90.93 Standard confirmed Mar 14, 2022
CEN
CEN/TC 187 Refractory products and materials
European Norm
81.080 Refractories
This European Standard describes a method for the spectrometric determination of chromium (VI) in chrome bearing refractories, before and after use. It is applicable to fired magnesia-chrome products (containing natural chromite, fused grain or co-clinker) and to unfired materials (with refractory cement or chemical bonds) although it is not to be restricted to these types of refractory. The method is applicable to concentrations up to 500 mg/kg of chromium (VI).
This range may be extended or reduced by modifying the dilution factors.
PUBLISHED
EN 14945:2005
90.93
Standard confirmed
Mar 14, 2022