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ISO 2270:1989

Non-ionic surface active agents — Polyethoxylated derivatives — Iodometric determination of oxyethylene groups
17. 8. 1989.

Опште информације

90.20     15. 4. 2026.

ISO

ISO/TC 91

Međunarodni standard

71.100.40  

francuski   engleski  

Kupovina

Objavljen

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Apstrakt

The sample is hydrolyzed by nascent hydroiodic acid. The iodine liberated is titrated with a standard volumetric sodium thiosulfate solution. The method is applicable to the analysis of polyethoxylated derivatives of primary saturated fatty alcohols, oleyl alcohol, satureted fatty acids, straight and branched chain alkylphenols. It is not applicable in the present of compounds containing sulfur or nitrogen, compounds containing oxypropylene group, aldehydes or acetals, sterols and derivatives.

Životni ciklus

PRETHODNO

POVUČEN
ISO 2270:1972

TRENUTNO

OBJAVLJEN
ISO 2270:1989
90.20 Početak postupka preispitivanja standarda
15. 4. 2026.

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