Published
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.
Revises
ISO 8988:1995
PUBLISHED
ISO 8988:2006
90.93
Standard confirmed
Mar 4, 2020
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