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ISO

ISO 172:1978

Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia

Standard Details

Specification of 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 moistened powdered sample. It may be used when the absence of free ammonia is a requirement.

General Information

Status : Published
Standard Type: Main
Document No: ISO 172:1978
Document Year: 1978
Pages: 1
Edition: 1

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ISO 172:1978
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