OS GSO ISO 172:2015
ISO 172:1978
Omani Standard
Current Edition
·
Approved on
03 September 2015
Plastics -- Phenol-formaldehyde mouldings -- Detection of free ammonia
OS GSO ISO 172:2015 Files
English
1 Pages
Current Edition
Reference Language
OMR
20.35
OS GSO ISO 172:2015 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.
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