ASTM D1748-02
(Test Method)Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet
Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet
SIGNIFICANCE AND USE
This test method is used for measuring the relative abilities of metal preservatives to prevent the rusting of steel panels under conditions of high humidity. It should not be relied upon to predict the effectiveness of a metal preservative in which high humidity is not the principal factor in the rusting.
Comparisons made by this test method should normally be limited to similar metal preservative combinations designed for similar applications. The test life required for each type of metal preservative and for each intended application should be based on actual experience with that type of preservative in the intended service.
Since the precision of the test method appears to be less than desired, a number of repeat tests may be necessary to establish the test life of a given metal preservative, and repeat tests by this test method in more than one cabinet are sometimes desirable.
The data obtained from this accelerated test is of interest only in eliminating the most unsuitable materials or for indicating a probable relative order of protection against rust under conditions of high humidity. This test method does not prescribe the exposure periods to be used for a specific product, nor the interpretation to be given to the results.
SCOPE
1.1 This test method is used for evaluating the rust-preventive properties of metal preservatives under conditions of high humidity.
1.2 The values stated in SI units are to be regarded as the standard except where the test apparatus or consumable parts are only available in other units. In such cases these will be regarded as standard. The values given in parentheses are for information only.
1.3 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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: D 1748 – 02
Designation: 366/84
Standard Test Method for
Rust Protection by Metal Preservatives in the Humidity
1
Cabinet
This standard is issued under the fixed designation D 1748; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope MIL-C-5646F Cloth, Airplane
MIL-C-15074E Corrosive Preventive Compound Finger
1.1 This test method is used for evaluating the rust-
Print Remover
preventive properties of metal preservatives under conditions
7
2.4 Society of Automotive Engineers:
of high humidity.
SAE 1009C Tee Reducer, Bulkhead on Side, Flareless Tube
1.2 The values stated in SI units are to be regarded as the
standard except where the test apparatus or consumable parts
3. Summary of Test Method
are only available in other units. In such cases these will be
3.1 Steel panels are prepared to a prescribed surface finish,
regarded as standard. The values given in parentheses are for
dipped in the test oil, allowed to drain, and then suspended in
information only.
ahumiditycabinetat48.9 6°C(120°F)foraspecifiednumber
1.3 This standard does not purport to address all of the
of hours. The oil fails or passes the test in accordance with the
safety concerns, if any, associated with its use. It is the
size and number of rust dots on the test surfaces of the panels.
responsibility of the user of this standard to consult and
establish appropriate safety and health practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 This test method is used for measuring the relative
abilities of metal preservatives to prevent the rusting of steel
2. Referenced Documents
panels under conditions of high humidity. It should not be
2.1 ASTM Standards:
relied upon to predict the effectiveness of a metal preservative
A 109/A 109M Specification for Steel, Strip, Carbon, Cold-
2 inwhichhighhumidityisnottheprincipalfactorintherusting.
Rolled
3 4.2 Comparisons made by this test method should normally
D 512 Test Methods for Chloride Ion in Water
3 be limited to similar metal preservative combinations designed
D 516 Test Method for Sulfate Ion in Water
for similar applications. The test life required for each type of
E11 Specification for Wire-Cloth Sieves for testing Pur-
4 metal preservative and for each intended application should be
poses
based on actual experience with that type of preservative in the
E 323 Specification for Perforated-Plate Sieves for testing
4 intended service.
Purposes
5 4.3 Since the precision of the test method appears to be less
2.2 Federal Standards:
than desired, a number of repeat tests may be necessary to
QQ-S-698 Steel Sheet and Strip, Low Carbon
6 establish the test life of a given metal preservative, and repeat
2.3 Military Standards:
tests by this test method in more than one cabinet are
sometimes desirable.
4.4 Thedataobtainedfromthisacceleratedtestisofinterest
1
This test method is under the jurisdiction of ASTM Committee D02 on
only in eliminating the most unsuitable materials or for
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L0.03 on Corrosion Testing of Sheet Metal Processing Fluids.
indicating a probable relative order of protection against rust
Current edition approved Nov. 10, 2002. Published February 2003. Originally
under conditions of high humidity. This test method does not
approved in 1960. Last previous edition approved in 2000 as D 1748–00.
2 prescribetheexposureperiodstobeusedforaspecificproduct,
Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 11.01. nor the interpretation to be given to the results.
4
Annual Book of ASTM Standards, Vol 14.02.
5
Available from Superintendent of Documents, U.S. Government Printing
Office, Washington, DC 20402.
6 7
Available from Standardization Documents Order Desk, Bldg. 4, Section D, Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. Warrendale, PA 15096.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1748–02
5. Apparatus day, at 7- to 8-h intervals. Remaining standard conditions shall
be closely checked once each week.The pH measurement may
5.1 The apparatus shall conform to the details shown in the
be made with wide-range indicator paper.
Annex A1.
NOTE 4—Values for pH outside the limits shown in
...
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