BS EN ISO 120:1998
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method
- Standard No.
- BS EN ISO 120:1998
- Release Date
- 1978
- Published By
- British Standards Institution (BSI)
- Latest
- BS EN ISO 120:1998
- Scope
- This International Standard specifies a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in phenol-formaldehyde mouldings. NOTE - This International Standard does not provide an absolute measure of the ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contami-nation of foodstuffs in contact with the article has to be considered.
BS EN ISO 120:1998 history
- 1978 BS EN ISO 120:1998 Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method
- 1982 BS 903 Pt.C3:1982 Methods of testing vulcanized rubber. Determination of loss tangent and permittivity at power and audio frequencies
- 0000 BS 2782:1970
