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

Formerly under the jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, this test method was withdrawn in July 2021 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

Значение и использование

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.

Область применения

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.