ASTM E2293-19
(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
5.1 This practice is primarily to be used to dry samples for determination of total mercury. It should not be used for determination of sample moisture content. Most sample preparation methods prescribe drying samples at 105 °C, until a constant mass is obtained. The moisture content is determined as the percent mass loss on drying. Because mercury and some of its compounds are volatile at 105 °C, samples for mercury determination shall be dried at 60 °C (see Practice E877, ISO 9599, ISO 12743, and ISO 10251).
5.2 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 E882.
SCOPE
1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical materials.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E2293 − 19
Standard Practice for
Drying of Metal Bearing Ores, Concentrates, and Related
1
Metallurgical Materials for the Determination of Mercury
This standard is issued under the fixed designation E2293; 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 (´) indicates an editorial change since the last revision or reapproval.
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1. Scope 2.2 Other Documents:
ISO 9599 Copper, Lead, and Zinc Sulfide Concentrates—
1.1 This practice covers the sample drying step for the
Determination of Hygroscopic Moisture in the Analysis
determination of mercury in ores, concentrates, and related
Sample-Gravimetric Method
metallurgical materials.
ISO 12743 Copper, Lead, and Zinc Sulfide Concentrates—
1.2 The values stated in SI units are to be regarded as
Sampling Procedures for the Determination of Metal and
standard. No other units of measurement are included in this
Moisture Content
standard.
ISO 10251 Copper, Lead, and Zinc Sulfide Concentrates—
1.3 This standard does not purport to address all safety Determination of Mass Loss of Bulk Material on Drying
concerns, if any, associated with its use. It is the responsibility
3. Terminology
of the user of this standard to establish appropriate safety,
health, and environmental practices and determine the appli- 3.1 Definitions—For definitions of terms used in this
cability of regulatory limitations prior to use. Practice, refer to Terminology E135.
1.4 This international standard was developed in accor-
4. Summary of Practice
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.1 Test samples to be used for mercury determination are
Development of International Standards, Guides and Recom- dried at 60 °C.
mendations issued by the World Trade Organization Technical
5. Significance and Use
Barriers to Trade (TBT) Committee.
5.1 This practice is primarily to be used to dry samples for
2. Referenced Documents
determination of total mercury. It should not be used for
2
determination of sample moisture content. Most sample prepa-
2.1 ASTM Standards:
ration methods prescribe drying samples at 105 °C, until a
E50 Practices for Apparatus, Reagents, and Safety Consid-
constant mass is obtained. The moisture content is determined
erations for Chemical Analysis of Metals, Ores, and
as the percent mass loss on drying. Because mercury and some
Related Materials
of its compounds are volatile at 105 °C, samples for mercury
E135 Terminology Relating to Analytical Chemistry for
determination shall be dried at 60 °C (see Practice E877,
Metals, Ores, and Related Materials
ISO 9599, ISO 12743, and ISO 10251).
E877 Practice for Sampling and Sample Preparation of Iron
Ores and Related Materials for Determination of Chemi- 5.2 It is assumed that all who use this practice will be
cal Composition and Physical Properties trained analysts capable of performing skillfully and safely. It
E882 Guide for Accountability and Quality Control in the is expected that work will be performed in a properly equipped
Chemical Analysis Laboratory
laboratory under appropriate quality control practices such as
those described in Guide E882.
6. Apparatus
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
6.1 Drying Oven, ventilated with forced circulation of air,
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
regulated at a temperature of 60 °C 6 2 °C.
Current edition approved Oct. 1, 2019. Published October 2019. Originally
6.2 Top-Loading Balance, minimum precision of 0.01 %.
approvedin2003.Lastpreviouseditionapprovedin2013asE2293–03(2013).DOI:
10.1520/E2293-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from International Organization for Standardization (ISO), 1, ch. de
Standards volume information, refer to the standard’s Document Summary page on la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http://
the ASTM website. www.iso.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2293 − 19
NOTE1—Oncethedryingperiodhascommenced,nootherwetsamples
6.3 Drying Trays, capable of holding at least a 1 kg sample,
should be placed into the same drying oven.
spr
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2293 − 03 (Reapproved 2013) E2293 − 19
Standard Practice for
Drying of Metal Bearing Ores, Concentrates, and Related
1
Metallurgical Materials for the Determination of Mercury
This standard is issued under the fixed designation E2293; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical
materials.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
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
E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical
Composition and Physical Properties
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3
2.2 Other Documents:
ISO 9599 Copper, Lead, and Zinc Sulfide Concentrates–DeterminationConcentrates—Determination of Hygroscopic Moisture
in the Analysis Sample-Gravimetric Method
ISO 12743 Copper, Lead, and Zinc Sulfide Concentrates –Sampling Concentrates—Sampling Procedures for the Determination
of Metal and Moisture Content
ISO 10251 Copper, Lead, and Zinc Sulfide Concentrates –Determination Concentrates—Determination of Mass Loss of Bulk
Material on Drying
3. Terminology
3.1 Definitions—For definitions of terms used in this Practice, refer to Terminology E135.
4. Summary of Practice
4.1 Test samples forto be used for mercury determination are dried at 60 °C.
5. Significance and Use
5.1 This practice is primarily to be used to dry samples for the determination of mercury test portions, and it total mercury. It
should not be used for the determination of sample moisture content. Most sample preparation methods prescribe drying the
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Nov. 1, 2013Oct. 1, 2019. Published December 2013October 2019. Originally approved in 2003. Last previous edition approved in 20082013
ε1
as E2293 – 03E2293–03(2013).(2008) . DOI: 10.1520/E2293-03R13.10.1520/E2293-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http://www.iso.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2293 − 19
samples at 105 °C, 105 °C, until a constant mass is obtained. The moisture content is determined as the percentagepercent mass
loss on drying. However, since mercury can volatize from samples at the normally utilized temperature, samples that are to be used
Because mercury and some of its compounds are volatile at 105 °C, samples for mercury determination shall be dried at 60 °C
60 °C (see Practice E877, ISO 9599, ISO 12743, and ISO 10251).
5.2 It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely.
...
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