ISO 14849:1999 PDF

Scope: This International Standard specifies a colorimetric comparison method for the determination of the amount of ammonia and ammonium compounds in phenol-formaldehyde mouldings. NOTE This International Standard does not provide an absolute measure of the amount of ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of foodstuffs in contact with the article has to be considered.

ISO 14849:1999 Referenced Document

ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 4788:1980 Laboratory glassware; Graduated measuring cylinders
ISO 4793:1980 Laboratory sintered (fritted) filters; Porosity grading, classification and designation
ISO 565:1990 Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 648:1977 Laboratory glassware; One-mark pipettes
ISO 835-2:1981 Laboratory glassware; Graduated pipettes; Part 2 : Pipettes for which no waiting time is specified

1999 ISO 14849:1999 Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Indophenol method