ASTM E945-12
Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry
- Standard No.
- ASTM E945-12
- Release Date
- 2012
- Published By
- American Society for Testing and Materials (ASTM)
- Latest
- ASTM E945-12
- Scope
This test method is primarily intended to test materials for compliance with compositional specifications. It is assumed that all who use this test method will be trained analysts working in properly equipped laboratories.
Appropriate quality control practices shall be followed such as those described in Guide E882.
1.1 This test method covers the determination of zinc in ores, concentrates, and related materials having chemical composition within the following limits:
Element Application Range, % Zinc 5.0 to 70.0 Lead 0.5 to 50.0 Copper 0.1 to 3.0 Iron 0.5 to 16.0 Sulfur 4.0 to 30.0 Calcium 0.1 to 20.0 Magnesium 0.1 to 10.0 Cadmium 0.1 to 8.0 Arsenic 0.01 to 1.0 Antimony 0.01 to 0.005 Bismuth 0.001 to 0.1 Cobalt 0.1 to 0.5 Nickel 0.3 to 3.0 Silver 0.00 to 150 oz/ton Gold 0.00 to 1.0 oz/ton Note 18212;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.
ASTM E945-12 Referenced Document
- ASTM D1193 Standard Specification for Reagent Water
- ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
- ASTM E1601 Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
- ASTM E173
- ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
- ASTM E50 Standard Practice for Apparatus, Reagents, and safety Precautions for Chemical Analysis of Metals
- ASTM E663
- ASTM E882 Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
ASTM E945-12 history
- 2012 ASTM E945-12 Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by EDTA Complexometric Titrimetry
- 2007 ASTM E945-07 Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Titrimetry
- 2002 ASTM E945-02a Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
- 2002 ASTM E945-02 Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
- 1996 ASTM E945-96 Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
