<p>This International Standard specifies a colorimetric comparison method for the determination of the amount of</p>
<p>ammonia and ammonium compounds in phenol-formaldehyde mouldings.</p>
<p>NOTE This International Standard does not provide an absolute measure of the amount of ammonia present.</p>
<p>The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of</p>
<p>foodstuffs in contact with the article has to be considered.</p>
Registration number (WIID)
25746
Scope
<p>This International Standard specifies a colorimetric comparison method for the determination of the amount of</p>
<p>ammonia and ammonium compounds in phenol-formaldehyde mouldings.</p>
<p>NOTE This International Standard does not provide an absolute measure of the amount of ammonia present.</p>
<p>The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of</p>
<p>foodstuffs in contact with the article has to be considered.</p>
