ISO 172:1978
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ISO 172:1978
4006

Abstract

 Preview

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 

  •  :  Published
     : 1978-08
  •  : 1
     : 1
  •  : ISO/TC 61/SC 12 Thermosetting materials
  •  :
    83.080.10 Thermosetting materials

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std 2 38 Paper
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