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GB/T 13747.25-2017 Active
GB/T 13747.25-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 25:Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry
Abstract
This part of GB/T 13747 specifies the method for determining the niobium content in zirconium and zirconium alloys. This part is applicable to the determination of niobium content in sponge zirconium, zirconium, and zirconium alloys. Method I: Determination range: 0.20% to 3.00%; Method II: Determination range: 0.050% to 3.00%. Method II is an arbitration analysis method.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 13747.25-2017 |
| CCS | Rare high-melting-point metals and their alloys |
| ICS | Other non-ferrous metals and their alloys |
| Implement Date | 2018-04-01 |
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