ASTM D1901-00
(Test Method)Standard Test Method for Relative Evaporation Time of Halogenated Organic Solvents and Their Admixtures
Standard Test Method for Relative Evaporation Time of Halogenated Organic Solvents and Their Admixtures
SCOPE
1.1 This test method covers the measurement of the relative evaporation time of halogenated organic solvents and their admixtures. This test method is not applicable in the presence of excessive drafts or high-velocity air currents.
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.
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Designation:D1901–00
Standard Test Method for
Relative Evaporation Time of Halogenated
Organic Solvents and Their Admixtures
This standard is issued under the fixed designation D 1901; 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 having a horizontal scribe mark across the width of the panel
25 mm (1 in.) from one 100-mm edge.
1.1 This test method covers the measurement of the relative
5.2 Support Base to hold the panel at 60 6 1° from the
evaporation time of halogenated organic solvents and their
horizontal.
admixtures. This test method is not applicable in the presence
5.3 Stopwatch, or electric interval timer.
of excessive drafts or high-velocity air currents.
5.4 Graduate, 10-mL, with pouring lip.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Reagents
responsibility of the user of this standard to establish appro-
6.1 Perchloroethylene, initial boiling point 121°C, boiling
priate safety and health practices and determine the applica-
range 2°C, purity 99%.
bility of regulatory limitations prior to use.
6.2 p-Xylene,99%.
2. Terminology
7. Procedure
2.1 Definition:
7.1 Place a clean, water-break-free test panel on the support
2.1.1 admixture—a blend of a halogenated hydrocarbon
base at an angle of 60 6 1° from the horizontal, with the scribe
with a nonhalogenated hydrocarbon (for example, mineral
mark at the lower end of the panel (Note 1). Using the
spirits).
graduate, pour 10 mL of the material under test over the test
3. Summary of Test Method panel, being sure to get complete coverage of the entire
exposedsurface.Assoonasthe10mLoftestmaterialhasbeen
3.1 The evaporation rate is determined by measuring the
poured, observe the upper edge of the panel for a break in the
time required for complete evaporation of a thin film of the
continuity of coverage. Start the timing at the first sign of a
solvent from a sheet-metal panel in comparison with a refer-
break in liquid film coverage on the upper edge of the panel.
ence standard solvent.
Stopthetimingwhenthelastportionoffilmhasrecededbelow
4. Significance and Use
the scribe mark (Note 2).This interval between the first sign of
incompletecoverageandtherecedingofthelastportionoffilm
4.1 This test method gives valid comparisons of the evapo-
below the scribe mark is referred to as the “dry time.”
ration rates of the subject materials. These comparisons are
required for the determination of the suitability of a proposed
NOTE 1—Byplacingadoublethicknessofpapertowelingunderthetest
material for specific cleaning applications.
panel and support base, solvent runoff from the panel is absorbed.The use
of fresh paper toweling after each individual test prevents saturation of the
5. Apparatus
test area with solvent vapors and gives more reproducible results.
2 NOTE 2—Stray intermittent drafts must be avoided during the timing
5.1 Test Panel —A 1 by 100 by 150-mm (0.04 by 4 by
interval if reproducible results are to be obtained. Slight, steady air motion
6-in.) panel of aluminum, AAAlloy 6061, Temper T4 or T6,
will not appreciably affect results. The operator must avoid
...
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