Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method (ISO 8988:2006)
ISO 8988:2006 specifies three methods for the determination of the hexamethylenetetramine (" hexa" ) content of phenolic resins:a Kjeldahl method direct titration with perchloric acid potentiometric titration with hydrochloric acid.
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