Abstract Preview

Specification of a semi-quantitative method. The content of free ammonia in a moulded article is of importance, when corrosion of metal inserts or contamination in contact with the article has to be considered. Distillation of the aqueous extract from a powdered test portion, coloration of the distillate by reaction with Nessler reagent and comparison of the colour with that of standard matching solutions.


General information

  • Status :  Published
    Publication date : 1977-10
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 61/SC 12
    Thermosetting materials
  • 83.080.10
    Thermosetting materials

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