BS EN ISO 172:1998
Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia

Standard No.

BS EN ISO 172:1998

Release Date

1980

Published By

British Standards Institution (BSI)

Latest

BS EN ISO 172:1998

Scope

This International Standard specifies a qualitative method of detecting the presence of free ammonia or other volatile bases in phenol-formaldehyde mouldings by the exposure of an indicator paper to the vapour from a powdered sample. It may be used when the absence of free ammonia is a requirement.

BS EN ISO 172:1998 history

• 1980 BS EN ISO 172:1998 Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia
• 1980 BS EN ISO 172:1980 Plastics. Phenol-formaldehyde mouldings. Detection of free ammonia