ASTM D1838-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation: D 1838 – 05
Standard Test Method for
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Copper Strip Corrosion by Liquefied Petroleum (LP) Gases
This standard is issued under the fixed designation D 1838; 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. Significance and Use
1.1 This test method detects the presence of components in 4.1 Copper corrosion limits provide assurance that difficul-
liquefied petroleum gases which may be corrosive to copper. ties will not be experienced in deterioration of the copper and
copper-alloy fittings and connections that are commonly used
NOTE 1—For an equivalent copper strip test applicable to less volatile
in many types of utilization, storage, and transportation equip-
petroleum products, see Test Method D 130.
ment.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Apparatus
only.
5.1 Corrosion Test Cylinder, constructed of stainless steel
1.3 This standard does not purport to address all of the
with an O-ring removable top closure according to the dimen-
safety concerns, if any, associated with its use. It is the
sions given in Fig. 1. Provide a flexible inert hose, such as one
responsibility of the user of this standard to establish appro-
composed of aluminum or stainless steel, which permits
priate safety and health practices and determine the applica-
inverting the test cylinder as required in the procedure (see
bility of regulatory limitations prior to use. For specific
Note 2). The whole assembly shall be capable of withstanding
warning statements, see 6.1, 8.3.1, and Annex A1.
a hydrostatic test pressure of 6895 kPa (1000 psig). No leak
shall be discernible when tested at 3450 kPa (500 psig) with
2. Referenced Documents
gas.
2
2.1 ASTM Standards:
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NOTE 2—Swivel connections with an adapter to fit a 6.4 mm ( ⁄4 in.)
D 130 Test Method for Corrosiveness to Copper from
pipe may be used.
Petroleum Products by Copper Strip Test
E1 Specification forASTM Liquid-in-Glass Thermometers 5.2 Water Bath, capable of being maintained at 37.8 6
2.2 ASTM Adjuncts: 0.5°C (100 6 1°F). Incorporate suitable supports to hold the
ADJD0130, ASTM Copper Strip Corrosion Standard for test cylinder in an upright position. Make the bath deep enough
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Petroleum sothattheentirecylinderandvalveswillbecoveredduringthe
test.
3. Summary of Test Method
5.3 Temperature Sensing Device (TSD)—Capable of moni-
3.1 A polished copper strip is immersed in approximately toring the desired test temperature in the bath to within an
100 mL of the sample and exposed at a temperature of 37.8°C
accuracyof 60.5°C(1°F)orbetter.TheASTM12C(12F)total
(100°F) for1hina cylinder of suitable working pressure. At immersion thermometer has been found suitable to use in the
the end of this period, the copper strip is removed and rated as
test(seeSpecificationE1).Ifused,nomorethan25mm(1in.)
one of the four classifications of the ASTM Copper Corrosion of the mercury should extend above the surface of the bath at
Standards.
the test temperature.
5.4 Strip Polishing Vise, to hold the copper strip firmly
without marring the edges. For convenient vises see Test
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Method D 130.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.H0 on Liquefied Petroleum Gas. 6. Materials
Current edition approved May 1, 2005. Published May 2005. Originally
6.1 Wash Solvent—Use acetone or knock test grade
approved in 1961. Last previous edition D 1838–03.
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2.2.4 trimethylpentane. (Warning—Extremely flammable.
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
See Annex A1.)
Standards volume information, refer to the standard’s Document Summary page on
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6.2 Copper Strip, approximately 12.5 mm ( ⁄2 in.) wide, 1.5
the ASTM website.
1 1
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to 3.0 mm ( ⁄16 to ⁄8 in.) thick, cut approximately 75 mm (3
Available from ASTM International Headquarters. Order Adjunct No.
ADJD0130. in.) long from smooth-surfaced, hard-temper, cold-finished
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1838–05
7.1.1 As a practical manual procedure for surface prepara-
tion, a sheet of silicon carbide paper may be placed on a flat
surface and then moisten the paper with wash solvent before
rubbing the strip agains
...