Причина отмены

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jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, these test methods were withdrawn in September 2006.

Область применения

1.1 These test methods cover the chemical analysis of ferrochrome-silicon having chemical compositions within the following limits:

ElementConcentration,%Aluminum0.50 maxAntimony0.005 maxArsenic 0.005 maxBismuth 0.005 maxBoron 0.005 maxCarbon 0.15 maxChromium34.0 to 47.0Cobalt 0.10 maxColumbium0.050 maxCopper 0.050 maxLead 0.005 maxManganese0.75 maxMolybdenum0.050 maxNickel 0.50 maxNitrogen0.050 maxPhosphorus0.030 maxSilicon 30.0 to 45.0Silver 0.005 maxSulfur 0.030 maxTantalum0.050 maxTin 0.005 maxTitanium0.50 maxVanadium0.50 maxZinc 0.005 maxZirconium0.050 max

1.2 The test methods appear in the following order:

SectionsArsenic by the Molybdenum Blue Photometric Method 8-18Chromium by the Acid Dissolution Titrimetric Method 19-25Silicon by the Sodium Peroxide Fusion-Perchloric Acid Dehydration Method26-33

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.