ASTM D1280-00
(Test Method)Standard Test Method for Total Immersion Corrosion Test for Soak Tank Metal Cleaners
Standard Test Method for Total Immersion Corrosion Test for Soak Tank Metal Cleaners
SCOPE
1.1 This test method covers determination of the corrosive effects of soak tank metal cleaners on all metals other than aluminum and its alloys, under conditions of total immersion, by quantitative measurement of weight change or by qualitative visual determination of change. The test determines the effects of the cleaner on metals being cleaned, and does not determine the life of the cleaner or of the containing equipment.
1.2 When the test is used to assist in the choice of material for a specific use, the test conditions should simulate the conditions of use as closely as practicable.
1.3 Where no further processing subsequent to cleaning is indicated, a test for the effect of residual cleaner on the corrosion behavior of the material may be required.
1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.> Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.
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Designation:D1280–00
Standard Guide for
Total Immersion Corrosion Test for Soak Tank Metal
Cleaners
This standard is issued under the fixed designation D 1280; 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 4. Apparatus
1.1 This guide covers determination of the corrosive effects 4.1 Test Tubes, of a suitable material 38 mm in diameter by
of soak tank metal cleaners on all metals other than aluminum 300 mm in length, having a capacity of about 300 mL. The
and its alloys, under conditions of total immersion, by quanti- tubes shall be chosen so that the specimens will remain fully
tative measurement of weight change or by qualitative visual immersed during the test, and the ratio of area of immersed
determination of change. The test determines the effects of the metal to the volume of solution will be prescribed in 7.1, with
cleaner on metals being cleaned, and does not determine the sufficient space provided for foam formation.
life of the cleaner or of the containing equipment. 4.2 Condensers,Allihn-type, having jackets 200 to 250 mm
1.2 When the test is used to assist in the choice of material in length, except that condensers will not be required for tests
for a specific use, the test conditions should simulate the run at room temperature.
conditions of use as closely as practicable. 4.3 Stoppers or Joints—The connection between test tube
1.3 Where no further processing subsequent to cleaning is and condenser optionally may be either standard-taper joints or
indicated, a test for the effect of residual cleaner on the rubber stoppers preboiled in aqueous caustic soda to remove
corrosion behavior of the material may be required. free sulfur, and boiled in a sufficient number of changes of
1.4 This standard does not purport to address all of the distilled water until neutral.
safety concerns, if any, associated with its use. It is the 4.4 Constant-Temperature Device—Any suitable means
responsibility of the user of this standard to establish appro- may be employed for maintaining the solutions actively at the
priate safety and health practices and determine the applica- boiling point for tests conducted at that temperature. For tests
bility of regulatory limitations prior to use. Material Safety made at other temperatures, a suitable constant-temperature
Data Sheets are available for reagents and materials. Review bath shall be provided to maintain the required temperature
them for hazards prior to usage. within 62°F (1°C). For control testing at room temperature, it
is suggested that the solution be maintained at 95 6 2°F (35 6
2. Referenced Documents
1°C), which, being slightly above most room temperatures, is
2.1 ASTM Standards:
easy to maintain by heat input.
D 930 Test Method for Total Immersion Corrosion Test of 4.5 Coating Apparatus, shall be provided suitable for pro-
Water-Soluble Aluminum Cleaners
ducing a uniform film of cleaner on the surface of the test
specimen, for testing the effects of residual cleaner on the
3. Significance and Use
surfaces of cleaned metals (Section 10).
3.1 This guide is used to distinguish soak tank metal
4.6 Humidity Chamber, for exposing the contaminated
cleaners that are excessively corrosive to metals (other than
specimens at 90 % relative humidity as specified in 10.1.3.
aluminum and its alloys which are covered by Method D 930).
5. Test Specimens
The users will define the degree of corrosion considered
excessive, in terms of weight loss per unit of surface area or in
5.1 The test specimens shall be identical in composition,
terms of changes in appearance, or both. metallurgy, and surface finishing, with the conditions of the
metal at the stage where cleaning will be applied in practice.
The specimens shall have an area between 0.300 and 0.375
This guide is under the jurisdiction of ASTM Committee D-12 on Soaps and
dm , and a length not to exceed 200 mm. (A specimen 18 by
Other Detergents and is the direct responsibility of Subcommittee D12.16 on Hard
85 by 1 mm in thickness would have an area of 0.327 dm .)At
Surface Cleaning.
Current edition approved Jan. 10, 2000. Published March 2000. Originally least two, and preferably four, replicates shall be tested in each
published as D 1280 – 53. Last previous edition D 1280 – 89 (1995).
Annual Book of ASTM Standards, Vol 15.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D1280
concentrationofcleanersolutionprescribedin7.2.Thenumber present in the test tubes. A blank test of either two or four
of replicates under test shall be recorded. replicates shall be made in freshly boiled distilled water.
7.2.2 When the manufacturer’s recommendations are avail-
6. Precleaning Test Specimens
able, make the test at the following relative concentrations
6.1 Make ready the following pre-cleaning materials for
(based on the average concentrations suggested), recording the
removal of soil present on the metal surface prior to corrosion
percentages these represent: (1) one half the concentration
testing:
recommended, ( 2) the concentration recommended, and (3)
6.1.1 Place 200 mLof trichloroethylene in a 250-mLbeaker
twice the concentration recommended. Make a blank test of
and maintain at room temperature.
either two or four replicates in freshly boiled distilled water,
6.1.2 Prepare a vapor degreasing bath by heating 150 to 200
submitting them otherwise to exactly the same procedure
mL of trichloroethylene in a 1-L beaker, the degree of
followed for the specimens immersed in cleaner solution.
vaporizationbeingcontrolledtopermitvapordegreasingofthe
7.3 Water—The water used in preparing the water-soluble
specimens when held in the beaker; or, alternatively, fill a wash
cleaner solutions shall be freshly boiled distilled water.
bottle containing either of these solvents at room temperature.
7.4 Temperature— In the absence of manufacturer’s recom-
6.1.3 Maintain a 250-mLbeaker of either anhydrous metha-
mendations, make the test at the boiling point of the solution.
nol or isopropanol at 122°F (50°C).
With available recommendations, make the test at 206 2°F (11
6.1.4 Maintain a 250-mL beaker of distilled water at 122°F
6 1°C) below and 20 6 2°F (11 6 1°C) above the average
(50°C).
recommended temperature, or at the boiling point of the
6.1.5 Maintain a 250-mL beaker of redistilled acetone at
solution if it is lower. Record the temperature of the test in any
room temperature.
case.
6.1.6 Placeasmallswaboffreshabsorbentcottonineachof
the beakers (6.1.1-6.1.5).
8. Procedure for Quantitative Weight Loss Test
6.2 Immediately prior to their use in the test, clean the test
specimens as follows: 8.1 Weigh the cleaned dry test specimens to the nearest
6.2.1 Immerse the test specimens in the beaker of trichlo- 0.001 g.
roethylene (6.1.1) and immediately swab the surfaces of the
8.2 Transfer the specimens individually to test tubes con-
individual specimens thoroughly, using clean forceps to hold
taining the preheated cleaner solutions, using only one speci-
both the cotton swab and the test specimen.
men per tube. Attach the tubes to reflux condensers and
6.2.2 Shake off excess solvent and either transfer the speci-
maintain at the required temperature, adding a small piece of
men to the vapor degreasing bath (6.1.2) long enough to
unglazed porcelain to prevent bumping. Expose for a period of
observe the vapor completely covering and condensing on the
2 h. Other exposure periods may also be observed where
specimen, or thoroughly wash the specimen with a stream of
appropriate.
fresh solvent from the wash bottle.
8.3 Remove the strips at the end of the exposure period and
6.2.3 Swab the specimens separately in the beaker of
proceed as follows:
alcohol (6.1.3) and shake free from excess alcohol.
8.3.1 Hold the specimen in forceps and rinse thoroughly in
6.2.4 Transfer the specimens to the beaker of distilled water
a 1-L beaker into which tap water is flowing rapidly.
(6.1.4). Swab carefully and shake free from excess water.
8.3.2 Rinse thoroughly in distilled water at room tempera-
6.2.5 Immerse the specimens separately several times in the
ture.
beaker of acetone (6.1.5), and shake free from acetone.
8.3.3 Rinse with a stream of acetone from a wash bottle.
6.2.6 If the specimens are to be weighed, dry in a vacuum
Shake free from acetone and dry.
desiccator or in a low-temperature oven at 100°F (37.7°C).
8.3.4 Examine for, and record any of the following visible
...
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