This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
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.
Status: PublishedPublication date: 1984-11
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 61/SC 5 Physical-chemical properties
- ICS :
- 71.080.30 Organic nitrogen compounds
This standard contributes to the following Sustainable Development Goal:
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|std 2 40||Paper|
A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development
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