Surface active agents — Determination of alkalinity — Titrimetric method
NORMA vydaná dňa 1.2.1977
Označenie normy: ISO 4315:1977
Dátum vydania normy: 1.2.1977
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: A clear solution of the substance is titrated with a standard volumetric hydrochloric acid solution, in the presence of methyl orange or bromophenol blue as indicator. This method is only applicable when so indicated in the specific standard for each product; in particular, it is not suitable for products containing soaps.