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SSH EN ISO 120:2006

Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method (ISO 120:1977)

Jan 1, 2006

General information

60.60     Jan 1, 2006

DPS

DPS/KT 249

European Norm

83.080.10  

English  

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Scope

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.

Life cycle

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PUBLISHED
SSH EN ISO 120:2006
60.60 Standard published
Jan 1, 2006

Related project

Adopted from EN ISO 120:1998