ASTM D7622-20

Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction

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 procedure to determine the total mercury content in a sample of crude oil. This test method can be used for total mercury determination in natural and processed liquid and oil products (gasoline, naphtha, etc.).  
1.2 This test method may be applied to samples containing between 5.0 ng/mL to 350 ng/mL of mercury. The results may be converted to mass basis.  
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

• Status: Published
• Publication Date: 31-May-2020
• ICS: 75.040 - Crude petroleum
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.03 - Elemental Analysis

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: D7622 − 20
Standard Test Method for
Total Mercury in Crude Oil Using Combustion and Direct
Cold Vapor Atomic Absorption Method with Zeeman
1
Background Correction
This standard is issued under the fixed designation D7622; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This test method covers the procedure to determine the
Barriers to Trade (TBT) Committee.
totalmercurycontentinasampleofcrudeoil.Thistestmethod
can be used for total mercury determination in natural and
2. Referenced Documents
processed liquid and oil products (gasoline, naphtha, etc.).
3
2.1 ASTM Standards:
1.2 This test method may be applied to samples containing
D1193Specification for Reagent Water
between 5.0ng⁄mLto 350ng⁄mLof mercury.The results may
D4057Practice for Manual Sampling of Petroleum and
be converted to mass basis.
Petroleum Products
1.3 The values stated in SI units are to be regarded as
D4175Terminology Relating to Petroleum Products, Liquid
standard. No other units of measurement are included in this
Fuels, and Lubricants
standard.
D4177Practice for Automatic Sampling of Petroleum and
Petroleum Products
1.4 This work has been published in “Determination of
2
D6299Practice for Applying Statistical Quality Assurance
Mercury in Crude Oil by Atomic Spectroscopy.”
and Control Charting Techniques to Evaluate Analytical
1.5 WARNING—Mercury has been designated by many
Measurement System Performance
regulatory agencies as a hazardous substance that can cause
D6300Practice for Determination of Precision and Bias
serious medical issues. Mercury, or its vapor, has been dem-
Data for Use in Test Methods for Petroleum Products,
onstrated to be hazardous to health and corrosive to materials.
Liquid Fuels, and Lubricants
Use Caution when handling mercury and mercury-containing
D6792Practice for Quality Management Systems in Petro-
products. See the applicable product Safety Data Sheet (SDS)
leum Products, Liquid Fuels, and Lubricants Testing
for additional information. The potential exists that selling
Laboratories
mercuryormercury-containingproducts,orboth,isprohibited
D7482Practice for Sampling, Storage, and Handling of
bylocalornationallaw.Usersmustdeterminelegalityofsales
Hydrocarbons for Mercury Analysis
in their location.
D7623Test Method for Total Mercury in Crude Oil Using
1.6 This standard does not purport to address all of the
Combustion-GoldAmalgamation and Cold VaporAtomic
safety concerns, if any, associated with its use. It is the
Absorption Method
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 3. Terminology
mine the applicability of regulatory limitations prior to use.
3.1 Fordefinitionsoftermsusedinthistestmethod,referto
1.7 This international standard was developed in accor-
Terminology D4175.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Summary of Test Method
4.1 Controlled heating following thermal decomposition of
the analysis sample in air is used to liberate mercury. The
1
This test method is under the jurisdiction of ASTM Committee D02 on
sample is placed into the sample boat, which is inserted in the
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 D7622–10 (2015). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/D7622-20. contact ASTM Customer Service at [e-mail]. 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, West Conshohocken, PA 19428-2959. United States
1

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D7622 − 20
first chamber of the atomizer, where the sample is heated at 6.1.3 The heated analytical cell shall be capable to prevent
controlled tempe
...

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: D7622 − 10 (Reapproved 2015) D7622 − 20
Standard Test Method for
Total Mercury in Crude Oil Using Combustion and Direct
Cold Vapor Atomic Absorption Method with Zeeman
1
Background Correction
This standard is issued under the fixed designation D7622; 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 procedure to determine the total mercury content in a sample of crude oil. This test method can
be used for total mercury determination in natural and processed liquid and oil products (gasoline, naphtha, etc.).
1.2 This test method may be applied to samples containing between 5.0 ng ⁄mL to 350 ng ⁄mL of mercury. The results may be
converted to mass basis.
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
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
ε1
D7622 – 10 (2015). . DOI: 10.1520/D7622-10R15.10.1520/D7622-20.
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 [e-mail]. 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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D7622 − 20
D7482 Practice for Sampling, Storage, and Handling of Hydro
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