Norm

ASTM E367 - 09 en

Standard Test Methods for Chemical Analysis of Ferroniobium

  • Deze norm is ingetrokken sinds 01-05-2016

50,60 61,23 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 6
Gepubliceerd op 01-10-2009
Taal Engels

1.1 These test methods cover the chemical analysis of ferroniobium having chemical compositions within the following limits:

ElementConcentration, %
Aluminum2.00 max
Carbon0.30 max
Chromium2.00 max
Cobalt0.25 max
Lead0.01 max
Manganese3.00 max
Niobium40.00 to 75.00
Phosphorus0.05 max
Silicon4.00 max
Sulfur0.03 max
Tantalum7.00 max
Tin0.15 max
Titanium5.00 max
Tungsten0.50 max

1.2 The test methods appear in the following order:

Sections
Separation of Niobium, Tantalum, and Titanium
by the Ion-Exchange Test Method
10-16
Titanium by the Photometric 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 Photometric Test Method [0.25 % to 1 %]26-30

1.3 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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 6, and specific warning statements in 11.1.

10.1 These test methods cover the determination of niobium, tantalum, and titanium in ferroniobium from 40 % to 75 %, 0.25 % to 7 %, and 0.05 % to 5.0 %, respectively.

Details

ICS-code 77.040.30
Engelse titel Standard Test Methods for Chemical Analysis of Ferroniobium
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