ASTM D7623-20
(Test Method)Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method
Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method
SIGNIFICANCE AND USE
5.1 The emission of mercury during crude oil refining is an environmental concern. The emission of mercury may also contaminate refined products and form amalgams with metals, such as aluminum.
5.2 When representative test portions are analyzed according to this procedure, the total mercury is representative of concentrations in the sample.
SCOPE
1.1 This test method covers the procedures to determine the total mercury content in a sample of crude oil.
1.2 The test method may be applied to crude oil samples containing between 5 ng/mL to 400 ng/mL of mercury. The results may be converted to mass basis, and reported as ng/g of mercury.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This work has been published in “Determination of Mercury in Crude Oil by Atomic Spectroscopy.”2
1.5 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 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.
General Information
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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: D7623 − 20
Standard Test Method for
Total Mercury in Crude Oil Using Combustion-Gold
1
Amalgamation and Cold Vapor Atomic Absorption Method
This standard is issued under the fixed designation D7623; 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* 2. Referenced Documents
3
1.1 This test method covers the procedures to determine the 2.1 ASTM Standards:
total mercury content in a sample of crude oil. D1193 Specification for Reagent Water
D4057 Practice for Manual Sampling of Petroleum and
1.2 The test method may be applied to crude oil samples
Petroleum Products
containing between 5 ng⁄mL to 400 ng⁄mL of mercury. The
D4175 Terminology Relating to Petroleum Products, Liquid
results may be converted to mass basis, and reported as ng/g of
Fuels, and Lubricants
mercury.
D4177 Practice for Automatic Sampling of Petroleum and
1.3 The values stated in SI units are to be regarded as
Petroleum Products
standard. No other units of measurement are included in this
D6299 Practice for Applying Statistical Quality Assurance
standard.
and Control Charting Techniques to Evaluate Analytical
Measurement System Performance
1.4 This work has been published in “Determination of
2
Mercury in Crude Oil by Atomic Spectroscopy.” D6300 Practice for Determination of Precision and Bias
Data for Use in Test Methods for Petroleum Products,
1.5 WARNING—Mercury has been designated by many
Liquid Fuels, and Lubricants
regulatory agencies as a hazardous substance that can cause
D6792 Practice for Quality Management Systems in Petro-
serious medical issues. Mercury, or its vapor, has been dem-
leum Products, Liquid Fuels, and Lubricants Testing
onstrated to be hazardous to health and corrosive to materials.
Laboratories
Use Caution when handling mercury and mercury-containing
D7482 Practice for Sampling, Storage, and Handling of
products. See the applicable product Safety Data Sheet (SDS)
Hydrocarbons for Mercury Analysis
for additional information. The potential exists that selling
D7622 Test Method for Total Mercury in Crude Oil Using
mercury or mercury-containing products, or both, is prohibited
Combustion and Direct Cold Vapor Atomic Absorption
by local or national law. Users must determine legality of sales
Method with Zeeman Background Correction
in their location.
1.6 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 For definitions of terms used in this standard, refer to
responsibility of the user of this standard to establish appro-
Terminology D4175.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Summary of Test Method
1.7 This international standard was developed in accor-
4.1 Controlled heating of the analysis sample in oxygen is
dance with internationally recognized principles on standard-
usedtoliberatemercury.Thesampleisheatedtodrynessinthe
ization established in the Decision on Principles for the
instrument and then thermally (at about 700 °C) and chemi-
Development of International Standards, Guides and Recom-
cally decomposed. The decomposition products are carried by
mendations issued by the World Trade Organization Technical
flowing treated air to the catalytic section of the furnace (at
Barriers to Trade (TBT) Committee.
about 850 °C), where oxidation is completed. The decomposi-
tion products are carried to a gold amalgamator that selectively
1
This test method is under the jurisdiction of ASTM Committee D02 on
traps mercury. After the system is flushed with oxygen to
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.03 on Elemental Analysis.
Current edition approved June 1, 2020. Published June 2020. Originally
3
approved in 2010. Last previous edition approved in 2015 as D7623 – 10 (2015). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI:10.1520/D7623-20. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
Nadkarni, R.A. and Hwang, J. D., “Determination of Mercury in Crude Oil by Standards volume information, refer to the standard’s Document Summary page on
Atomic Spectroscopy” J. ASTM International, 8 (5), #1103559, (2011). the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, We
...
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: D7623 − 10 (Reapproved 2015) D7623 − 20
Standard Test Method for
Total Mercury in Crude Oil Using Combustion-Gold
1
Amalgamation and Cold Vapor Atomic Absorption Method
This standard is issued under the fixed designation D7623; 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 Scope*
1.1 This test method covers the procedures to determine the total mercury content in a sample of crude oil.
1.2 The test method may be applied to crude oil samples containing between 5 ng ⁄mL to 400 ng ⁄mL of mercury. The results
may be converted to mass basis, and reported as ng/g of mercury.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2
1.4 This work has been published in “Determination of Mercury in Crude Oil by Atomic Spectroscopy.”
1.5 WARNING—Mercury has been designated by many regulatory agencies as a hazardous materialsubstance that can cause
central nervous system, kidney and liver damage. serious medical issues. Mercury, or its vapor, may has been demonstrated to be
hazardous to health and corrosive to materials. Caution should be taken Use Caution when handling mercury and mercury
containing mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s
website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware (SDS) for additional informa-
tion. The potential exists that selling mercury and/or mercury containing products into your state or country may be prohibited by
law.or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their
location.
1.6 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.
1.7 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
3
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measure-
ment System Performance
D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and
Lubricants
D6792 Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories
D7482 Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
Current edition approved April 1, 2015June 1, 2020. Published June 2015June 2020. Originally approved in 2010. Last previous edition approved in 20102015 as
D7623 – 10.D7623 – 10 (2015). DOI:10.1520/D7623-10R15.DOI:10.1520/D7623-20.
2
Nadkarni, R. A. and Hwang, J. D., “Determination of Mercury in Crude Oil by Atomic Spectroscopy” J. ASTM International, 8 (5), #1103559, (2011).
3
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7623 − 20
D7622 Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold
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