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ISO 14849:1999

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

Publication date:   Aug 12, 1999

General information

90.93   Standard confirmed   Jun 18, 2025

ISO

ISO/TC 61/SC 12 Thermosetting materials

International Standard

83.080.10   Thermosetting materials

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Scope

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.

Life cycle

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PUBLISHED
ISO 14849:1999
90.93 Standard confirmed
Jun 18, 2025