ISO 9441:2026
Current
The latest, up-to-date edition.
Steel — Determination of niobium content — 4-(2-Pyridylazo)-resorcinol (PAR) spectrophotometric method
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English
03-08-2026
This document specifies a spectrophotometric method by using 4-(2-pyridylazo)-resorcinol (PAR) for the determination of niobium in steel. The method is applicable to all types of steel with niobium contents between 0,005% (mass fraction) and 1,3% (mass fraction).
| Committee |
ISO/TC 17/SC 1
|
| DocumentType |
Standard
|
| Pages |
11
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS ISO 9441:2026 | Identical |
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