DS/EN ISO 120:1999
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method

Standard No.

DS/EN ISO 120:1999

Release Date

1999

Published By

Danish Standards Foundation

Latest

DS/EN ISO 120:1999

Scope

This standard specifies a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in phenol-formaldehyde mouldings. 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.

DS/EN ISO 120:1999 history

• 1999 DS/EN ISO 120:1999 Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method