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ASTM E945-02a
Standard Test Method for Determination of Zinc in Zinc Ores and Concentrates by Complexometric Tritrimetry
4 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
73.060.99 Other metalliferous minerals / Рудные минералы прочие
Сборник (ASTM):
03.05 Analytical Chemistry for Metals, Ores, and Related Materials / Аналитическая химия для металлов, руд и сопутствующих материалов: с E32 и далее
Тематика:
Analytical Chemistry
Описание
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:

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
Magnesium0.1 to 10.0
Cadmium 0.1 to 8.0
Arsenic 0.01 to 1.0
Antimony0.01 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.

Ключевые слова:
EDTA; titration; extraction; zinc ores; concentrate