ISO 120:1977
ISO 120:1977

Status : Published (Under review)

This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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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.

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General information

  •  : Published
     : 1977-10
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 61/SC 12
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