Standard Guide for Total Immersion Corrosion Test for Soak Tank Metal Cleaners

SIGNIFICANCE AND USE
This guide is used to distinguish soak tank metal cleaners that are excessively corrosive to metals (other than aluminum and its alloys which are covered by Method D 930). The users will define the degree of corrosion considered excessive, in terms of weight loss per unit of surface area or in terms of changes in appearance, or both.
SCOPE
1.1 This guide 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 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.

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Historical
Publication Date
30-Sep-2007
Current Stage
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ASTM D1280-00(2007) - Standard Guide for Total Immersion Corrosion Test for Soak Tank Metal Cleaners
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1280 − 00(Reapproved 2007)
Standard Guide for
Total Immersion Corrosion Test for Soak Tank Metal
Cleaners
This standard is issued under the fixed designation D1280; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope aluminum and its alloys which are covered by Method D930).
The users will define the degree of corrosion considered
1.1 This guide covers determination of the corrosive effects
excessive, in terms of weight loss per unit of surface area or in
of soak tank metal cleaners on all metals other than aluminum
terms of changes in appearance, or both.
and its alloys, under conditions of total immersion, by quanti-
tative measurement of weight change or by qualitative visual
4. Apparatus
determination of change. The test determines the effects of the
4.1 Test Tubes, of a suitable material 38 mm in diameter by
cleaner on metals being cleaned, and does not determine the
300 mm in length, having a capacity of about 300 mL. The
life of the cleaner or of the containing equipment.
tubes shall be chosen so that the specimens will remain fully
1.2 When the test is used to assist in the choice of material
immersed during the test, and the ratio of area of immersed
for a specific use, the test conditions should simulate the
metal to the volume of solution will be prescribed in 7.1, with
conditions of use as closely as practicable.
sufficient space provided for foam formation.
1.3 Where no further processing subsequent to cleaning is
4.2 Condensers, Allihn-type, having jackets 200 to 250 mm
indicated, a test for the effect of residual cleaner on the
in length, except that condensers will not be required for tests
corrosion behavior of the material may be required.
run at room temperature.
1.4 This standard does not purport to address all of the
4.3 Stoppers or Joints—The connection between test tube
safety concerns, if any, associated with its use. It is the
and condenser optionally may be either standard-taper joints or
responsibility of the user of this standard to establish appro-
rubber stoppers preboiled in aqueous caustic soda to remove
priate safety and health practices and determine the applica-
free sulfur, and boiled in a sufficient number of changes of
bility of regulatory limitations prior to use. Material Safety
distilled water until neutral.
Data Sheets are available for reagents and materials. Review
4.4 Constant-Temperature Device—Any suitable means
them for hazards prior to usage.
may be employed for maintaining the solutions actively at the
2. Referenced Documents
boiling point for tests conducted at that temperature. For tests
made at other temperatures, a suitable constant-temperature
2.1 ASTM Standards:
bath shall be provided to maintain the required temperature
D930 Test Method of Total Immersion Corrosion Test of
within 62°F (1°C). For control testing at room temperature, it
Water-Soluble Aluminum Cleaners (Withdrawn 2001)
is suggested that the solution be maintained at 95 6 2°F (35 6
1°C), which, being slightly above most room temperatures, is
3. Significance and Use
easy to maintain by heat input.
3.1 This guide is used to distinguish soak tank metal
4.5 Coating Apparatus, shall be provided suitable for pro-
cleaners that are excessively corrosive to metals (other than
ducing a uniform film of cleaner on the surface of the test
specimen, for testing the effects of residual cleaner on the
This guide is under the jurisdiction of ASTM Committee D12 on Soaps and
surfaces of cleaned metals (Section 10).
Other Detergents and is the direct responsibility of Subcommittee D12.16 on Hard
Surface Cleaning. 4.6 Humidity Chamber, for exposing the contaminated
Current edition approved Oct. 1, 2007. Published October 2007. Originally
specimens at 90 % relative humidity as specified in 10.1.3.
approved in 1953. Last previous edition approved in 2000 as D1280 – 00. DOI:
10.1520/D1280-00R07.
5. Test Specimens
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 The test specimens shall be identical in composition,
Standards volume information, refer to the standard’s Document Summary page on
metallurgy, and surface finishing, with the conditions of the
the ASTM website.
metal at the stage where cleaning will be applied in practice.
The last approved version of this historical standard is referenced on
www.astm.org. The specimens shall have an area between 0.300 and 0.375
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D1280 − 00 (2007)
dm , and a length not to exceed 200 mm. (A specimen 18 by prepared in 2000-g quantities. Boil the solutions for 30 min
85 by 1 mm in thickness would have an area of 0.327 dm .)At unless otherwise specified. In case the cleaner is not soluble to
least two, and preferably four, replicates shall be tested in each the extent noted in the stock solutions indicated, record this
concentrationofcleanersolutionprescribedin7.2.Thenumber fact, but nevertheless continue the test with the specified total
of replicates under test shall be recorded. amounts of cleaner present in the test tubes. A blank test of
either two or four replicates shall be made in freshly boiled
6. Precleaning Test Specimens
distilled water.
6.1 Make ready the following pre-cleaning materials for
7.2.2 When the manufacturer’s recommendations are
removal of soil present on the metal surface prior to corrosion
available, make the test at the following relative concentrations
testing:
(based on the average concentrations suggested), recording the
6.1.1 Place 200 mLof trichloroethylene in a 250-mLbeaker
percentages these represent: (1) one half the concentration
and maintain at room temperature.
recommended, ( 2) the concentration recommended, and (3)
6.1.2 Prepare a vapor degreasing bath by heating 150 to 200
twice the concentration recommended. Make a blank test of
mL of trichloroethylene in a 1-L beaker, the degree of
either two or four replicates in freshly boiled distilled water,
vaporizationbeingcontrolledtopermitvapordegreasingofthe
submitting them otherwise to exactly the same procedure
specimens when held in the beaker; or, alternatively, fill a wash
followed for the specimens immersed in cleaner solution.
bottle containing either of these solvents at room temperature.
7.3 Water—The water used in preparing the water-soluble
6.1.3 Maintain a 250-mLbeaker of either anhydrous metha-
cleaner solutions shall be freshly boiled distilled water.
nol or isopropanol at 122°F (50°C).
6.1.4 Maintain a 250-mL beaker of distilled water at 122°F
7.4 Temperature— In the absence of manufacturer’s
(50°C).
recommendations, make the test at the boiling point of the
6.1.5 Maintain a 250-mL beaker of redistilled acetone at
solution. With available recommendations, make the test at
room temperature.
206 2°F (11 6 1°C) below and 20 6 2°F (11 6 1°C) above
6.1.6 Placeasmallswaboffreshabsorbentcottonineachof
the average recommended temperature, or at the boiling point
the beakers (6.1.1-6.1.5).
of the solution if it is lower. Record the temperature of the test
in any case.
6.2 Immediately prior to their use in the test, clean the test
specimens as follows:
8. Procedure for Quantitative Weight Loss Test
6.2.1 Immerse the test specimens in the beaker of trichlo-
roethylene (6.1.1) and immediately swab the surfaces of the
8.1 Weigh the cleaned dry test specimens to the nearest
individual specimens thoroughly, using clean forceps to hold
0.001 g.
both the cotton swab and the test specimen.
8.2 Transfer the specimens individually to test tubes con-
6.2.2 Shake off excess solvent and either transfer the speci-
taining the preheated cleaner solutions, using only one speci-
men to the vapor degreasing bath (6.1.2) long enough to
men per tube. Attach the tubes to reflux condensers and
observe the vapor completely covering and condensing on the
maintain at the required temperature, adding a small piece of
specimen, or thoroughly wash the specimen with a stream of
unglazed porcelain to prevent bumping. Expose for a period of
fresh solvent from the wash bottle.
2 h. Other exposure periods may also be observed where
6.2.3 Swab the specimens separately in the beaker of
appropriate.
alcohol (6.1.3) and shake free from excess alcohol.
6.2.4 Transfer the specimens to the beaker of distilled water
8.3 Remove the strips at the end of the exposure period and
(6.1.4). Swab carefully and shake free from excess water.
proceed as follows:
6.2.5 Immerse the specimens separately several times in the
8.3.1 Hold the specimen in forceps and rinse thoroughly in
beaker of acetone (6.1.5), and shake free from acetone.
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