ISO 8112:1984
Caprolactam for industrial use; Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale); Spectrometric method

Standard No.

ISO 8112:1984

Release Date

1984

Published By

International Organization for Standardization (ISO)

Status

Be replaced 2023-07

Replace By

ISO 8112:2023

Latest

ISO 8112:2023

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.

ISO 8112:1984 history

• 2023 ISO 8112:2023 Caprolactam for industrial use — Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale) — Spectrometric method
• 1984 ISO 8112:1984 Caprolactam for industrial use; Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale); Spectrometric method