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ASTM-E2941:2013 Edition

ASTM-E2941:2013 Edition

$35.75

E2941-13 Standard Practice for Nitric Acid-Extraction of Elements from Ores and Related Metallurgical Materials by Closed Vessel Microwave Heating

Published By Publication Date Number of Pages
ASTM 2013 4
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ASTM E2941-13

Historical Standard: Standard Practice for Nitric Acid-Extraction of Elements from Ores and Related Metallurgical Materials by Closed Vessel Microwave Heating

ASTM E2941

Scope

1.1 This practice covers the digestion of ores and related metallurgical materials, such as mine soil, waste rock and tailings, for subsequent determination of nitric acid-extractable contents of certain elements by such solution analytical techniques as atomic absorption, atomic emission (see Method D1976), and inductively coupled plasma mass spectroscopy (see Method D5673).

1.1.1 Contents of aluminum, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, chromium, cobalt, copper, gallium, iron, lead, lithium, magnesium, manganese, mercury, molybdenum, nickel, phosphorus, potassium, scandium, selenium, silver, sodium, strontium, thallium, tin, titanium, vanadium and zinc can be extracted from ores and related metallurgical materials for determination by analytical methods for elements in solution. Other elements may be determined from extracts produced using this practice.

1.1.2 Actual element quantification can be accomplished by following the various test methods under other appropriate ASTM standards for element(s) of interest in solution.

1.1.3 The detection limit and linear content range for each element is dependent on the atomic absorption or emission spectrometric technique employed and may be found in the manual accompanying the instrument used or ASTM standard method for analysis of the solutions. Take into account the 100 fold dilution due to digesting a 1-g sample to final volume of 100 mL.

1.1.4 The extent of extraction of elements from ores and related metallurgical materials by this method is dependent upon the physical and mineralogical characteristics of the prepared sample.

1.2 The values stated SI units are to be regarded as the standard. No other units of measurements are included in this standard.

1.3 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. For specific hazard statements, see Section 9.

Keywords

atomic absorption; atomic emission; digestion; inductively coupled plasma mass spectrometry; microwave; mine soils; ores and related metallurgical materials; tailings; vessel; waste rock

ICS Code

ICS Number Code 73.060.01 (Metalliferrous minerals and their concentrates in general)

DOI: 10.1520/E2941-13

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