ASTM D5499-94(2007)
(Test Method)Standard Test Methods for Heat Resistance of Polymer Linings for Flue Gas Desulfurization Systems
Standard Test Methods for Heat Resistance of Polymer Linings for Flue Gas Desulfurization Systems
SIGNIFICANCE AND USE
The results obtained by these test methods can be used in combination with other test methods for the selection of a lining in flue gas desulfurization (FGD) systems.
These methods are intended to evaluate effects of heat alone upon a lining system as applied to a carbon steel substrate. These methods do not produce the thermal gradient that may exist in actual applications. Actual lining performance may also be effected by concurrent physical mechanical or chemical effects.
These methods evaluate major failure modes of linings applied to square test panels.
The recommended test temperatures of 200°F (93°F) and 350°F (177°C) are based on typical maximum operating zone temperatures in flue gas desulfurizations systems. Other temperatures may be evaluated as desired.
SCOPE
1.1 This test method is intended to evaluate the resistance of polymer linings applied to carbon steel substrates to elevated temperatures. Two separate methods are included as follows:
1.1.1 Test Method A Continuous elevated temperature exposure, and
1.1.2 Test Method B Cycling elevated temperature exposure.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D5499 − 94 (Reapproved2007)
Standard Test Methods for
Heat Resistance of Polymer Linings for Flue Gas
Desulfurization Systems
This standard is issued under the fixed designation D5499; 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 D4541 Test Method for Pull-Off Strength of Coatings Using
Portable Adhesion Testers
1.1 This test method is intended to evaluate the resistance of
2.2 Steel Structures Painting Council Standards (SSPC) :
polymer linings applied to carbon steel substrates to elevated
SSPC VIS 1–89 Visual Standard
temperatures. Two separate methods are included as follows:
SSPC No. SP5 Blast Cleaning to White Metal
1.1.1 Test Method A Continuous elevated temperature
SSPC PA-2 Measurement of Dry Paint Thickness with
exposure, and
Magnetic Gauges
1.1.2 Test Method B Cycling elevated temperature expo-
sure.
3. Significance and Use
1.2 The values stated in inch-pound units are to be regarded
3.1 The results obtained by these test methods can be used
as the standard. The values given in parentheses are for
in combination with other test methods for the selection of a
information only.
lining in flue gas desulfurization (FGD) systems.
1.3 This standard does not purport to address all of the
3.2 These methods are intended to evaluate effects of heat
safety concerns, if any, associated with its use. It is the
alone upon a lining system as applied to a carbon steel
responsibility of the user of this standard to establish appro-
substrate. These methods do not produce the thermal gradient
priate safety and health practices and determine the applica-
thatmayexistinactualapplications.Actualliningperformance
bility of regulatory limitations prior to use.
may also be effected by concurrent physical mechanical or
2. Referenced Documents chemical effects.
3.3 These methods evaluate major failure modes of linings
2.1 ASTM Standards:
A36/A36M Specification for Carbon Structural Steel applied to square test panels.
D660 Test Method for Evaluating Degree of Checking of
3.4 The recommended test temperatures of 200°F (93°F)
Exterior Paints
and 350°F (177°C) are based on typical maximum operating
D661 Test Method for Evaluating Degree of Cracking of
zone temperatures in flue gas desulfurizations systems. Other
Exterior Paints
temperatures may be evaluated as desired.
D714 Test Method for Evaluating Degree of Blistering of
Paints
4. Apparatus
D772 Test Method for Evaluating Degree of Flaking (Scal-
4.1 Forced-air Circulation Oven , capable of maintaining
ing) of Exterior Paints
the selected test temperature within 4°F (2°C).
D1474 Test Methods for Indentation Hardness of Organic
4.2 A Rack or Stand to support the test panels vertically in
Coatings
the oven while maintaining a distance of at least 1 in. (25 mm)
D4417 Test Methods for Field Measurement of Surface
between the panels and between the panels and oven walls.
Profile of Blast Cleaned Steel
5. Test Specimens
This test method is under the jurisdiction of ASTM Committee D33 on
5.1 Substrate:
ProtectiveCoatingandLiningWorkforPowerGenerationFacilitiesandisthedirect
5.1.1 Test panels shall be new commercial quality carbon
responsibility of Subcommittee D33.09 on Protective Lining for FGD Systems.
Current edition approved Feb. 15, 2007. Published March 2007. Originally steel conforming to Specification A36/A36M. Panels shall be a
approved in 1994. Last previous edition approved in 1999 as D5499 - 94 (1999). 1
minimum of ⁄4 in. (6 mm) thick, and 8 in. (200 mm) square.
DOI: 10.1520/D5499-94R07.
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
Standards volume information, refer to the standard’s Document Summary page on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
the ASTM website. Pittsburgh, PA 15222-4656, http://www.sspc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D5499 − 94 (2007)
5.1.2 These test panels are large enough and rigid enough 6.3.3 Aftereachexposure,evaluatethepanelsinaccordance
for linings and coatings up to 0.25-in. (6-mm) thick. For with Section 7 and record the results.
thicker linings, the test panels shall be at least 32 times the 6.3.4 Placethepanelsbackintheovenforthenextexposure
lining thickness in each direction. until the test is complete.
5.1.3 One test panel shall be prepared for each test tempera- 6.3.5 After the test is complete, evaluate the panels in
ture, for each method (Test Method A or Test Method B), in accordance with Section 7 and record the results.
addition to a control panel, which shall be maintained at
6.4 Test Method B:
laboratory conditions without elevated temperature exposure.
6.4.1 Place the panels in the oven and evaluate as in 6.3 for
Test Method A with the following difference:
5.2 Preparation:
5.2.1 Prepare one side of each panel in accordance with 6.4.1.1 Remove the panels from the oven once daily such
that the exposure time in the oven for each daily cycle is 16 6
SSPC No. SP5 to the degree of cleanliness represented in
SSPC VIS 1–89. Clean, new, angular abrasive shall be used. ⁄2 h.
6.4.1.2 Condition the panels for4hina vertical position
The surface profile shall be as recommended by the lining
manufacturer. Determine and record the average profile depth with a minimum of 1 in. (2.5 cm) at a temperature of 73 6 4°F
(23 6 2°C).
in accordance with Test Method D4417, Test Method A using
6.4.1.3 Optionally, the panels may be left in the oven during
a visual surface profile comparator or Test Method B, using a
the weekend.
tape replica.
6.4.1.4 Evaluate the panel in accordance with Section 7 and
5.2.2 Apply the lining to the prepared surface of the test
record results.
panels in a manner as closely simulating field ap
...
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