Povučen
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.
POVUČEN
ISO 8112:1984
95.99
Povučen
17. 7. 2023.
OBJAVLJEN
ISO 8112:2023