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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
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.48 - Durability of Pipeline Coating and Linings
Current Stage
Ref Project

Relations

Replaces
ASTM G10-10(2015) - Standard Test Method for Specific Bendability of Pipeline Coatings
Effective Date
01-Oct-2019
Refers
ASTM G6-07(2020) - Standard Test Method for Abrasion Resistance of Pipeline Coatings
Effective Date
01-Aug-2020
Refers
ASTM G12-07(2013) - Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel (Withdrawn 2013)
Effective Date
01-Jun-2013
Refers
ASTM G12-07 - Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
Effective Date
01-Jul-2007
Refers
ASTM G6-07 - Standard Test Method for Abrasion Resistance of Pipeline Coatings
Effective Date
01-Jul-2007
Refers
ASTM G6-88(1998) - Standard Test Method for Abrasion Resistance of Pipeline Coatings (Withdrawn 2007)
Effective Date
10-Jul-1998
Refers
ASTM G12-83(1998) - Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
Effective Date
10-Jul-1998
Referred By
ASTM G11-19 - Standard Practice for Effects of Outdoor Weathering on Pipeline Coatings
Effective Date
01-Oct-2019

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ASTM G10-10(2019) - Standard Test Method for Specific Bendability of Pipeline CoatingsASTM G10-10(2019) - Standard Test Method for Specific Bendability of Pipeline Coatings
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ASTM G10-10(2019) - Standard Test Method for Specific Bendability of Pipeline Coatings
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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: 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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5.1 Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. In its use over many years, this test method for impact resistance has been found to be useful in predicting the performance of organic coatings for their ability to resist cracking caused by impacts.
SCOPE
1.1 This test method covers a procedure for rapidly deforming by impact a coating film and its substrate and for evaluating the effect of such deformation.  
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1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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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