ISO 10153:1997 PDF

Overview

ISO 10153:1997 defines a validated curcumin spectrophotometric method for the determination of boron in steel. The procedure covers sample dissolution, decomposition of boron compounds, complex formation with curcumin in a buffered acetic medium and spectrophotometric measurement at 543 nm. The method is applicable to boron levels from 0.0001 % to 0.0005 % (m/m) for low‑boron unalloyed steels and 0.0005 % to 0.012 % (m/m) for steels with higher boron content.