Plastics Phenol-formaldehyde mouldings Determination of free ammonia and ammonium compounds Indophenol method

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

12-08-1999

Publisher

International Organization for Standardization

This International Standard specifies a colorimetric comparison method for the determination of the amount of

ammonia and ammonium compounds in phenol-formaldehyde mouldings.

NOTE This International Standard does not provide an absolute measure of the amount of ammonia present.

The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of

foodstuffs in contact with the article has to be considered.

DocumentType	Standard
Pages	8
PublisherName	International Organization for Standardization
Status	Current

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