ASTM D2441-95

Standard Test Method for Hydrolyzable Chlorine Compounds in Chlorinated Aromatic Hydrocarbons (Askarels) by Refluxing (Withdrawn 2000)

SCOPE
1.1 This test method covers the determination of hydrolyzable chlorine compounds in chlorinated aromatic hydrocarbons (askarels).  
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 a specific hazard statement, see Section 8.  
1.3 The values stated in SI units are to be regarded as the standard.

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1994
• Withdrawal Date: 09-Oct-2000
• ICS: 71.080.20 - Halogenated hydrocarbons
• Technical Committee: D27 - Electrical Insulating Liquids and Gases
• Drafting Committee: D27.06 - Chemical Test

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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: D 2441 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Hydrolyzable Chlorine Compounds in Chlorinated Aromatic
1
Hydrocarbons (Askarels) by Refluxing
This standard is issued under the fixed designation D 2441; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4.3 Many askarels contain polychlorinated biphenyls
(PCBs). Manufacture and sale of PCBs has been prohibited by
1.1 This test method covers the determination of hydrolyz-
Federal regulation in the United States since 1978. The
able chlorine compounds in chlorinated aromatic hydrocarbons
conditions for continued use and the handling and disposal of
(askarels).
PCBs are also regulated. Users of this and other methods for
1.2 This standard does not purport to address all of the
measuring the properties of askarels containing PCBs are
safety concerns, if any, associated with its use. It is the
responsible for following applicable Federal, state, and local
responsibility of the user of this standard to establish appro-
regulations.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
5. Interferences
hazard statement, see Section 8.
1.3 The values stated in SI units are to be regarded as the
5.1 The presence of compounds containing hydrolyzable
standard.
halogen other than chlorine, that is, bromine and iodine, will
give positive results, as will also any other foreign substance
2. Referenced Documents
capable of forming an insoluble compound with silver nitrate.
2.1 ASTM Standards:
Such material would not normally be present in an askarel.
2,3
D 1193 Specification for Reagent Water
5.2 The amount of chloride ions measured when the test is
D 1820 Test Method for Hydrolyzable Chlorine Com-
applied to normally stable askarels is very small, ranging near
pounds in Chlorinated Aromatic Hydrocarbons
1 ppm. Therefore, the test must be made in an area where the
4
(Askarels)
atmosphere is free of contaminating influences and it is
essential to make a blank determination. The value obtained on
3. Summary of Test Method
the blank will indicate the degree to which the test environ-
3.1 This test method uses a quantitative potentiometric
ment, reagents, and glassware are satisfactory for this type of
titration using silver nitrate in an essentially nonaqueous
testing.
medium to determine chloride ions. These are obtained after
methanolic sodium hydroxide hydrolysis of unstable chlorine
6. Apparatus
compounds in chlorinated aromatic hydrocarbons of the
6.1 Flask, borosilicate glass, 500-mL, with 24/40 standard-
askarel dielectric class.
taper joint.
4. Significance and Use 6.2 Reflux Condenser, with mated 24/40 standard-taper
joint.
4.1 The measured chloride ion, reported as parts per million
5
6.3 Combination Magnetic Stirrer and Hot Plate.
in the askarel test specimen, is indicative of the relative
6
6.4 Magnetic Stirring Bar.
stability of the askarel under prescribed conditions of test.
4.2 Refluxing with methanolic sodium hydroxide offers the
6.5 Microburet, 1.0-mL capacity, graduated in 0.01-mL
detection of certain chlorine addition compounds that could be
divisions.
7
present as impurities and do not respond fully to hydrolysis at
6.6 Electrodes, silver and glass.
the lower temperature used in Test Method D 1820.
5
A Tempco, Aloe Scientific Co., St. Louis 3, MO, Catalog No. V-75655 or
1
This test method is under the jurisdiction of ASTM Committee D-27 on equivalent is satisfactory.
6
Electrical Insulating Liquids and Gasesand is the direct responsibility of Subcom- A TFE-fluorocarbon-covered, 1-in. long magnetic stirring bar from Fisher
mittee D27.06on Chemical Test. Scientific Co., Catalog No. 9-311-9 or equivalent is satisfactory.
7
Current edition approved June 15, 1995. Published August 1995. Originally Beckman Catalog No. 39261 silver billet electrode and Catalog No. 40498
published as D 2441 – 65 T. Last previous edition D 2441 – 89. glass electrode have been found satisfactory for this purpose. Although the silver
2
Annual Book of ASTM Standards, Vol 11.01. billet-glass electrode system is preferred, a silver electrode with a mercurous sulfate
3
Annual Book of ASTM Standards, Vol 10.01. reference electrode may be used. However, a silver-silver chloride electrode system
4
Annual Book of ASTM Standards, Vol 10.03. should not be used.
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D 2441
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6.7 Potentiometer, suitable for
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