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ASTM D4082-02

(Test Method)

Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power Plants

Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power Plants

SIGNIFICANCE AND USE
Variations can occur in surface preparation, application, and curing of coating materials. They may affect the performance of a coating system exposed to radiation when considered in conjunction with applicable engineered safety requirements. This test method is designed to provide a uniform test to assess the suitability of coatings, used in nuclear power facilities, under continuous radiation exposure for the projected 40-year lifetime of the facilities, including radiation during a DBA. Specific plant radiation exposure may exceed or be less than the amount specified in 6.2 of this standard. The gamma dose used may exceed the actual anticipated plant gamma dose in order to account for expected beta exposure as well. Coatings in Level II areas (outside primary containment) are expected to be exposed to lower accumulated radiation doses.
SCOPE
1.1 This test method covers a standard procedure for evaluating the lifetime radiation tolerance of coatings to be used in nuclear power plants. This test method is applicable to Coating Service Levels I and II.

General Information

Status
Historical
Publication Date
09-Jan-2002
ICS
87.040 - Paints and varnishes
Technical Committee
D33 - Protective Coating and Lining Work for Power Generation Facilities
Drafting Committee
D33.02 - Service and Material Parameters
Current Stage
Ref Project

Relations

Replaces
ASTM D4082-95 - Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power Plants
Effective Date
10-Jan-2002
Replaced By
ASTM D4082-10 - Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Nuclear Power Plants
Effective Date
15-May-2010
Referred By
ASTM D5144-08(2021) - Standard Guide for Use of Protective Coating Standards in Nuclear Power Plants
Effective Date
10-Jan-2002
Referred By
ASTM D3911-16(2021) - Standard Test Method for Evaluating Coatings Used in Light-Water Nuclear Power Plants at Simulated Design Basis Accident (DBA) Conditions
Effective Date
10-Jan-2002
Referred By
ASTM D8157-19 - Standard Guide for Qualification Testing of Coatings Used in Coating Service Level I in Nuclear Power Plants
Effective Date
10-Jan-2002
Referred By
ASTM D8104-17(2023) - Standard Guide for Determining Coating Qualification Test Data Applicability
Effective Date
10-Jan-2002
Referred By
ASTM D7230-06(2021) - Standard Guide for Evaluating Polymeric Lining Systems for Water Immersion in Coating Service Level III Safety-Related Applications on Metal Substrates
Effective Date
10-Jan-2002

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ASTM D4082-02 - Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power PlantsASTM D4082-02 - Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power Plants
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ASTM D4082-02 - Standard Test Method for Effects of Gamma Radiation on Coatings for Use in Light-Water Nuclear Power Plants
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2 pages
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Standards Content (Sample)

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:D4082–02
Standard Test Method for
Effects of Gamma Radiation on Coatings for Use in Light-
1
Water Nuclear Power Plants
This standard is issued under the fixed designation D4082; 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 40-year lifetime of the facilities, including radiation during a
DBA. Specific plant radiation exposure may exceed or be less
1.1 This test method covers a standard procedure for evalu-
than the amount specified in 6.2 of this standard. The gamma
ating the lifetime radiation tolerance of coatings to be used in
dose used may exceed the actual anticipated plant gamma dose
nuclear power plants.This test method is applicable to Coating
in order to account for expected beta exposure as well.
Service Levels I and II.
Coatings in Level II areas (outside primary containment) are
2. Referenced Documents
expected to be exposed to lower accumulated radiation doses.
2
2.1 ASTM Standards:
4. Preparation of Test Samples
D659 Test Method of Evaluating Degree of Chalking of
3
4.1 Steel Panels—Panels shall be prepared in accordance
Exterior Paints
with Specification D5139.
D660 Test Method for Evaluating Degree of Checking of
4.2 Concrete Blocks—Blocks shall be prepared in accor-
Exterior Paints
dance with Specification D5139.
D661 Test Method for Evaluating Degree of Cracking of
Exterior Paints
5. Sampling
D714 Test Method for Evaluating Degree of Blistering of
5.1 Prepare and test specimens at least in duplicate, or as
Paints
otherwise specified by the owner.
D772 Test Method for Evaluating Degree of Flaking (Scal-
ing) of Exterior Paints
6. Procedures
D5139 Specification for Sample Preparation for Qualifica-
6.1 Irradiation Dose Rate:
tion Testing of Coatings to be Used in Nuclear Power
6.1.1 Makethegammaenergyfieldatthepositionofthetest
Plants
6
specimen 1 3 10 rads/h, or greater, unless otherwise specified
3. Significance and Use by the owner. It shall be uniform to within 10 % from one
position of the specimen to another.
3.1 Variations can occur in surface preparation, application,
6.1.2 Make provisions so that all areas receive the same
and curing of coating materials. They may affect the perfor-
average exposure and dose, if the specimen is irradiated by a
mance of a coating system exposed to radiation when consid-
nonuniform source.
ered in conjunction with applicable engineered safety require-
6.1.3 Determine the dose rate by a procedure acceptable to
ments. This test method is designed to provide a uniform test
the coating manufacturer or as otherwise specified by the
to assess the suitability of coatings, used in nuclear power
owner.
facilities,undercontinuousradiationexposurefortheprojected
6.2 Irradiation Accumulated Dose—Make the total accu-
9
mulated dose 1 3 10 rads, unless otherwise specified by the
1
This test method is under the jurisdiction of ASTM Committee D33 on
owner.
ProtectiveCoatingandLiningWorkforPowerGenerationFacilitiesandisthedirect
6.3 Radiation Source—Simulate conditions at a reactor site,
responsibility of Subcommittee D33.02 on Service and Material Parameters.
closest to the preferred type of gamma source, such as, but not
Current edition approved Jan. 10, 2002. Published March 2002. Originally
approved in 1983. Last previous edition approved in 1995 as D4082 – 95. DOI: limited to, a fuel assembly.
10.1520/D4082-02.
6.4 Test Environment:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.4.1 Specimens may be in air or in water during exposure
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
to the gamma source, depending on the intended service as
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
prescribed by the owner.
3
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D4082–02
6.4.2 Do not exceed a temperature of 140°F (60°C) for the 9.1.1 The procedures and conditions relating to the test
specimen during irradiation, or as otherwise acceptable to the specimen preparation,
coating manufacturer or as specified by the owner.
9.1.2 Thetypeofradiationsourceandthetestprocedureand
environment, and
7. Examination and Reporting
9.1.3 Both the initial dose rate and the total accumulated
7.1 Examine and evaluate specimens immediately after
dose.
irradiation for the following coating defects:
7.1.1 Chalking (Method D659)—Report extent.
10.
...

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4.1 The procedures provide a broad range of techniques and photographic references to evaluate chalking of exterior paints.
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1.1 These test methods cover the evaluation of the degree of chalking on white or tinted exterior paint films. These test methods describe the procedures recommended for transferring the chalk to a fabric or fingertip, which is then compared to photographic reference standards, or in the case of adhesive tapes, compared to a reflectance table or photographic reference standards, to determine the degree of chalking.  
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3.1 This practice is useful in the laboratory to simulate roll-coated films.
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