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ASTM D3448-10
Standard Test Method for Specific Aqueous Conductance of Trichlorotrifluoroethane
STANDARD published on 1.6.2010
The information about the standard:
Designation standards: ASTM D3448-10
Note: WITHDRAWN
Publication date standards: 1.6.2010
SKU: NS-23664
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D3448-10 :
Keywords:
aqueous conductance, conductance, Aqueous conductance, Conductance and conductivity (electrical), Contamination--solvents, Ionizable contaminants, Trichlorotrifluoroethane, ICS Number Code 71.080.20 (Halogenated hydrocarbons)
Additional information
| 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. |
| 1. Scope |
|
1.1 This test method covers the determination of aqueous conductivity due to ionizable contaminants extracted from trichlorotrifluoroethane. The value of 1.9 μS/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 C2 − C1 equals 19.08. The specific conductance due to contaminants from the solvent was then calculated as follows: |
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