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ASTM D 4471 : 2010-02
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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TEST METHOD FOR PYRIDINE BASES IN CRESYLIC ACID BY DIRECT TITRATION
Superseded date
05-09-2020
Published date
01-02-2010
CONTAINED IN VOL. 06.04, 2017 Describes the determination of pyridine and other basic nitrogen impurities in crude and refined cresylic acids streams, including mixtures.
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