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ASTM D7679-16(2020)

(Test Method)

Standard Test Method for Sulfur Content in Carbon Black Feedstock Oils

Standard Test Method for Sulfur Content in Carbon Black Feedstock Oils

SIGNIFICANCE AND USE
3.1 Measuring the total sulfur content of feedstock oil is often a necessary component in calculations for sulfur dioxide emissions.  
3.2 The carbon black industry measures sulfur content of feedstock oils along with sulfur content of carbon black products per Test Method D1619 in calculations to determine sulfur dioxide emissions for compliance with governmental reporting requirements.
SCOPE
1.1 This test method covers the instrumental determination of sulfur content in samples of carbon black feedstock oils. Values obtained represent the total sulfur content. Two analysis methods are available for use:    
Test Method A: High-Temperature Combustion With
Infrared Absorption Detection Procedures  
Sections 4 – 10  
Test Method B: X-Ray Fluorescence  
Sections 13 – 17  
1.2 This test method is applicable to carbon black feedstock oils derived from petroleum, coal, and other sources which include fuel oils, residues, tars, pitches, reclaimed oils, and similar materials that are normally handled as liquids. This test method is applicable to products typically containing 0 to 5 mass % sulfur.  
1.3 The results of these tests can be expressed as mass % sulfur.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.  
1.6 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-Oct-2020
ICS
75.080 - Petroleum products in general
Technical Committee
D24 - Carbon Black
Drafting Committee
D24.66 - Environment, Health, and Safety
Current Stage
Ref Project

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ASTM D7679-16(2020) - Standard Test Method for Sulfur Content in Carbon Black Feedstock OilsASTM D7679-16(2020) - Standard Test Method for Sulfur Content in Carbon Black Feedstock Oils
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ASTM D7679-16(2020) - Standard Test Method for Sulfur Content in Carbon Black Feedstock Oils
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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: D7679 − 16 (Reapproved 2020)
Standard Test Method for
1
Sulfur Content in Carbon Black Feedstock Oils
This standard is issued under the fixed designation D7679; 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
2
2.1 ASTM Standards:
1.1 This test method covers the instrumental determination
D1619 Test Methods for Carbon Black—Sulfur Content
of sulfur content in samples of carbon black feedstock oils.
D4057 Practice for Manual Sampling of Petroleum and
Values obtained represent the total sulfur content.Two analysis
Petroleum Products
methods are available for use:
D4177 Practice for Automatic Sampling of Petroleum and
Test Method A: High-Temperature Combustion Sections4–10
Petroleum Products
With
Infrared Absorption Detection Procedures
D4483 Practice for Evaluating Precision for Test Method
Test Method B: X-Ray Fluorescence Sections13–17
Standards in the Rubber and Carbon Black Manufacturing
1.2 This test method is applicable to carbon black feedstock Industries
oils derived from petroleum, coal, and other sources which
3. Significance and Use
include fuel oils, residues, tars, pitches, reclaimed oils, and
similar materials that are normally handled as liquids. This test
3.1 Measuring the total sulfur content of feedstock oil is
method is applicable to products typically containing 0 to 5
often a necessary component in calculations for sulfur dioxide
mass % sulfur.
emissions.
1.3 The results of these tests can be expressed as mass %
3.2 The carbon black industry measures sulfur content of
sulfur.
feedstock oils along with sulfur content of carbon black
products per Test Method D1619 in calculations to determine
1.4 The values stated in SI units are to be regarded as
sulfur dioxide emissions for compliance with governmental
standard. No other units of measurement are included in this
reporting requirements.
standard.
TEST METHOD A: HIGH-TEMPERATURE
1.5 This standard does not purport to address all of the
COMBUSTION WITH INFRARED ABSORPTION
safety concerns, if any, associated with its use. It is the
DETECTION PROCEDURES
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Summary of Test Method
mine the applicability of regulatory limitations prior to use.
4.1 In this test method, a sample of feedstock oil is weighed
1.6 This international standard was developed in accor-
in a combustion boat containing either a tungsten oxide based
dance with internationally recognized principles on standard-
accelerator, sand or aluminum oxide absorbent, and the sulfur
ization established in the Decision on Principles for the
content is determined by placing the boat in a tube furnace at
Development of International Standards, Guides and Recom-
1350°C in an air or oxygen-enriched atmosphere resulting in
mendations issued by the World Trade Organization Technical
complete combustion. Sulfur in the sample is completely
Barriers to Trade (TBT) Committee.
oxidized to sulfur dioxide. Moisture and particulates are
removed from the gas stream by traps filled with anhydrous
magnesium perchlorate. The gas stream is then passed through
a cell in which sulfur dioxide concentration is measured by an
infrared (IR) absorption detector at a precise wavelength in the
1
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
Black and is the direct responsibility of Subcommittee D24.66 on Environment,
2
Health, and Safety. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2020. Published December 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2010. Last previous edition approved in 2016 as D7679 – 16. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7679-16R20. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7679 − 16 (2020)
IR spectrum.The IR absorption detects sulfur dioxide through- 6.5 Sea Sand, purified by acid and calcinated (optional).
out the entire combustion process. The integral of the detector
6.6 Aluminum Oxide, optional.
signal is the basis for the total sulfur content of a sample.
4
6.7 Calibration Standards.
4.2 This test method is
...

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4.1 Measuring the total carbon content of feedstock oil is often a necessary component in calculations for carbon dioxide emissions, estimating yield of a process, or assessing product quality.  
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