ASTM E1068-85(1996)e1
(Test Method)Standard Test Method for Testing Nonmetallic Seal Materials by Immersion in a Simulated Geothermal Test Fluid
Standard Test Method for Testing Nonmetallic Seal Materials by Immersion in a Simulated Geothermal Test Fluid
SCOPE
1.1 This test method covers a procedure for a laboratory test for performing an initial evaluation (screening) of non-metallic seal materials by immersion in a simulated geothermal test fluid.
1.2 The values stated in SI units are to be regarded as the standard.
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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 6 and 11.7.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: E 1068 – 85 (Reapproved 1996)
Standard Test Method for
Testing Nonmetallic Seal Materials by Immersion in a
Simulated Geothermal Test Fluid
This standard is issued under the fixed designation E 1068; 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.
e NOTE—Keywords were added editorially in April 1996.
1. Scope 3.2 Specimens exposed to the test fluid for a given test may
be from a single material to prevent interaction between
1.1 This test method covers a procedure for a laboratory test
dissimilar materials.
for performing an initial evaluation (screening) of non-metallic
3.3 The samples shall be unstressed during exposure to the
seal materials by immersion in a simulated geothermal test
test fluid.
fluid.
3.4 Tests of mechanical and physical properties shall be
1.2 The values stated in SI units are to be regarded as the
performed on specimens before and after immersion testing.
standard.
1.3 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
4.1 This test method is intended for laboratory screening of
responsibility of the user of this standard to establish appro-
materials. Due to large differences in the composition, pres-
priate safety and health practices and determine the applica-
sure, and temperature of geothermal fluids, this test method
bility of regulatory limitations prior to use. For specific
may not correlate with actual service conditions. It does not
precautionary statements, see Section 6 and 11.7.
consider the effects of geothermal fluid combined with oxidiz-
2. Referenced Documents ing environments, stress loading, or thermal cycling.
2.1 ASTM Standards:
5. Apparatus
D 395 Test Methods for Rubber Property—Compression
2 5.1 Test Vessel, shall be capable of containing the test fluid
Set
at the test pressure and temperature. It is suggested that
D 412 Test Methods for Vulcanized Rubber and Thermo-
2 reference be made to the ASME Boiler and Pressure Vessel
plastic Rubbers and Thermoplastic Elastomers—Tension
Code, Section VIII.
D 471 Test Method for Rubber Property—Effect of Liq-
2 5.2 Specimen Supports, shall be capable of holding speci-
uids
2 mens submerged in the liquid and specimens suspended in the
D 575 Test Methods for Rubber Properties in Compression
vapor so that the specimens are unstressed and do not touch
D 1415 Test Method for Rubber Property—International
other specimens or the walls of the vessel.
Hardness
5.3 The apparatus, as illustrated in Fig. 1, shall include a
D 2240 Test Method for Rubber Property—Durometer
means of heating the test vessel to a controlled temperature as
Hardness
selected.
2.2 ASME Standard:
5.4 Safety Devices and Controls, should be provided to
Boiler and Pressure Vessel Code, Section VIII
protect the vessel from overpressure and overheating.
3. Summary of Method 5.5 All parts of the apparatus that shall be exposed to the
test fluid or its vapor shall be constructed of materials that are
3.1 Separate sets of material specimens are subjected to
non-reactive with the fluid. Corrosion by-products may affect
both the test liquid and its vapor at saturation conditions at the
test results.
test temperature.
6. Precautions
This test method is under the jurisdiction of ASTM Committee E-44 on Solar, 6.1 Because of the extremely corrosive nature of this testing
Geothermal, and Other Alternative Energy Sources and is the direct responsibility of
environment it is imperative that the vessel construction
Subcommittee E44.40 on Materials.
Current edition approved May 31, 1985. Published July 1985.
Annual Book of ASTM Standards, Vol 09.01.
Available from the American Society of Mechanical Engineers, 345 E. 47th St.,
New York, NY 10017.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
E 1068
TABLE 2 Standard Test Temperatures
°C °F
85 62°C 185 64°F
100 62°C 212 64°F
150 62°C 302 64°F
200 62°C 392 64°F
250 62°C 482 64°F
300 65°C 572 69°F
350 65°C 662 69°F
11.4 Inject the liquid ingredients (HCl and H O). Note that
hazardous gas (H S) will be evolved and pressure will develop
when the acid is added. All the evolved gases shall be
contained in the vessel as part of the test environment.
11.5 To ensure that the specimens are located in the proper
FIG. 1 Schematic of Test Apparatus
phase, the volume at ambient temperature of the fluid shall be
c
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