Aktívna norma | Vydaná: 17.08.1989

ISO 4312:1989-ed.2.0

Surface active agents — Evaluation of certain effects of laundering — Methods of analysis and test for unsoiled cotton control cloth
(Agents de surface — Contrôle de certains effets de blanchissage — Méthodes d´analyse et d´essai d´un tissu de coton témoin non souillé)

Dostupné jazyky: Anglicky, Francúzsky

Dostupné prevedenie: Elektronické PDF, Tlačené

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Podrobné informácie

Označenie: ISO 4312:1989-ed.2.0

Dátum vydania: 17.08.1989

Stránok: 31

Krajina: Medzinárodná technická norma

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Anotácia

Description / Abstract: 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.

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