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ISO 1389-10:1977

$11.05

Phthalic anhydride for industrial use — Methods of test — Part 10: Determination of 1,4- naphthaquinone content — Colorimetric method

Published By Publication Date Number of Pages
ISO 1977-02 4
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The principle consists in the development of a pink colour by heating a test portion containing 1,4-naphtoquinone with tin(II) chloride, and comparison of the colour produced with a series of prepared reference colours. – ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

ISO 1389-10:1977
$11.05