NBN T 04-220-1983
Phthalic anhydride for industrial use - Determination of 1,4-naphthaquinone content - Colorimetric method

Standard No.

NBN T 04-220-1983

Release Date

1982

Published By

BE-NBN

Latest

NBN T 04-220-1983

NBN T 04-220-1983 history

• 1982 NBN T 04-220-1983 Phthalic anhydride for industrial use - Determination of 1,4-naphthaquinone content - Colorimetric method