ISO 7760:2001

Photography — Processing waste — Determination of hydroquinone

Publication date: Dec 20, 2001

General information

Current stage: 90.93 Effective date: Jun 5, 2021

Originator: ISO

Owner: ISO/TC 42

Type: International Standard

ICS: 37.040.30 13.030.30

Languages: English

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Status: Published

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Scope

This International Standard specifies a spectrophotometric method for the determination of hydroquinone in
photographic processing waste.
This method can be applied to samples containing hydroquinone in the concentration range of 200 μg/l to
4 000 μg/l; aminophenols and phenylenediamines should also be determined by this method. However, sulfonated
hydroquinones or products from the further oxidation of benzoquinone will not be determined.

Life cycle

PREVIOUSLY

Revises
ISO 7760:1986

NOW

PUBLISHED
ISO 7760:2001
90.93 Standard confirmed
Jun 5, 2021

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