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ISO 8988:2006

Plastics — Phenolic resins — Determination of hexamethylenetetramine content — Kjeldahl method, perchloric acid method and hydrochloric acid method

Publication date:   Aug 25, 2006

General information

90.93   Standard confirmed   Jun 18, 2025

ISO

ISO/TC 61/SC 12 Thermosetting materials

International Standard

83.080.10   Thermosetting materials

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 8988:1995

NOW

PUBLISHED
ISO 8988:2006
90.93 Standard confirmed
Jun 18, 2025