки:
prEN 1772-1994, NEQ*DIN EN 1772-1995, NEQ*BS EN 1772(1995/BSI), EQV*NF T73-420(1995/AFNOR), NEQ*NF EN 1772(1995/AFNOR), NEQ ISO 139-1973*ISO 607-1980*ISO 2456-1986*ISO 3819-1985