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ASTM E2293-03

(Practice)

Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of Mercury

Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of Mercury

SIGNIFICANCE AND USE
This practice is primarily to be used to dry samples for the determination of mercury test portions, and it should not be used for the determination of sample moisture content. Most sample preparation methods prescribe drying the samples at 105°C, until a constant mass is obtained. The moisture content is determined as the percentage mass loss on drying. However. since mercury can volatize from samples at the normally utilized temperature, samples that are to be used for mercury determination shall be dried at 60°C (See Practice E 877, Method ISO 9599, Method ISO 1273, and Method ISO 10251).
It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.
SCOPE
1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates and related metallurgical materials.
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.

General Information

Status
Historical
Publication Date
09-Jun-2003
ICS
73.060.99 - Other metalliferous minerals
Technical Committee
E01 - Analytical Chemistry for Metals, Ores, and Related Materials
Drafting Committee
E01.02 - Ores, Concentrates, and Related Metallurgical Materials
Current Stage
Ref Project

Relations

Replaced By
ASTM E2293-03(2008)e1 - Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of Mercury
Effective Date
01-Nov-2008

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ASTM E2293-03 - Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of MercuryASTM E2293-03 - Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of Mercury
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ASTM E2293-03 - Standard Practice for Drying of Metal Bearing Ores, Concentrates and Related Metallurgical Materials for the Determination of Mercury
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E2293–03
Standard Practice for
Drying of Metal Bearing Ores, Concentrates and Related
Metallurgical Materials for the Determination of Mercury
This standard is issued under the fixed designation E 2293; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Significance and Use
1.1 This practice covers the sample drying step for the 5.1 This practice is primarily to be used to dry samples for
determination of mercury in ores, concentrates and related the determination of mercury test portions, and it should not be
metallurgical materials. used for the determination of sample moisture content. Most
1.2 This standard does not purport to address all of the sample preparation methods prescribe drying the samples at
safety concerns, if any, associated with its use. It is the 105°C, until a constant mass is obtained. The moisture content
responsibility of the user of this standard to establish appro- is determined as the percentage mass loss on drying. However.
priate safety and health practices and determine the applica- since mercury can volatize from samples at the normally
bility of regulatory limitations prior to use. utilized temperature, samples that are to be used for mercury
determination shall be dried at 60°C (See Practice E 877,
2. Referenced Documents
Method ISO 9599, Method ISO 1273, and Method
2.1 ASTM Standards: ISO 10251).
E 135 Terminology Relating to Analytical Chemistry for
5.2 It is assumed that all who use this practice will be
Metal, Ores, and Related Materials trained analysts capable of performing skillfully and safely. It
E 877 PracticeforSamplingandSamplePreparationofIron
is expected that work will be performed in a properly equipped
Ores laboratory under appropriate quality control practices such as
E 882 Guide for Accountability and Quality Control in the
those described in Guide E 882.
Chemical Analysis Laboratory
6. Apparatus
2.2 Other Documents:
ISO 9599 Copper, Lead and Zinc Sulfide Concentrates- 6.1 Drying Oven, ventilated with forced circulation of air,
Determination of Hygroscopic Moisture in the Analysis regulated at a temperature of 60 6 2°C.
Sample-Gravimetric Method 6.2 Top-Loading Balance, minimum precision of 0.01 %.
ISO 12743 Copper, Lead, and Zinc Sulfide Concentrates- 6.3 Drying Trays, capable of holding at least a one kg
Sampling Procedures for the Determination of Metal and sample, spread no thicker than 3 cm deep.
Moisture Content
7. Hazards
ISO 10251 Copper, Lead and Zinc Sulfide Concentrates-
7.1 For precautions to be observed in this practice, refer to
Determination of Mass Loss of Bulk Material on Drying
Practice E 50.
3. Terminology
7.2 Mercury can form vapors at low temperatures. Mercury
3.1 Definitions—For definitions of terms used in this Prac- vapors can be hazardous to your health.
...

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