ISO/DIS 7059

Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm

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 spectrometric measurement of the absorbance of a 50 % caprolactam water solution is carried out at a wavelength of 290 nm. The absorbance, expressed in relation to an optical path length of 1 m, is given by a specified formula in which AO is the correction for the difference in absorbances of the cells; A1 is the absorbance of the test solution, and 1 is the optical path length, in centimetres, of the cell.

Life cycle

PREVIOUSLY

Revises
ISO 7059:1982

NOW

IN_DEVELOPMENT
ISO/DIS 7059
40.20 DIS ballot initiated: 12 weeks
Feb 10, 2023

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