ASTM E 367 : 2022
Current
The latest, up-to-date edition.
Standard Test Methods for Chemical Analysis of Ferroniobium
Hardcopy , PDF
English
29-06-2022
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
E 01
|
| DocumentType |
Test Method
|
| Pages |
7
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1These test methods cover the chemical analysis of ferroniobium having chemical compositions within the following limits:
| Element | Composition, % | |
| Aluminum | 2.00 max | |
| Carbon | 0.30 max | |
| Chromium | 2.00 max | |
| Cobalt | 0.25 max | |
| Lead | 0.01 max | |
| Manganese | 3.00 max | |
| Niobium | 40.00 to 75.00 | |
| Phosphorus | 0.05 max | |
| Silicon | 4.00 max | |
| Sulfur | 0.03 max | |
| Tantalum | 7.00 max | |
| Tin | 0.15 max | |
| Titanium | 5.00 max | |
| Tungsten | 0.50 max |
1.2The test methods appear in the following order:
| Sections | |
| Separation of Niobium, Tantalum, and Titanium by the Ion-Exchange Test Method | 15 and 16 |
| Titanium by the Spectrophotometric Test Method [0.05 % to 5.0 %] | 17 – 21 |
| Niobium by the Gravimetric Test Method [40 % to 75 %] | 22 – 23 |
| Tantalum by the Gravimetric Test Method [1 % to 7 %] | 24 – 25 |
| Tantalum by the Spectrophotometric Test Method [0.25 % to 1 %] | 26 – 30 |
1.3Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 6, and specific warning statements in 11.1.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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