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Norm

ÖNORM EN ISO 172

Issue date: 1998 10 01

Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)

This International Standard specifies a qualitative method of detecting the presence of free ammonia or other volatile bases in Phenol-formaldehyde mouldings by the expos...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 4 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
Committee 074: Plastics and Elastomers
ICS
83.080.10
Topics
Chemistry, paper & textiles, Plastics, Thermosetting materials
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. lt may be used when the absence of free ammonia is a requirement.
ÖNORM EN ISO 172
1998 10 01
Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)
Norm
↖
Norm
ISO 172:1978
Issue date : 1978 08 01
Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia