ISO 172:1978 (R2025)
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ISO 172:1978 (R2025)

Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 08/01/1978
Confirmation Date 06/18/2025
Edition 1
Page Count 1
EAN ---
ISBN ---
Weight (in grams) ---
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