Standard Test Method of Aerated Total Immersion Corrosion Test for Metal Cleaners

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Historical
Publication Date
31-Dec-1988
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ASTM D1374-89 - Standard Test Method of Aerated Total Immersion Corrosion Test for Metal Cleaners
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AMERICAN SOCIETY FOR TESTING AND MATERIALS
Designation: D 1374 - 89
1916 Race St., Philadelphia. Pa. 19103
Reprinted from the Annual Book of ASTM Standards. Copyrighl ASTM
If nol listed in the currenl combined index, will appear in the next edilion.
Standard Test Method of
Aerated Total Immersion Corrosion Test for Metal Cleaners’
This standard is issued under the fixed designation D 1374; 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 (6) indicates an editorial change since the last revision or reapproval.
1. Scope room temperature, in order to remove carbon dioxide, and
then through water, at or near the temperature of test, in
1.1 This test method covers the means of determining the
order to reduce evaporation in the test cell.
corrosive effects of “metal cleaners for use in mechanical
3.3 Condensers, Allihn-type, having jackets 200 to 250
equipment,” on all metals other than aluminum and its
mm in length. Condensers are not required for tests run at
alloys, under conditions of aeration and total immersion, by
room temperature.
quantitative measurement of weight change or by qualitative
3.4 Stoppers or Joints-The connection between test tube
visual determination of change. The test is designed for the
and condenser optionally may be either standard-taper joints
determination of the effects of the cleaner on metals being
or rubber stoppers preboiled in aqueous caustic soda to
cleaned and is not for determination of the life of the cleaner
remove free sulfur and boiled in a sufficient number of
or of the containing equipment.
changes of distilled water until neutral.
1.2 When the test is used to assist in the choice of material
3.5 Constant-Temperature Device-Any suitable means
for a specific use, the test conditions should simulate the
may be employed for maintaining the solutions actively at
conditions of use as closely as practicable.
the boiling point for tests conducted at that temperature. For
1.3 Where no further processing subsequent to cleaning is
tests made at other temperatures, a suitable constant-temper-
indicated, a test for the effect of residual cleaner on the
ature bath shall be provided to maintain the required tem-
corrosion behavior of the material may be required.
perature within -CTF (1°C). For control testing at room
1.4 This standard may involve hazardous materials, oper-
temperature, it is suggested that the solution be maintained
ations, and equipment. This standard does not purport to
at 95 -C 2°F (35 +: l”C), which, being slightly above most
address all of the safety problems associated with its we. It is
room temperatures, is easy to maintain by heat input.
the responsibility of the user of this standard to establish
appropriate safety and health practices and determine the
4. Apparatus for Residual Cleaner Corrosion Test
applicability of regulatory limitations prior to use. Material
4.1 Coating Apparatus for producing a uniform film of
Safety Data Sheets are available for reagents and materials.
cleaner on the surface of the test specimens.3
Review them for hazards prior to usage.
4.2 Humidity Chamber for exposing the contaminated
2. Referenced Document
specimens at a temperature of 95°F (35°C) and 90 % relative
humidity.
2.1 ASTM Standard:
D 1280 Method of Total Immersion Corrosion Test for
5. Test Specimens
Soak Tank Metal Cleaners’
5.1 Selection of Samples-The samples selected for corro-
sion testing shall be identical in composition, metallurgy,
3. Apparatus
and surface finishing with the metal at the stage where clean-
3.1 Test Tubes fitted with a sintered-glass diffusion disk at
ing will be applied in practice.
the bottom, connected to a tubulation, for the purpose of
5.2 Size and Number of Specimens-The test specimens
saturating the solutions under test with air. The section
shall have an area between 0.300 and 0.375 dm* and a length
containing the solution under test shall be 38 mm in diam-
not to exceed 200 mm. (A specimen 18 by 85 by 1 mm in
eter by 300 mm in length, and shall have a capacity of about
thickness would have an area of 0.327 dm*.) At least two,
300 mL. The tubes shall be chosen so that the specimens will
and preferably four, replicates shall be tested in each concen-
remain fully immersed during the test, the ratio of area of
tration of cleaner solution prescribed in 7.2. The number of
immersed metal to the volume of the solution will be as
replicates under test shall be reported.
prescribed in 7.1, and sufficient space will be provided for
foam formation.
6. Preparation of Test Specimens
3.2 Source of Filtered Low-Pressure Air, for aerating the
6.1 Immediately prior to their use in the test, clean the
test solution. The air used should be bubbled through so-
test specimens as directe
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