ISO 8112:1984

Caprolactam for industrial use — Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale) — Spectrometric method

Publication date: Nov 1, 1984

General information

Current stage: 90.60 Effective date: Jun 5, 2021

Originator: ISO

Owner: ISO/TC 61/SC 5

Type: International Standard

ICS: 71.080.30

Languages: French English

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Status: Published

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Scope

The absorbance of a 50 % aqueous caprolactam solution is spectrometrically measured at a wavelength of 390 nm and an optical path length of 50 mm. The result is expressed in Hazen units by multiplying the absorbance measured by a constant factor equal to 150. This factor is derived from measurements of absorbance of diluted standard solutions of platinum-cobalt scale.

Life cycle

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PUBLISHED
ISO 8112:1984
90.60 Close of review
Jun 5, 2021

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