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Norm
ÖNORM EN ISO 120
Issue date: 1998 10 01
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method (ISO 120:1977)
This International Standard specifies a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in Phenol-formaldehyde mouldings.
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Publisher:
Austrian Standards International
Format:
Digital | 5 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This International Standard specifies a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in Phenol-formaldehyde mouldings.
NOTE This International Standard does not provide an absolute
measure of the ammonia present.
The amount of ammonia in a moulded article is of importante when corrosion of metal inserts or contamination of foodstuffs in contact with the article has to be considered.
ÖNORM EN ISO 120
1998 10 01
Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Co...
Norm
↖
Norm
ISO 120:1977
Issue date :
1977 10 01
Plastics — Phenol-formaldehyde mouldings — Determination of free ammonia and ammonium compounds — Colorimetric comparison method