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ISO 1389-3:1977

Phthalic anhydride for industrial use — Methods of test — Part 3: Measurement of colour stability

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 is based on the measurement of the colour of a test portion, by the method specified in ISO 2211, after a specified heat treatment. The test sample is maintained in a colorimetric tube in an electrically heated aluminium block, controlled at (250 3) °C for 90 min, in the molten state. The results are expressed in Hazen units. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Life cycle

NOW

WITHDRAWN
ISO 1389-3:1977
95.99 Withdrawal of Standard
May 27, 2002

National adoptions

SRPS H.B8.408:1985  
ISS

Phthalic anhydride for industrial use — Methods of test — Part 3: Measurement of colour stability

95.99   Withdrawal of Standard

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