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ASTM D7662-15(2020)

(Test Method)

Standard Test Method for Carbon Content in Carbon Black Feedstock Oils

Standard Test Method for Carbon Content in Carbon Black Feedstock Oils

SIGNIFICANCE AND USE
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.  
4.2 The carbon black industry measures carbon content of feedstock oils along with carbon content of carbon black products per Test Method D7633 for Carbon Black-Carbon Content in calculations to determine carbon dioxide emissions for compliance with governmental greenhouse-gas-reporting requirements.
SCOPE
1.1 This test method covers the instrumental determination of carbon content in samples of carbon black feedstock oils. Values obtained represent the total carbon content.  
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 that typically contain 75 to 94 mass % carbon.  
1.3 The results of these tests can be expressed as mass % carbon.  
1.4 Units—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 D7662-15(2020) - Standard Test Method for Carbon 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: D7662 − 15 (Reapproved 2020)
Standard Test Method for
1
Carbon Content in Carbon Black Feedstock Oils
This standard is issued under the fixed designation D7662; 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 D4177 Practice for Automatic Sampling of Petroleum and
Petroleum Products
1.1 This test method covers the instrumental determination
D4483 Practice for Evaluating Precision for Test Method
of carbon content in samples of carbon black feedstock oils.
Standards in the Rubber and Carbon Black Manufacturing
Values obtained represent the total carbon content.
Industries
1.2 This test method is applicable to carbon black feedstock
D7633 Test Method for Carbon Black—Carbon Content
oils derived from petroleum, coal, and other sources which
include fuel oils, residues, tars, pitches, reclaimed oils, and
3. Summary of Test Method
similar materials that are normally handled as liquids. This test
3.1 In this test method, a sample of feedstock oil is weighed
method is applicable to products that typically contain 75 to 94
in a combustion boat containing a tungsten oxide based
mass % carbon.
accelerator and the carbon content is determined by placing the
1.3 The results of these tests can be expressed as mass %
boat in a tube furnace at 1350°C in an air- or oxygen-enriched
carbon.
atmosphere resulting in complete combustion. Carbon in the
sample is completely oxidized to carbon dioxide. Moisture and
1.4 Units—The values stated in SI units are to be regarded
particulates are removed from the gas stream by traps filled
as standard. No other units of measurement are included in this
with anhydrous magnesium perchlorate.The gas stream is then
standard.
passed through a cell in which carbon dioxide concentration is
1.5 This standard does not purport to address all of the
measured by an infrared (IR) absorption detector at a precise
safety concerns, if any, associated with its use. It is the
wavelength in the IR spectrum.
responsibility of the user of this standard to establish appro-
3.2 This test method is for use with commercially available
priate safety, health, and environmental practices and deter-
carbon analyzers equipped to carry out the combustion and
mine the applicability of regulatory limitations prior to use.
measurement operations automatically.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.3 The carbon analyzer shall be calibrated using an appro-
ization established in the Decision on Principles for the
priate calibration standard (see 6.5).
Development of International Standards, Guides and Recom-
3.4 The instrument may be configured to analyze more than
mendations issued by the World Trade Organization Technical
one element such as a carbon-sulfur analyzer. In this case, the
Barriers to Trade (TBT) Committee.
analyzer has individual detectors for each element that are
2. Referenced Documents arranged in series.
2
2.1 ASTM Standards:
4. Significance and Use
D4057 Practice for Manual Sampling of Petroleum and
4.1 Measuring the total carbon content of feedstock oil is
Petroleum Products
often a necessary component in calculations for carbon dioxide
1 emissions, estimating yield of a process, or assessing product
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
quality.
Black and is the direct responsibility of Subcommittee D24.66 on Environment,
Health, and Safety.
4.2 The carbon black industry measures carbon content of
Current edition approved Nov. 1, 2020. Published December 2020. Originally
feedstock oils along with carbon content of carbon black
approved in 2010. Last previous edition approved in 2015 as D7662 – 15. DOI:
10.1520/D7662-15R20.
products per Test Method D7633 for Carbon Black-Carbon
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Content in calculations to determine carbon dioxide emissions
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
for compliance with governmental greenhouse-gas-reporting
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. requirements.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7662 − 15 (2020)
5. Apparatus 8. Preparation of Apparatus
5.1 Thereareanumberofcomm
...

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