ASTM E256-09

Standard Test Method for Chlorine in Organic Compounds by Sodium Peroxide Bomb Ignition (Withdrawn 2018)

SIGNIFICANCE AND USE
This test method may be used to determine the total chlorine content of unknown organic samples or to assay known chlorine containing organic compounds.
This test method may be used on organic materials in which the complete conversion to chloride can be accomplished by sodium peroxide bomb ignition, and which contain no other halogens.
SCOPE
1.1 This test method covers the determination of chlorine in organic compounds by sodium peroxide bomb ignition. It is intended for application to samples of organic materials containing more than 0.5 % chlorine. The procedure assumes that compounds containing halogens other than chlorine will not be present.
1.2 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific safety precautions, see 6.5.2, Section 7, 8.3, and 8.9.
1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
Note 1—Other test methods based on oxygen bomb combustion for analysis for chlorine are described in Test Method D808, Test Method D2361, and Test Method D4208.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
WITHDRAWN RATIONALE
This test method covers the determination of chlorine in organic compounds by sodium peroxide bomb ignition. It is intended for application to samples of organic materials containing more than 0.5 % chlorine. The procedure assumes that compounds containing halogens other than chlorine will not be present.
Formerly under the jurisdiction of Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals, this test method was withdrawn in January 2018 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2009
• Withdrawal Date: 18-Jan-2018
• ICS: 71.040.40 - Chemical analysis
• ICS: 71.060.20 - Oxides
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E256 − 09
Standard Test Method for
Chlorine in Organic Compounds by Sodium Peroxide Bomb
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Ignition
This standard is issued under the fixed designation E256; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* D4208Test Method for Total Chlorine in Coal by the
Oxygen Bomb Combustion/Ion Selective Electrode
1.1 Thistestmethodcoversthedeterminationofchlorinein
Method
organic compounds by sodium peroxide bomb ignition. It is
E180Practice for Determining the Precision of ASTM
intended for application to samples of organic materials con-
Methods for Analysis and Testing of Industrial and Spe-
taining more than 0.5% chlorine. The procedure assumes that
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cialty Chemicals (Withdrawn 2009)
compoundscontaininghalogensotherthanchlorinewillnotbe
E200Practice for Preparation, Standardization, and Storage
present.
of Standard and Reagent Solutions for ChemicalAnalysis
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Summary of Test Method
responsibility of the user of this standard to establish appro-
3.1 The sample is heated in a closed bomb with sodium
priate safety and health practices and determine the applica-
peroxide in the presence of an accelerator (potassium nitrate)
bility of regulatory limitations prior to use. For specific safety
and an oxygen-bearing compound (sucrose). The chlorine is
precautions, see 6.5.2, Section 7, 8.3, and 8.9.
converted to chloride. The contents of the bomb are dissolved
1.3 ReviewthecurrentMaterialSafetyDataSheets(MSDS)
in water. The solution is acidified and the chloride is deter-
for detailed information concerning toxicity, first aid
mined by titrating the excess of silver nitrate solution used to
procedures, and safety precautions.
precipitate the chloride.
NOTE 1—Other test methods based on oxygen bomb combustion for
analysis for chlorine are described in Test Method D808, Test Method
4. Significance and Use
D2361, and Test Method D4208.
4.1 This test method may be used to determine the total
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this chlorine content of unknown organic samples or to assay
known chlorine containing organic compounds.
standard.
4.2 This test method may be used on organic materials in
2. Referenced Documents
which the complete conversion to chloride can be accom-
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2.1 ASTM Standards: plished by sodium peroxide bomb ignition, and which contain
no other halogens.
D808TestMethodforChlorineinNewandUsedPetroleum
Products (High Pressure Decomposition Device Method)
5. Apparatus
D1193Specification for Reagent Water
3
4
D2361TestMethodforChlorineinCoal(Withdrawn2008)
5.1 Sodium Peroxide Bomb, flame ignition type, 22-mL
capacity.Thisconsistsofa99%nickelfusioncup,99%nickel
cap cover, lead gaskets, a bomb body, a screw cap, a wrench,
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an ignition housing, a bomb socket, glass mixing rod, and a
This test method is under the jurisdiction of ASTM Committee D16 on
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
sodium peroxide measuring dipper. A less expensive nickel-
Subcommittee D16.15 on Industrial and Specialty General Standards.
plated brass cap cover may be substituted.
Current edition approved Oct. 1, 2009. Published November 2009. Originally
ε1
approved in 1965. Last previous edition approved in 2003 as E256–98 (2003) .
DOI: 10.1520/E0256-09.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or The sole source of supply of the ignition bomb and assembly known to the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM committee at this time is Parr Instrument Co., Moline, IL. The 22-mLfusion cup is
Standards volume information, refer to the standard’s Document Summary page on part No. N-200. If you are aware of alternative suppliers, please provide this
the ASTM website. information to ASTM International Headquarters. Your comments will receive
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The last approved version of this historical standard is referenced on careful consideration at a meeting of the responsible technical committee , which
www.astm.org. you may attend.
*A Summary of Changes section appears at the end of this standard
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E256 − 09
5.2 Safety Shield—Any heavy-duty commercially available 7. Safety Prec
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