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About This Item

 

Full Description

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.

 

Document History

  1. ASTM E945-12

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    Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry (Withdrawn 2021)

    • Most Recent
  2. ASTM E945-07


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

    • Historical Version
  3. ASTM E945-02a


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

    • Historical Version
  4. ASTM E945-02


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

    • Historical Version
  5. ASTM E945-96


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

    • Historical Version