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ISO 1389-10:1977

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

Feb 1, 1977
95.99   Withdrawal of Standard   May 27, 2002

General information

95.99     May 27, 2002

ISO

ISO/TC 47

International Standard

71.080.50  

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Scope

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.

Life cycle

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WITHDRAWN
ISO 1389-10:1977
95.99 Withdrawal of Standard
May 27, 2002

National adoptions

SRPS H.B8.413:1985  
ISS

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

95.99   Withdrawal of Standard

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