ASTM D2251-96(2000)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D2251–96 (Reapproved 2000)
Standard Test Method for
Metal Corrosion by Halogenated Organic
Solvents and Their Admixtures
This standard is issued under the fixed designation D2251; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 5. Apparatus
1.1 This test method covers the evaluation of the corrosive- 5.1 Flask—Erlenmeyer flask, borosilicate glass, 125-mL
ness to metals by halogenated organic solvents and their capacity, with a 24/40 standard-taper joint.
admixtures for cold cleaning applications. 5.2 Reflux Condenser—Condenser with a 24/40 standard-
taper joint, 650 mm in length.
NOTE 1—The test method described herein is an adaptation of Test
5.3 Bath—Oil or water bath, for maintaining a temperature
Method D130.
slightly higher than the initial boiling point of the sample. A
1.2 This standard does not purport to address all of the
support shall be provided to hold the flask upright.
safety concerns, if any, associated with its use. It is the
5.4 Thermometer—An ASTM High Distillation Thermom-
responsibility of the user of this standard to establish appro-
eter having a range from 30 to 760°F and conforming to the
priate safety and health practices and determine the applica-
requirementsforThermometer8Forarangefrom−2to400°C
bility of regulatory limitations prior to use.
conforming to the requirements for Thermometer 8C as pre-
scribed in Specification E1 or other thermometer of suitable
2. Referenced Documents
design and range.
2.1 ASTM Standards:
5.5 Test Tubes, 150 mm in length, 19 mm in diameter, with
D130 TestMethodforDetectionofCopperCorrosionfrom
standard-taper, ground-glass stopped.
Petroleum Products by the Copper Strip Tarnish Test
D235 Specification for Mineral Spirits (Petroleum Spirits)
6. Materials
(Hydrocarbon Dry Cleaning Solvent)
6.1 Metal Strips—Strips of various metals about ⁄2in. (12
E1 Specification for ASTM Thermometers
mm) in width and about 3 in. (76 mm) in length. A suggested
selectionofmetalsincludescopper,brass,aluminum,steel,and
3. Summary of Test Method
galvanized iron. Other metals likely to be encountered may
3.1 Polished metal strips are immersed in a given quantity
also be used for this test.
of sample and heated at reflux temperature for 60 min. At the
6.2 Polishing Materials—Silicon carbide or alumina-grit
end of this period, the metal strips are removed and examined
paper of varying degrees of fineness including 240-grit silicon
for evidence of corrosion. Similar metal strips are immersed in
carbide paper or cloth; also a supply of 150-mesh silicon
a given quantity of sample in closed containers and held at
carbide grain and pharmaceutical-grade absorbent cotton.
room temperature for 10 days. At the end of this period, the
6.3 Cleaning Solvent—Noncorrosive mineral spirits, such
strips are removed and examined.
as Specification D235 on hydrocarbon dry cleaning solvent.
4. Significance and Use
7. Preparation of Test Strips
4.1 These tests are to be used as a guide in selecting or
7.1 Surface Preparation—Remove all surface blemishes
eliminating certain solvents or grades of solvents used for
frombothsidesofthestripwithsiliconcarbideoralumina-grit
cleaning or degreasing metal parts.
paper of such degree of fineness as needed to accomplish the
desired results efficiently. Finish with 240-grit silicon carbide
1 paper, removing all marks that may have been made by other
This test method is under the jurisdiction of ASTM Committee D26 on
Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct grades of paper used previously. Immerse the strip in noncor-
responsibility of Subcommittee D26.04 on Test Methods.
rosive mineral spirits, from which it may be withdrawn
Current edition approved Dec. 10, 1996. P
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