ISO 456:1973

Surface active agents — Analysis of soaps — Determination of free caustic alkali

Publication date: 1 mar 1973

General information

Current stage: 90.93 Effective date: 11 jan 2022

Originator: ISO

Owner: ISO/TC 91

Type: International Standard

ICS: 71.100.40

Gjuha: arabisht frëngjisht anglisht

Buying

Statusi: Publikuar

PDF - 4 975 Lekë

Paper - 4 975 Lekë

CD - 4 975 Lekë

Language

Language in which you want to receive the document.

Scope

The determination may be carried out in two different ways by the ethanol method or the barium chloride method. In the first case the soap is dissolved in neutralized ethanol, and the free caustic alkali is titrated with an ewthanol solution of hydrochloric acid. The second way includes precipitating of soap and carbonate with barium chloride and determining of the residual alkalinity of the solution, representing the alkalinity of the free potassium hydroxide.

Life cycle

NOW

PUBLISHED
ISO 456:1973
90.93 Standard confirmed
11 jan 2022

National adoptions

SSH ISO 456:1973

DPS

Agjentë me aktivitet sipërfaqësor - Analizat e sapunëve - Përcaktimi i sodës kaustike (helmuese) në gjendje të lirë

60.60 Standard published

DPS/KT 47 më tepër