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ASTM International, 06/15/2022
Publisher: ASTM
File Format: PDF
$27.00$54.00
Published:15/06/2022
Pages:7
File Size:1 file , 110 KB
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1.1''These 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
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
1.2''The 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
1.3''Units'''The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4''This 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.
1.5''This 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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