0 Items
My account
Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

ISO 4320:1977

Non-ionic surface active agents — Determination of cloud point index — Volumetric method

Feb 1, 1977

General information

90.60     Sep 3, 2024

ISO

ISO/TC 91

International Standard

71.100.40  

French   English  

Buying

Published

Language in which you want to receive the document.

Scope

The determination is carried out by adding, at 30 degree Celsius, of distilled water to a propanol solution to the surface active agent until the appearance of cloudiness. The determination of the cloud point index provided a way of characterizing weakly alkoxylated derivates and their hydrocarbon hydrophobic groups. This simple and rapid measurement is a valuable means for checking the level of alkoxylation of non-ionic derivatives intended, for example, for sulphonation.

Life cycle

NOW

PUBLISHED
ISO 4320:1977
90.60 Close of review
Sep 3, 2024

National adoptions

SRPS ISO 4320:1994  
ISS

Non-ionic surface active agents - Determination of cloud point index - Volumetric method (ISO 4320:1977, Including Erratum:1980)

90.93   Standard confirmed

H091 more