Drops of a solution of sodium carbonate are placed on the specimen (textiles of all kinds and in all forms), the surface of which is rubbed gently with a glass rod to ensure penetration. The change in colour of the textile is assessed with the grey scale.
Текущий статус : WithdrawnДата публикации : 1989-12
Версия : 3
Технический комитет:Tests for coloured textiles and colorants