ISO 4312:1989

Surface active agents — Evaluation of certain effects of laundering — Methods of analysis and test for unsoiled cotton control cloth

Publication date:   Aug 17, 1989

General information

90.20 Standard under periodical review   Jan 15, 2022

ISO

ISO/TC 91 Surface active agents

International Standard

71.100.40   Surface active agents

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Scope

Methods for the determination of the following characteristics of the test pieces after washing are specified: intrinsic greying, intrinsic yellowing, increase in organic deposit content, increase in incineration residue, overall decrease in breaking strength, decrease in breaking strength resulting from chemical degradation of cellulose due to laundering and from mechanical factors in laundering. Annexes contain the determination of increase (or decrease) in degree of whiteness and of chemical wear and further a grey scale and the measurement of reflection.

Life cycle

PREVIOUSLY

Revises
ISO 4312:1979

NOW

PUBLISHED
ISO 4312:1989
90.20 Standard under periodical review
Jan 15, 2022