Scope
1.1 These test methods cover the chemical analysis of ferrochrome-silicon having chemical compositions within the following limits:
Element Concentration,%
Aluminum 0.50 max
Antimony 0.005 max
Arsenic 0.005 max
Bismuth 0.005 max
Boron 0.005 max
Carbon 0.15 max
Chromium 34.0 to 47.0
Cobalt 0.10 max
Columbium 0.050 max
Copper 0.050 max
Lead 0.005 max
Manganese 0.75 max
Molybdenum 0.050 max
Nickel 0.50 max
Nitrogen 0.050 max
Phosphorus 0.030 max
Silicon 30.0 to 45.0
Silver 0.005 max
Sulfur 0.030 max
Tantalum 0.050 max
Tin 0.005 max
Titanium 0.50 max
Vanadium 0.50 max
Zinc 0.005 max
Zirconium 0.050 max
1.2 The test methods appear in the following order:
Sections
Arsenic by the Molybdenum Blue Photometric Method 8-18
Chromium by the Acid Dissolution Titrimetric Method 19-25
Silicon by the Sodium Peroxide Fusion-Perchloric Acid Dehydration Method 26-33
1.3This 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For precautions to be observed in these test methods, refer to Practices E50, and to precautions included in the individual methods.
