ASTM E945-96
Historical Standard: ASTM E945-96 Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
SUPERSEDED (see Active link, below)
ASTM E945
1. Scope
1.1 This test method covers the determination of zinc in ores, concentrates, and related materials having chemical composition within the following limits:
Element | Concentration 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 |
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1193 Specification for Reagent Water
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals
E663 Practice for Flame Atomic Absorption Analysis
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
Keywords
concentrates; EDTA titration; extraction; zinc ores;
ICS Code
ICS Number Code 73.060.99 (Other metalliferrous minerals)
DOI: 10.1520/E0945-96
ASTM International is a member of CrossRef.