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ISO 9397:1995

Plastics — Phenolic resins — Determination of free-formaldehyde content — Hydroxylamine hydrochloride method

Publication date:   Apr 20, 1995

95.99 Withdrawal of Standard   Mar 3, 2004

General information

95.99 Withdrawal of Standard   Mar 3, 2004

ISO

ISO/TC 61/SC 12 Thermosetting materials

International Standard

83.080.10   Thermosetting materials

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Scope

Cancels and replaces the first edition (1989). Lays down a method of chemically determining free formaldehyde in phenolic resins by potentiometric titration, in aqueous or organic solution. The method is applicable to resins with free-formaldehyde contents up to and including 15 % (m/m). For free-formaldehyde contents between 15 % (m/m) and 30 % (m/m), it may be necessary to adjust the concentrations of the standard volumetric solutions used accordingly. This method must not be used in the presence of hexamethylenetetramine.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9397:1989

NOW

WITHDRAWN
ISO 9397:1995
95.99 Withdrawal of Standard
Mar 3, 2004

REVISED BY

ABANDON
ISO/DIS 11402

PUBLISHED
ISO 11402:2004