ISO/FDIS 9441
Steel — Determination of niobium content — 4-(2-Pyridylazo)-resorcinol (PAR) spectrophotometric method
| Fecha edición: |
2026-05-19
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | 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. |
| ICS: | 77.080.20 - Aceros |
| CTN: | ISO/TC 17/SC 1 - 46250 |
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Anulaciones Normas |
Anula a ISO 9441:1988 |
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