ASTM-D3448 › Historical Revision Information
Standard Test Method for Specific Aqueous Conductance of Trichlorotrifluoroethane
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Scope
1.1 This test method covers the determination of aqueous conductivity due to ionizable contaminants extracted from trichlorotrifluoroethane. The value of 1.9 S/cm as maximum specific aqueous conductance corresponds to 0.1 ppm of chloride ion (100 ppb). It was calculated by putting the solvent specification of 0.1 ppm chloride into the equation of the subject method to find C
(C
1.2 The above is exclusive of the background specific conductance of the water used in the analysis.
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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 6.
Significance and Use
This test method allows for the determination of ionizable contaminants (expressed in terms of ppb of HCl) in trichlorotrifluoroethane via measurement of specific aqueous conductance.
This test method can be used for establishing manufacturing and purchasing specifications.
Keywords
aqueous conductance; conductance; ICS Number Code 71.080.20 (Halogenated hydrocarbons)
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71.080.20 (Halogenated hydrocarbons)
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Document Number
ASTM-D3448-85(2005)
Revision Level
1985 R05 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
May 1, 2005
Document Type
Test Method
Page Count
4 pages
Committee Number
D26.04