ASTM G10-10(2019)
(Test Method)Standard Test Method for Specific Bendability of Pipeline Coatings
Standard Test Method for Specific Bendability of Pipeline Coatings
SIGNIFICANCE AND USE
4.1 This test will provide information on the ability of coatings applied to pipe to resist cracking, disbonding, or other mechanical damage as a result of bending. Because the test is applied to coated pipe from commercial production, the results can be directly used in the selection of similar materials for service. The test also has application as a quality control method when variations in coating application or material formulation will affect bending performance.
SCOPE
1.1 This test method covers the specific determination of the effect of short-radius bends on coatings applied to 33.4-mm (1-in. nominal) diameter pipe.
1.2 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.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
General Information
- Status
- Published
- Publication Date
- 30-Sep-2019
- Technical Committee
- D01 - Paint and Related Coatings, Materials, and Applications
- Drafting Committee
- D01.48 - Durability of Pipeline Coating and Linings
Relations
- Effective Date
- 01-Oct-2019
- Effective Date
- 01-Aug-2020
- Effective Date
- 01-Jun-2013
- Effective Date
- 01-Jul-2007
- Effective Date
- 01-Jul-2007
- Effective Date
- 10-Jul-1998
- Effective Date
- 10-Jul-1998
- Effective Date
- 01-Oct-2019
Overview
ASTM G10-10(2019), Standard Test Method for Specific Bendability of Pipeline Coatings, establishes a reliable method for evaluating the resistance of pipeline coatings to mechanical damage, such as cracking and disbondment, that may result from pipe bending during handling, installation, or service. This test is specifically designed for coatings applied to commercial 33.4-mm (1-in. nominal) diameter steel pipes. As an internationally recognized standard, ASTM G10-10(2019) enables accurate assessment of coating flexibility and serves as an important criterion for both material selection and quality control in the pipeline industry.
Key Topics
- Bendability Testing: Describes procedures for subjecting coated pipe specimens to controlled short-radius bends, using a variable-radius mandrel, to determine the ability of the coating to withstand deformation.
- Evaluation Criteria: Focuses on the inspection of coated pipes for signs of cracking, loss of adhesion, or other mechanical failures after bending.
- Test Conditions: Emphasizes conducting tests at room temperature and ensuring the test specimens are conditioned to thermal equilibrium before evaluation.
- Reporting Requirements: Calls for comprehensive documentation, including coating identification, thickness, temperature during testing, radius of first observed damage, and detailed description of failure types and locations.
- Quality Control: Outlines the test’s applicability as a quality assurance tool in manufacturing, to detect any variations in coating materials or application processes that may affect in-service bendability.
Applications
- Material Selection: By simulating field-relevant mechanical stresses, the standard enables pipeline operators, manufacturers, and engineers to compare the performance of different coating systems, ensuring pipeline durability and service life.
- Quality Assurance: Used as a quality control method for evaluating production-coated pipes, the standard helps identify inconsistencies in coating application, formulation, or workmanship that could lead to premature failure.
- Pipeline Construction: Critical in projects involving the transport, installation, or handling of coated pipes, where pipes may undergo significant bending and stresses, ensuring ongoing protection from corrosion and environmental exposure.
- Regulatory Compliance: Supports operators and manufacturers in meeting national and international requirements by providing traceable, standardized test data related to pipeline coating integrity.
- Research and Development: Assists in the development and qualification of new or improved coating formulations, contributing to advances in pipeline protection technologies.
Related Standards
ASTM G10-10(2019) references and complements several other standards relevant to pipeline coatings:
- ASTM G6: Test Method for Abrasion Resistance of Pipeline Coatings, used to assess another key aspect of coating durability.
- ASTM G12: Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel (Withdrawn 2013), formerly utilized for determining coating thickness.
- ISO/TC 67 Standards: International guidelines on pipeline transportation of petroleum and natural gas, which often reference ASTM standards for best practices.
- Other Protective Coatings Standards: Including those for cathodic protection, surface preparation, and environmental resistance.
ASTM G10-10(2019) is essential for professionals involved in the manufacturing, selection, and application of high-performance protective pipeline coatings, ensuring mechanical resilience and long-term asset protection in demanding service environments. This standard promotes a consistent, industry-recognized approach to evaluating the flexibility and integrity of pipeline coatings, supporting pipeline reliability and safety worldwide.
Frequently Asked Questions
ASTM G10-10(2019) is a standard published by ASTM International. Its full title is "Standard Test Method for Specific Bendability of Pipeline Coatings". This standard covers: SIGNIFICANCE AND USE 4.1 This test will provide information on the ability of coatings applied to pipe to resist cracking, disbonding, or other mechanical damage as a result of bending. Because the test is applied to coated pipe from commercial production, the results can be directly used in the selection of similar materials for service. The test also has application as a quality control method when variations in coating application or material formulation will affect bending performance. SCOPE 1.1 This test method covers the specific determination of the effect of short-radius bends on coatings applied to 33.4-mm (1-in. nominal) diameter pipe. 1.2 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. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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.
SIGNIFICANCE AND USE 4.1 This test will provide information on the ability of coatings applied to pipe to resist cracking, disbonding, or other mechanical damage as a result of bending. Because the test is applied to coated pipe from commercial production, the results can be directly used in the selection of similar materials for service. The test also has application as a quality control method when variations in coating application or material formulation will affect bending performance. SCOPE 1.1 This test method covers the specific determination of the effect of short-radius bends on coatings applied to 33.4-mm (1-in. nominal) diameter pipe. 1.2 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. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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.
ASTM G10-10(2019) is classified under the following ICS (International Classification for Standards) categories: 87.040 - Paints and varnishes. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM G10-10(2019) has the following relationships with other standards: It is inter standard links to ASTM G10-10(2015), ASTM G6-07(2020), ASTM G12-07(2013), ASTM G12-07, ASTM G6-07, ASTM G12-83(1998), ASTM G6-88(1998), ASTM G11-19. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM G10-10(2019) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: G10 −10 (Reapproved 2019)
Standard Test Method for
Specific Bendability of Pipeline Coatings
This standard is issued under the fixed designation G10; 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 form of cracking or loss of adhesion is detected through visual
and electrical inspection of the bent specimen.
1.1 Thistestmethodcoversthespecificdeterminationofthe
effect of short-radius bends on coatings applied to 33.4-mm
4. Significance and Use
(1-in. nominal) diameter pipe.
4.1 This test will provide information on the ability of
1.2 The values stated in SI units to three significant deci-
coatings applied to pipe to resist cracking, disbonding, or other
mals are to be regarded as the standard. The values given in
mechanical damage as a result of bending. Because the test is
parentheses are for information only.
applied to coated pipe from commercial production, the results
can be directly used in the selection of similar materials for
1.3 This standard does not purport to address all of the
service. The test also has application as a quality control
safety concerns, if any, associated with its use. It is the
method when variations in coating application or material
responsibility of the user of this standard to establish appro-
formulation will affect bending performance.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5. Apparatus
1.4 This international standard was developed in accor-
5.1 The bending apparatus shall be essentially as shown in
dance with internationally recognized principles on standard-
Figs. 1-3 and shall include the following:
ization established in the Decision on Principles for the
5.1.1 Variable-Radius Mandrel, constructed from four
Development of International Standards, Guides and Recom-
19-mm (0.75-in.) thick pieces of plywood, bolted together and
mendations issued by the World Trade Organization Technical
conforming to the geometric shape shown in Fig. 1. The
Barriers to Trade (TBT) Committee.
geometricconstructionisaccomplishedbylayingoutalongthe
outer edge of the mandrel a series of seven consecutive arcs at
2. Referenced Documents
decreasing radii of 610, 530, 460, 380, 300, and 230 mm (24,
2.1 ASTM Standards:
21, 18, 15, 12, and 9 in.). The first five arcs shall be carried
G6 Test Method for Abrasion Resistance of Pipeline Coat-
through a 45-deg angle to the next point of tangency.A45-deg
ings
V-notchshallbecutintotheedgeofthemandrelforseatingthe
G12 Test Method for Nondestructive Measurement of Film
pipespecimen.Holesshallbedrilledatappropriatelocationsin
Thickness of Pipeline Coatings on Steel (Withdrawn
the mandrel face for positioning the lever arm and fastening
2013)
pipe clamps.
5.1.2 Lever Arm-Roller Assembly—A 1.83-m (72-in.) lever
3. Summary of Method
arm with nylon roller supplies the mechanical advantage
3.1 The method consists of bending a 33.4-mm (1-in.
necessary to bend the pipe specimen. The lever arm shall
nominal) diameter specimen of coated pipe around a mandrel
contain a series of holes which are used to maintain proper
to produce a range of short-radius bends. Coating failure in the
clearance between the roller and pipe sample during the
bending operation.
5.2 Thickness Gage—Measurements of coating thickness
This test method is under the jurisdiction of ASTM Committee D01 on Paint
will be required for this test. This shall be done in accordance
and Related Coatings, Materials, andApplications and is the direct responsibility of
with Test Method G12.
Subcommittee D01.48 on Durability of Pipeline Coating and Linings.
Current edition approved Oct. 1, 2019. Published October 2019. Originally
5.3 Holiday Detector—A low-voltage d-c holiday detector
approved in 1969. Last previous edition approved in 2015 as G10 – 10(2015). DOI:
of the wet-sponge type, specified in Test Method G6, shall be
10.1520/G0010-10R19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
used to locate breaks in the coating film.
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 6. Test Specimens
the ASTM website.
6.1 The test specimen should be 2.5 m (100 in.) in length. It
The last approved version of this historical standard is referenced on
www.astm.org. should be representative of production-coated pipe and be free
Copyright © AS
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