ASTM G11-19
(Practice)Standard Practice for Effects of Outdoor Weathering on Pipeline Coatings
Standard Practice for Effects of Outdoor Weathering on Pipeline Coatings
SIGNIFICANCE AND USE
4.1 Since coated pipe may be stored outdoors for long periods before burial, weathering tests described in this practice are needed to evaluate the stability of these coatings stored outdoors. The results obtained should be treated only as indicating the general effect of weathering. Exposure conditions vary greatly from year to year, from one part of a year to another, and from locality to locality. The results of short-term exposure tests in the north are more meaningful if exposure is started in the summer followed by a winter season. In southern areas where climatic conditions are more uniform throughout the year, the time of year when short-term exposure is started is less critical. In all localities, the longer the exposure period, the more reliable are the results obtained.
SCOPE
1.1 This practice is intended to define conditions for the exposure of coated metal pipe to weather.
1.2 This practice specifies qualifications for the samples, procedure to be followed in exposure to weather, and procedure for evaluating effects of exposure including visual examination and other tests.
1.3 The values stated in SI units to three significant decimals are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: G11 − 19
Standard Practice for
1
Effects of Outdoor Weathering on Pipeline Coatings
This standard is issued under the fixed designation G11; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* G14 TestMethodforImpactResistanceofPipelineCoatings
(Falling Weight Test)
1.1 This practice is intended to define conditions for the
G62 Test Methods for Holiday Detection in Pipeline Coat-
exposure of coated metal pipe to weather.
ings
1.2 This practice specifies qualifications for the samples,
procedure to be followed in exposure to weather, and proce- 3. Summary of Practice
dure for evaluating effects of exposure including visual exami-
3.1 The effects of outdoor weathering on pipeline coatings
nation and other tests.
after 6, 12, and 24 months’ exposure are determined visually
1.3 The values stated in SI units to three significant deci-
and electrically by comparing exposed samples of coated pipe
mals are to be regarded as the standard. The values given in with unexposed samples of coated pipe before and after impact
parentheses are for information only. and bending tests. At the beginning of the test the unexposed
samples are qualified by a cathodic disbonding test.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Since coated pipe may be stored outdoors for long
priate safety, health, and environmental practices and deter-
periods before burial, weathering tests described in this prac-
mine the applicability of regulatory limitations prior to use.
tice are needed to evaluate the stability of these coatings stored
1.5 This international standard was developed in accor-
outdoors. The results obtained should be treated only as
dance with internationally recognized principles on standard-
indicating the general effect of weathering. Exposure condi-
ization established in the Decision on Principles for the
tions vary greatly from year to year, from one part of a year to
Development of International Standards, Guides and Recom-
another, and from locality to locality. The results of short-term
mendations issued by the World Trade Organization Technical
exposure tests in the north are more meaningful if exposure is
Barriers to Trade (TBT) Committee.
started in the summer followed by a winter season. In southern
2. Referenced Documents
areas where climatic conditions are more uniform throughout
2
the year, the time of year when short-term exposure is started
2.1 ASTM Standards:
is less critical. In all localities, the longer the exposure period,
D7091 Practice for Nondestructive Measurement of Dry
the more reliable are the results obtained.
Film Thickness of Nonmagnetic Coatings Applied to
Ferrous Metals and Nonmagnetic, Nonconductive Coat-
5. Location of Test Sites
ings Applied to Non-Ferrous Metals
G7 Practice for Atmospheric Environmental Exposure Test- 5.1 Weathering racks shall be located in cleared areas
representative of local outdoor weather conditions.
ing of Nonmetallic Materials
G8 Test Methods for Cathodic Disbonding of Pipeline Coat-
6. Apparatus
ings
G10 Test Method for Specific Bendability of Pipeline Coat-
6.1 Racks—The horizontal racks shall be any suitable pipe
ings storage racks of sufficient height to prevent any undesirable
effects of vegetation growth during the period of exposure.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Racks may be constructed from a variety of materials, but pipe
Related Coatings, Materials, and Applications and is the direct responsibility of
specimens must rest on a nonconductive surface. An example
Subcommittee D01.48 on Durability of Pipeline Coating and Linings.
of a suitable rack is illustrated in Fig. 1.
Current edition approved April 15, 2019. Published May 2019. Originally
approved in 1969. Last previous edition approved in 2012 as G11 – 04 (2012). DOI:
7. Sampling
10.1520/G0011-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1 Each starting sample shall consist of coated 19.1 mm
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
( ⁄4 in. nominal) diameter steel pipe from a production lot
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. having a minimum length of 4.4 m (14.4 ft). The sample shall
*A Sum
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: G11 − 04 (Reapproved 2012) G11 − 19
Standard Test Method Practice for
1
Effects of Outdoor Weathering on Pipeline Coatings
This standard is issued under the fixed designation G11; 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
1.1 This test method is intended to define conditions for the exposure of coated pipe to weather.
1.2 This test method specifies qualifications for the samples, procedure to be followed in exposure to weather, and procedure
for evaluating effects of exposure including visual examination and other tests.
1.3 The values stated in SI units to three significant decimals are to be regarded as the standard. The values given in parentheses
are for information only.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
G8 Test Methods for Cathodic Disbonding of Pipeline Coatings
G10 Test Method for Specific Bendability of Pipeline Coatings
3
G12 Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel (Withdrawn 2013)
G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)
G62 Test Methods for Holiday Detection in Pipeline Coatings
3
G70 Test Method for Ring Bendability of Pipeline Coatings (Squeeze Test) (Withdrawn 2013)
3. Summary of Test Method
3.1 The effects of outdoor weathering on pipeline coatings after 6, 12, and 24 months’ exposure are determined visually and
by electrical means by comparing exposed samples of coated pipe with unexposed samples of coated pipe before and after impact
and bending tests. At the beginning of the test the starting samples are qualified by a cathodic disbonding test.
4. Significance and Use
4.1 Since coated pipe may be stored outdoors for long periods before burial, weathering tests of the type described in this test
method are needed to evaluate the stability of these coatings stored outdoors. The results obtained should be treated only as
indicating the general effect of weathering. Exposure conditions vary greatly from year to year, from one part of a year to another,
and from locality to locality. The results of short-term exposure tests in the north are more meaningful if exposure is started in the
summer followed by a winter season. In southern areas where climatic conditions are more uniform throughout the year, the time
of year when short-term exposure is started is less critical. In all localities, the longer the exposure period, the more reliable are
the results obtained.
5. Location of Test Sites
5.1 Weathering racks shall be located in cleared areas representative of local outdoor weather conditions.
1
This test method practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility
of Subcommittee D01.48 on Durability of Pipeline Coating and Linings.
Current edition approved Nov. 1, 2012April 15, 2019. Published November 2012May 2019. Originally approved in 1969. Last previous edition approved in 20042012
as G11 – 04.G11 – 04 (2012). DOI: 10.1520/G0011-04R12.10.1520/G0011-19.
2
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 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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G11 − 19
6. Apparatus
6.1 Racks—The horizontal racks shall be any suitable pipe storage racks of sufficient height to prevent any undesirable effects
of vegetation growth during the period of exposure. Racks may be constructed from a variety of materials, but pipe specimens must
rest on a nonconductive surface. An example of a suitable rack is illustrated in Fig. 1.
7. Sampling
3
7.1 Each starting sample shall consist of coated 26.7-mm ( ⁄4-in. nominal) diameter steel pipe from a production lot having a
minimum length of 4.4 m (14.4 ft). The samp
...
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