Steel — Determination of niobium content — PAR spectrophotometric method
NORM herausgegeben am 8.12.1988
Designation standards: ISO 9441:1988
Publication date standards: 8.12.1988
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: International technical standard
Kategorie: Technische Normen ISO
Description / Abstract: The method is applicable to types of steel with niobium contents between 0,005 % (m/m) and 1,3 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A includes additional information on the international co-operative tests. Annex B gives a graphical representation of precision data.