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ISO 8112:1984

Caprolactam for industrial use — Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale) — Spectrometric method
1 nën 1984
95.99 Withdrawal of Standard   17 korr 2023

General information

95.99     17 korr 2023

ISO

ISO/TC 61/SC 5

International Standard

71.080.30  

frëngjisht   anglisht  

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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

NOW

WITHDRAWN
ISO 8112:1984
95.99 Withdrawal of Standard
17 korr 2023

REVISED BY

PUBLISHED
ISO 8112:2023