NEN-ISO 120
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 April 1978 |
| Status: | inactive |
| ICS Code (Thermosetting materials): | 83.080.10 |
scope:
This International Standard specifies a colorimetric comparison method for the semi-quantitative determinatino 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.
Document History
NEN-ISO 120
April 1, 1978
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method
This International Standard specifies a colorimetric comparison method for the semi-quantitative determinatino of the amount of ammonia in phenol-formaldehyde mouldings. The amount of ammonia in a...