scope:

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

Element Concentration, % Aluminum 2.00 max Carbon 0.30 max Chromium 2.00 max Cobalt 0.25 max Columbium 40.00 to 75.00 Lead 0.01 max Manganese 3.00 max 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 methods appear in the following order:

Sections Columbium, Tantalum, and Titanium by the Ion-Exchange Method 9 to 30

1.3 This standard does not purport to address all of the safety problems, 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 5.