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ASTM E745-80(2003)

(Practice)

Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems

Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems

SCOPE
1.1 These practices cover test procedures simulating field service for evaluating the performance under corrosive conditions of metallic containment materials in solar heating and cooling systems. All test results relate to the performance of the metallic containment material only as a part of a metal/fluid pair. Performance in these test procedures, taken by itself, does not necessarily constitute an adequate basis for acceptance or rejection of a particular metal/fluid pair in solar heating and cooling systems, either in general or in a particular design.
1.2 These practices describe test procedures used to evaluate the resistance to deterioration of metallic containment materials in the several conditions that may occur in operation of solar heating and cooling systems. These conditions include: (1) operating full flow; (2) stagnant empty vented; ( 3) stagnant, closed to atmosphere, non-draindown; and ( 4) stagnant, closed to atmosphere, draindown.
1.3 The recommended practices cover the following three tests:
1.3.1 Practice ALaboratory Exposure Test for Coupon Specimens.
1.3.2 Practice BLaboratory Exposure Test of Components or Subcomponents.
1.3.3 Practice CField Exposure Test of Components or Subcomponents.
1.4 Practice A provides a laboratory simulation of various operating conditions of solar heating and cooling systems. It utilizes coupon test specimens and does not provide for heating of the fluid by the containment material. Practice B provides a laboratory simulation of various operating conditions of a solar heating and cooling system utilizing a component or a simulated subcomponent construction, and does provide for heating of the fluid by the containment material. Practice C provides a field simulation of various operating conditions of solar heating and cooling systems utilizing a component or a simulated subcomponent construction. It utilizes controlled schedules of operation in a field test.
1.5 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 a specific safety precaution statement see Section 6.

General Information

Status
Historical
Publication Date
29-May-1980
ICS
77.060 - Corrosion of metals
Technical Committee
E44 - Solar, Geothermal and Other Alternative Energy Sources
Current Stage
Ref Project

Relations

Replaces
ASTM E745-80(1996) - Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems
Effective Date
30-May-1980
Replaced By
ASTM E745-80(2009) - Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems (Withdrawn 2018)
Effective Date
01-Apr-2009

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ASTM E745-80(2003) - Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling SystemsASTM E745-80(2003) - Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems
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ASTM E745-80(2003) - Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E745–80(Reapproved2003)
Standard Practices for
Simulated Service Testing for Corrosion of Metallic
Containment Materials for Use With Heat-Transfer Fluids in
1
Solar Heating and Cooling Systems
This standard is issued under the fixed designation E 745; 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 subcomponent construction. It utilizes controlled schedules of
operation in a field test.
1.1 These practices cover test procedures simulating field
1.5 This standard does not purport to address all of the
service for evaluating the performance under corrosive condi-
safety concerns, if any, associated with its use. It is the
tions of metallic containment materials in solar heating and
responsibility of the user of this standard to establish appro-
coolingsystems.Alltestresultsrelatetotheperformanceofthe
priate safety and health practices and determine the applica-
metallic containment material only as a part of a metal/fluid
bilityofregulatorylimitationspriortouse.Foraspecificsafety
pair. Performance in these test procedures, taken by itself, does
precaution statement see Section 6.
not necessarily constitute an adequate basis for acceptance or
rejection of a particular metal/fluid pair in solar heating and
2. Referenced Documents
cooling systems, either in general or in a particular design.
2.1 ASTM Standards:
1.2 These practices describe test procedures used to evalu-
E 712 Practice for Laboratory Screening of Metallic Con-
ate the resistance to deterioration of metallic containment
tainment Materials for Use With Liquids in Solar Heating
materials in the several conditions that may occur in operation
2
and Cooling Systems
ofsolarheatingandcoolingsystems.Theseconditionsinclude:
G 1 Practice for Preparing, Cleaning, and Evaluating Cor-
(1) operating full flow; (2) stagnant empty vented; ( 3)
3
rosion Test Specimens
stagnant, closed to atmosphere, non-draindown; and ( 4)
stagnant, closed to atmosphere, draindown.
3. Terminology
1.3 The recommended practices cover the following three
3.1 Definitions:
tests:
3.1.1 collector, n—a device designed to absorb incident
1.3.1 Practice A—Laboratory Exposure Test for Coupon
solar radiation and transfer the energy to a heat-transfer fluid.
Specimens.
A collector has an absorber surface, a containment membrane,
1.3.2 Practice B—Laboratory Exposure Test of Compo-
and may or may not have insulation and glazing.
nents or Subcomponents.
3.1.2 panel, n—the absorber surface and containment mem-
1.3.3 Practice C—Field Exposure Test of Components or
brane within the collector.
Subcomponents.
3.1.3 component, n—an individually distinguishable prod-
1.4 Practice A provides a laboratory simulation of various
uct that forms part of a more complex product, that is, a
operating conditions of solar heating and cooling systems. It
subsystem or system. The panel and collector are each com-
utilizescoupontestspecimensanddoesnotprovideforheating
ponents.
of the fluid by the containment material. Practice B provides a
3.1.4 simulated subcomponent, n—a specimen fabricated in
laboratory simulation of various operating conditions of a solar
such a manner as to embody the major characteristics of a
heating and cooling system utilizing a component or a simu-
component with regard to material selection, design, forming,
lated subcomponent construction, and does provide for heating
joining, and surface condition.
of the fluid by the containment material. Practice C provides a
fieldsimulationofvariousoperatingconditionsofsolarheating
4. Significance and Use
and cooling systems utilizing a component or a simulated
4.1 At this time none of these practices have been demon-
strated to correlate with field service.
4.2 Because these procedures do not restrict the selection of
1
These test methods are under the jurisdiction of ASTM Committee E44 on
either the containment material or the fluid for testing, it is
Solar, Geothermal, and Other Alternative Energy Sources and is the direct
responsibility of Subcommittee E44.05 on Solar Heating and Cooling Subsystems
and Systems.
2
Current edition approved May 30, 1980. Published August 1980. Origianlly Annual Book of ASTM Standards, Vol 12.02.
3
approved in 1980. Last previous edition approved in 1996 as E 745–80(1996). Annual Book of ASTM Standards, Vol 03.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E745–80 (2003)
essential that consideration be given to the appropriate pairing 7. Calculations and Interpretation
...

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5.1 This test method is designed to compare alloys and may be used as one method of screening materials prior to service. In general, this test method is more useful for stainless steels than the boiling magnesium chloride test of Practice G36. The boiling magnesium chloride test cracks materials with the nickel levels found in relatively resistant austenitic and duplex stainless steels, thus making comparisons and evaluations for many service environments difficult.  
5.2 This test method is intended to simulate cracking in water, especially cooling waters that contain chloride. It is not intended to simulate cracking that occurs at high temperatures (greater than 200 °C or 390 °F) with chloride or hydroxide.
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1.1 This test method covers a procedure for conducting stress-corrosion cracking tests in an acidified boiling sodium chloride solution. This test method is performed in 25 % (by mass) sodium chloride acidified to pH 1.5 with phosphoric acid. This test method is concerned primarily with the test solution and glassware, although a specific style of U-bend test specimen is suggested.  
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1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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