ISO 685:1975

Analysis of soaps — Determination of total alkali content and total fatty matter content

Publication date: 1 tet 1975

95.99 Withdrawal of Standard 28 shk 2020

General information

Current stage: 95.99 Effective date: 28 shk 2020

Originator: ISO

Owner: ISO/TC 91

Type: International Standard

ICS: 71.100.40

Gjuha: frëngjisht anglisht

Buying

Statusi: Shfuqizuar

PDF - 7 576 Lekë

Paper - 7 576 Lekë

CD - 7 576 Lekë

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Scope

The method consists in decomposition of the soap by a known volume of standard volumetric mineral acid solution, extraction and separation of the liberated fatty matter with light petroleum and determination of a total alkali content by titration of the excess of acid contained in the aqueous phase with a standard volumetric sodium hydroxide solution. After evaporation of the light petroleum from the extract, dissolution of the residue in ethanol and neutralization of the fatty acids with a standard volumetric potassium hydroxide solution. Evaporation of the ethanol and weighing of the soap formed to determine the total fatty matter content.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO/R 455:1965

NOW

WITHDRAWN
ISO 685:1975
95.99 Withdrawal of Standard
28 shk 2020

REVISED BY

PUBLISHED
ISO 685:2020

National adoptions

SSH ISO 685:1975

DPS

Analizat e sapunëve - Përcaktimi i përmbajtjes së përgjithshme të alkaleve dhe përmbajtjes së përgjithshme të lëndëve yndyrore

60.60 Standard published

DPS/KT 47 më tepër