ASTM D2251-96

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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 2251 – 96
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
Metal Corrosion by Halogenated Organic
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Solvents and Their Admixtures
This standard is issued under the fixed designation D 2251; 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 capacity, with a 24/40 standard-taper joint.
5.2 Reflux Condenser—Condenser with a 24/40 standard-
1.1 This test method covers the evaluation of the corrosive-
taper joint, 650 mm in length.
ness to metals by halogenated organic solvents and their
5.3 Bath—Oil or water bath, for maintaining a temperature
admixtures for cold cleaning applications.
slightly higher than the initial boiling point of the sample. A
NOTE 1—The test method described herein is an adaptation of Test
support shall be provided to hold the flask upright.
Method D 130.
5.4 Thermometer—An ASTM High Distillation Thermom-
1.2 This standard does not purport to address all of the
eter having a range from 30 to 760°F and conforming to the
safety concerns, if any, associated with its use. It is the
requirements for Thermometer 8F or a range from − 2 to 400°C
responsibility of the user of this standard to establish appro-
conforming to the requirements for Thermometer 8C as pre-
priate safety and health practices and determine the applica-
scribed in Specification E 1 or other thermometer of suitable
bility of regulatory limitations prior to use.
design and range.
5.5 Test Tubes, 150 mm in length, 19 mm in diameter, with
2. Referenced Documents
standard-taper, ground-glass stopped.
2.1 ASTM Standards:
6. Materials
D 130 Test Method for Detection of Copper Corrosion from
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1
Petroleum Products by the Copper Strip Tarnish Test
6.1 Metal Strips—Strips of various metals about ⁄2 in. (12
D 235 Specification for Mineral Spirits (Petroleum Spirits) mm) in width and about 3 in. (76 mm) in length. A suggested
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(Hydrocarbon Dry Cleaning Solvent) selection of metals includes copper, brass, aluminum, steel, and
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E 1 Specification for ASTM Thermometers galvanized iron. Other metals likely to be encountered may
also be used for this test.
3. Summary of Test Method
6.2 Polishing Materials—Silicon carbide or alumina-grit
3.1 Polished metal strips are immersed in a given quantity
paper of varying degrees of fineness including 240-grit silicon
of sample and heated at reflux temperature for 60 min. At the
carbide paper or cloth; also a supply of 150-mesh silicon
end of this period, the metal strips are removed and examined
carbide grain and pharmaceutical-grade absorbent cotton.
for evidence of corrosion. Similar metal strips are immersed in
6.3 Cleaning Solvent—Noncorrosive mineral spirits, such
a given quantity of sample in closed containers and held at
as Specification D 235 on hydrocarbon dry cleaning solvent.
room temperature for 10 days. At the end of this period, the
7. Preparation of Test Strips
strips are removed and examined.
7.1 Surface Preparation—Remove all surface blemishes
4. Significance and Use
from both sides of the strip with silicon carbide or alumina-grit
4.1 These tests are to be used as a guide in selecting or paper of such degree of fineness as needed to accomplish the
eliminating certain solvents or grades of solvents used for desired results efficiently. Finish with 240-grit silicon carbide
cleaning or degreasing metal parts. paper, removing all marks that may have been made by other
grades of paper used previously. Immerse the strip in noncor-
5. Apparatus
rosive mineral spirits, from which it may be withdrawn
5.1 Flask—Erlenmeyer flask, borosilicate glass, 125-mL
immediately for final polishing, or in which it may be stored
for future use.
7.2 Final Polishing—Remove a strip from the noncorrosive
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This test method is under the jurisdiction of ASTM Committee D-26 on
mineral spirits. Handle only with stainless steel forceps; do not
Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct
touch with the fingers. Polish the main surfaces with silicon
responsibility of Subcommittee D26.04 on Test Methods.
Current edition approved Dec. 10, 1996. Published June 1997. Originally
carbide grains on absorbent cotton. Rub in the direction of the
published as D 2251 – 64 T. Last previous edition D 2251 – 92.
long axis of the strip, carrying the stroke beyond the end of the
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Annual Book of ASTM Standards, Vol 05.01.
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strip before reversing the direction. Clean all metal dust from
Annual Book of ASTM Standards, Vol 06.04.
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Annual Book of AST
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