ISO/DIS 8112

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

General information

Current stage: 40.20 Effective date: Feb 10, 2023

Originator: ISO

Owner: ISO/TC 61/SC 5

Type: International Standard

ICS: 71.080.30

Languages: English

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Status: Draft

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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

PREVIOUSLY

Revises
ISO 8112:1984

NOW

IN_DEVELOPMENT
ISO/DIS 8112
40.20 DIS ballot initiated: 12 weeks
Feb 10, 2023

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