These test methods cover the chemical analysis of ferrochrome-silicon having chemical compositions within specified limits.
Formerly under the jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, these test methods were withdrawn in September 2006.
1.1 These test methods cover the chemical analysis of ferrochrome-silicon having chemical compositions within the following limits:
|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|
|Copper|| 0.050 max|
|Lead|| 0.005 max|
|Nickel|| 0.50 max|
|Silicon|| 30.0 to 45.0|
|Silver|| 0.005 max|
|Sulfur|| 0.030 max|
|Tin|| 0.005 max|
|Zinc|| 0.005 max|
1.2 The test methods appear in the following order:
|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.
acid dehydration; arsenic content; chemical composition; chromium content; ferrochrome-silicon; fusion; photometric; silicon content; titrimetric;
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Citing ASTM Standards
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