Norm

ASTM E945-12

Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry

48,24

Over deze norm

Status Definitief
Aantal pagina's 4
Commissie E01.02
Gepubliceerd op 01-06-2012
Taal Engels

1.1 This test method covers the determination of zinc in ores, concentrates, and related materials having chemical composition within the following limits:

ElementApplication Range, %
Zinc5.0 to 70.0
Lead0.5 to 50.0
Copper0.1 to 3.0
Iron0.5 to 16.0
Sulfur4.0 to 30.0
Calcium0.1 to 20.0
Magnesium0.1 to 10.0
Cadmium0.1 to 8.0
Arsenic0.01 to 1.0
Antimony0.01 to 0.005
Bismuth0.001 to 0.1
Cobalt0.1 to 0.5
Nickel0.3 to 3.0
Silver0.00 to 150 oz/ton
Gold0.00 to 1.0 oz/ton

Note 1—As used in this test method, percent or % refers to a mass fraction.

1.2 This 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.

Details

ICS-code 73.060.99
Nederlandse titel Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry
Engelse titel Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry

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