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NEN-EN-ISO 8988

Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method and perchloric acid method

inactive
Organization: NEN
Publication Date: 1 April 1997
Status: inactive
Page Count: 12
ICS Code (Thermosetting materials): 83.080.10
scope:

Specifies two methods for the determination of the hexamethylenetetramine ("hexa") content of phenolic resins. They are equivalent. The Kjeldahl method is not applicable if there are other components containing nitrogen in the phenolic resin. The perchloric acid method is only applicable if there are no other basic or acidic additives in the resin.

Document History

September 1, 2006
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method
This International Standard specifies three methods for the determination of the hexamethylenetetramine ("hexa") content of phenolic resins. The three methods are equivalent. The Kjeldahl method...
March 1, 2005
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method
This International Standard specifies three methods for the determination of the hexamethylenetetramine ("hexa") content of phenolic resins. The three methods are equivalent. The Kjeldahl method...
NEN-EN-ISO 8988
April 1, 1997
Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method and perchloric acid method
Specifies two methods for the determination of the hexamethylenetetramine ("hexa") content of phenolic resins. They are equivalent. The Kjeldahl method is not applicable if there are other components...
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