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download between 0-24 hoursReleased: 1988
ISO 9441:1988
ISO 9441:1988-Steel — Determination of niobium content — PAR spectrophotometric method
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Standard´s number: | ISO 9441:1988 |
Pages: | 6 |
Edition: | 1 |
Released: | 1988 |
DESCRIPTION
ISO 9441:1988
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.