NEN ISO 120 : 1978
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PLASTICS - PHENOL-FORMALDEHYDE MOULDINGS - DETERMINATION OF FREE AMMONIA AND AMMONIUM COMPOUNDS - COLORIMETRIC COMPARISON METHOD
01-08-1998
12-01-2013
Defines a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in phenol-formaldehyde mouldings.
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