ASTM D5762-18
(Test Method)Standard Test Method for Nitrogen in Liquid Hydrocarbons, Petroleum and Petroleum Products by Boat-Inlet Chemiluminescence
Standard Test Method for Nitrogen in Liquid Hydrocarbons, Petroleum and Petroleum Products by Boat-Inlet Chemiluminescence
SIGNIFICANCE AND USE
4.1 Many nitrogen compounds can contaminate refinery catalysts. They tend to be the most difficult class of compounds to hydrogenate, so the nitrogen content remaining in the product of a hydrotreator is a measure of the effectiveness of the hydrotreating process. In lubricating oils the concentration of nitrogen is a measure of the presence of nitrogen containing additives. This test method is intended for use in plant control and in research.
SCOPE
1.1 This test method covers the determination of nitrogen in liquid hydrocarbons, including petroleum process streams and lubricating oils in the concentration range from 40 μg/g to 10 000 μg/g nitrogen. For light hydrocarbons containing less than 100 μg/g nitrogen, Test Method D4629 can be more appropriate.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in Section 6, 7.1, 8.2, and 8.2.2.
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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Designation: D5762 − 18
Standard Test Method for
Nitrogen in Liquid Hydrocarbons, Petroleum and Petroleum
1
Products by Boat-Inlet Chemiluminescence
This standard is issued under the fixed designation D5762; 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* luminescence Detection
D6299Practice for Applying Statistical Quality Assurance
1.1 Thistestmethodcoversthedeterminationofnitrogenin
and Control Charting Techniques to Evaluate Analytical
liquid hydrocarbons, including petroleum process streams and
Measurement System Performance
lubricating oils in the concentration range from 40µg⁄g to
10000µg⁄g nitrogen. For light hydrocarbons containing less
3. Summary of Test Method
than 100µg⁄g nitrogen, Test Method D4629 can be more
3.1 A hydrocarbon sample is placed on a sample boat at
appropriate.
room temperature. The sample and boat are advanced into a
1.2 The values stated in SI units are to be regarded as
high-temperature combustion tube where the nitrogen is oxi-
standard. No other units of measurement are included in this
dized to nitric oxide (NO) in an oxygen atmosphere. The NO
standard.
contacts ozone and is converted to excited nitrogen dioxide
1.3 This standard does not purport to address all of the
(NO ).ThelightemittedastheexcitedNO decaysisdetected
2 2
safety concerns, if any, associated with its use. It is the
byaphotomultipliertube,andtheresultingsignalisameasure
responsibility of the user of this standard to establish appro-
of the nitrogen contained in the sample.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 4. Significance and Use
Specific warning statements are given in Section 6, 7.1, 8.2,
4.1 Many nitrogen compounds can contaminate refinery
and 8.2.2.
catalysts.Theytendtobethemostdifficultclassofcompounds
1.4 This international standard was developed in accor-
to hydrogenate, so the nitrogen content remaining in the
dance with internationally recognized principles on standard-
product of a hydrotreator is a measure of the effectiveness of
ization established in the Decision on Principles for the
the hydrotreating process. In lubricating oils the concentration
Development of International Standards, Guides and Recom-
of nitrogen is a measure of the presence of nitrogen containing
mendations issued by the World Trade Organization Technical
additives. This test method is intended for use in plant control
Barriers to Trade (TBT) Committee.
and in research.
2. Referenced Documents
5. Apparatus
2
2.1 ASTM Standards:
5.1 Boat Inlet System,capableofbeingsealedtotheinletof
D4057Practice for Manual Sampling of Petroleum and
the combustion tube and swept with inert gas. The boats are
Petroleum Products
fabricated from platinum or quartz. To aid quantitative liquid
D4177Practice for Automatic Sampling of Petroleum and
injection, it is recommended to add a small piece of quartz
Petroleum Products
woolorsuitableequivalent(see6.8)totheboat.Theboatdrive
D4629Test Method for Trace Nitrogen in Liquid Hydrocar-
mechanism should be able to fully insert the boat into the
bons by Syringe/Inlet Oxidative Combustion and Chemi-
furnace tube inlet section. A drive mechanism that advances
and withdraws the sample boat into and out of the furnace at a
controlled and repeatable rate is required.
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
5.2 Chemiluminescence Detector, capable of measuring
Subcommittee D02.03 on Elemental Analysis.
lightemittedfromthereactionbetweennitricoxideandozone,
Current edition approved April 1, 2018. Published April 2018. Originally
and containing a variable attenuation amplifier, integrator, and
approved in 1995. Last previous edition approved in 2017 as D5762– 17. DOI:
10.1520/D5762-18.
readout.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
NOTE 1—Detectors designed to maintain the chemiluminescence reac-
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 tion cell at reduced pressure are acceptable for use and were included in
the ASTM website. the instruments used to determine the precision of this test method.
*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
---------------------- Page: 1 ----------------------
D5762 − 18
5.3 C
...
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: D5762 − 17 D5762 − 18
Standard Test Method for
Nitrogen in Liquid Hydrocarbons, Petroleum and Petroleum
1
Products by Boat-Inlet Chemiluminescence
This standard is issued under the fixed designation D5762; 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 test method covers the determination of nitrogen in liquid hydrocarbons, including petroleum process streams and
lubricating oils in the concentration range from 40 μg ⁄g to 10 000 μg ⁄g nitrogen. For light hydrocarbons containing less than
100 μg ⁄g nitrogen, Test Method D4629 can be more appropriate.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. Specific warning statements are given in Section 6, 7.1, 8.2, and 8.2.2.
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:
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D4629 Test Method for Trace Nitrogen in Liquid Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence
Detection
D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measure-
ment System Performance
3. Summary of Test Method
3.1 A hydrocarbon sample is placed on a sample boat at room temperature. The sample and boat are advanced into a
high-temperature combustion tube where the nitrogen is oxidized to nitric oxide (NO) in an oxygen atmosphere. The NO contacts
ozone and is converted to excited nitrogen dioxide (NO ). The light emitted as the excited NO decays is detected by a
2 2
photomultiplier tube, and the resulting signal is a measure of the nitrogen contained in the sample.
4. Significance and Use
4.1 Many nitrogen compounds can contaminate refinery catalysts. They tend to be the most difficult class of compounds to
hydrogenate, so the nitrogen content remaining in the product of a hydrotreator is a measure of the effectiveness of the
hydrotreating process. In lubricating oils the concentration of nitrogen is a measure of the presence of nitrogen containing
additives. This test method is intended for use in plant control and in research.
5. Apparatus
5.1 Boat Inlet System, capable of being sealed to the inlet of the combustion tube and swept with inert gas. The boats are
fabricated from platinum or quartz. To aid quantitative liquid injection, it is recommended to add a small piece of quartz wool or
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 Dec. 1, 2017April 1, 2018. Published January 2018April 2018. Originally approved in 1995. Last previous edition approved in 2017 as
D5762 – 12 (2017).D5762 – 17. DOI: 10.1520/D5762-17.10.1520/D5762-18.
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.
*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
---------------------- Page: 1 ----------------------
D5762 − 18
suitable equivalent (see 6.8) to the boat. The boat drive mechanism should be able to fully insert the boat into the furnace tube
inlet section. A drive mechanism that advances and withdraws the sample boat into and out of the furnace at a controlled and
repeatable rate is
...
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