ASTM G62-22

Standard Test Methods for Holiday Detection in Pipeline Coatings

SIGNIFICANCE AND USE
5.1 Method A—Method A describes a quick, safe method for determining if pinholes, voids, or metal particles are protruding through the coating. This method will not, however, find any thin spots in the coating. This method will determine the existence of any gross faults in thin-film pipeline coatings.  
5.2 Method B—Method B describes a method for determining if pinholes, voids, or metal particles are protruding through the coating, and thin spots in pipeline coatings. This method can be used to verify minimum coating thicknesses as well as voids in quality-control applications.
SCOPE
1.1 These test methods cover the apparatus and procedure for detecting holidays in pipeline type coatings.  
1.2 Method A is designed to detect holidays such as pinholes and voids in thin-film coatings from 0.025 to 0.254 mm (1 to 10 mils) in thickness using ordinary tap water and an applied voltage of less than 100 V d-c. It is effective on films up to 0.508 mm (20 mils) thickness if a wetting agent is used with the water. It should be noted, however, that this method will not detect thin spots in the coating. This may be considered to be a nondestructive test because of the relatively low voltage.  
1.3 Method B is designed to detect holidays such as pinholes and voids in pipeline coatings; but because of the higher applied voltages, it can also be used to detect thin spots in the coating. This method can be used on any thickness of pipeline coating and utilizes applied voltages between 900 and 20 000 V d-c.2 This method is considered destructive because the high voltages involved generally destroy the coating at thin spots.  
1.4 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.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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: Historical
• Publication Date: 14-Aug-2022
• ICS: 23.040.99 - Other pipeline components
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.48 - Durability of Pipeline Coating and Linings

Relations

• Replaced By: ASTM G62-23 - Standard Test Methods for Holiday Detection of Coatings used to Protect Pipelines
• Effective Date: 01-Oct-2023

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: G62 − 22
Standard Test Methods for
1
Holiday Detection in Pipeline Coatings
This standard is issued under the fixed designation G62; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 These test methods cover the apparatus and procedure
for detecting holidays in pipeline type coatings.
2. Referenced Documents
1.2 Method A is designed to detect holidays such as pin-
3
2.1 ASTM Standards:
holes and voids in thin-film coatings from 0.025 to 0.254 mm
A742/A742M Specification for Steel Sheet, Metallic Coated
(1 to 10 mils) in thickness using ordinary tap water and an
and Polymer Precoated for Corrugated Steel Pipe
applied voltage of less than 100 V d-c. It is effective on films
up to 0.508 mm (20 mils) thickness if a wetting agent is used
3. Terminology
with the water. It should be noted, however, that this method
3.1 Definitions:
willnotdetectthinspotsinthecoating.Thismaybeconsidered
3.1.1 holiday, n—smallfaultsorpinholesthatpermitcurrent
to be a nondestructive test because of the relatively low
drainagethroughprotectivecoatingsonsteelpipeorpolymeric
voltage.
precoated corrugated steel pipe.
1.3 Method B is designed to detect holidays such as
3.1.2 mil, n—0.001 in.
pinholes and voids in pipeline coatings; but because of the
3.2 Definitions of Terms Specific to This Standard:
higher applied voltages, it can also be used to detect thin spots
3.2.1 holiday detector, n—a highly sensitive electrical de-
in the coating. This method can be used on any thickness of
vice designed to locate holidays such as pinholes, voids, and
pipeline coating and utilizes applied voltages between 900 and
2
thin spots in the coating, not easily seen by the naked eye.
20 000 V d-c. This method is considered destructive because
These are used on the coatings of relatively high-electrical
the high voltages involved generally destroy the coating at thin
resistance when such coatings are applied to the surface of
spots.
materials of low-electrical resistance, such as steel pipe.
1.4 The values stated in SI units to three significant deci-
3.2.2 pipeline type coating, n—coatings of relatively high-
mals are to be regarded as the standard. The values given in
electrical resistance applied to surfaces of relatively low-
parentheses are for information only.
electrical resistance, such as steel pipe.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Methods
responsibility of the user of this standard to establish appro-
4.1 Both methods rely on electrical contact being made
priate safety, health, and environmental practices and deter-
through the pipeline coating because of a holiday or a
mine the applicability of regulatory limitations prior to use.
low-resistance path created by metal particles, or thin spots in
1.6 This international standard was developed in accor-
the coating. This electrical contact will activate an alarm
dance with internationally recognized principles on standard-
alerting the operator of the incidence of a holiday.
ization established in the Decision on Principles for the
4.2 In Method A, the applied voltage is 100 V d-c or less.
Development of International Standards, Guides and Recom-
4.3 InMethodB,theappliedvoltageis900to20000 V d-c.
5. Significance and Use
1
These test methods are under the jurisdiction of ASTM Committee D01 on
Paint and Related Coatings, Materials, and Applications and are the direct
5.1 MethodA—MethodAdescribesaquick,safemethodfor
responsibility of Subcommittee D01.48 on Durability of Pipeline Coating and
determiningifpinholes,voids,ormetalparticlesareprotruding
Linings.
Current edition approved Aug. 15, 2022. Published August 2022. Originally
approved in 1979. Last previous edition approved in 2014 as G62 – 14. DOI:
3
10.1520/G0062-22. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
2
This was taken from the pamphlet “Operating Instructions forTinker and Rasor contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Model EP Holiday Detector.” Other manufacturers’ holiday detectors can be Standards volume information, refer to the standard’s Document Summary page on
expected to have similar voltage specifications. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West C
...

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: G62 − 14 G62 − 22
Standard Test Methods for
1
Holiday Detection in Pipeline Coatings
This standard is issued under the fixed designation G62; 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 These test methods cover the apparatus and procedure for detecting holidays in pipeline type coatings.
1.2 Method A is designed to detect holidays such as pinholes and voids in thin-film coatings from 0.025 to 0.254 mm (1 to 10
mils) in thickness using ordinary tap water and an applied voltage of less than 100 V d-c. It is effective on films up to 0.508 mm
(20 mils) thickness if a wetting agent is used with the water. It should be noted, however, that this method will not detect thin spots
in the coating. This may be considered to be a nondestructive test because of the relatively low voltage.
1.3 Method B is designed to detect holidays such as pinholes and voids in pipeline coatings; but because of the higher applied
voltages, it can also be used to detect thin spots in the coating. This method can be used on any thickness of pipeline coating and
2
utilizes applied voltages between 900 and 20 000 20 000 V d-c. This method is considered destructive because the high voltages
involved generally destroy the coating at thin spots.
1.4 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.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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.
2. Referenced Documents
3
2.1 ASTM Standards:
A742/A742M Specification for Steel Sheet, Metallic Coated and Polymer Precoated for Corrugated Steel Pipe
3. Terminology
3.1 Definitions:
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.48 on Durability of Pipeline Coating and Linings.
Current edition approved July 1, 2014Aug. 15, 2022. Published July 2014August 2022. Originally approved in 1979. Last previous edition approved in 20132014 as
G62 – 07 (2013).G62 – 14. DOI: 10.1520/G0062-14.10.1520/G0062-22.
2
This was taken from the pamphlet “Operating Instructions for Tinker and Rasor Model EP Holiday Detector.” Other manufacturers’ holiday detectors can be expected
to have similar voltage specifications.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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

---------------------- Page: 1 ----------------------
G62 − 22
3.1.1 holiday, n—small faults or pinholes that permit current drainage through protective coatings on steel pipe or polymeric
precoated corrugated steel pipe.
3.1.2 mil, n—0.001 in.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 holiday detector, n—a highly sensitive electrical device designed to locate holidays such as pinholes, voids, and thin spots
in the coating, not easily seen by the naked eye. These are used on the coatings of relatively high-electrical resistance when such
coatings are applied to the surface of materials of low-electrical resistance, such as steel pipe.
3.2.2 pipeline type coating, n—coatings of relatively high-electrical resistance applied to surfaces of relatively low-electrical
resistance, such as steel pipe.
4. Summary of Test Methods
4.1 Both methods rely on electrical contact being made through the pipeline coating because of a holiday or a low-resistance path
created by metal particles, or thin spots in the coating. This ele
...

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: G62 − 22
Standard Test Methods for
1
Holiday Detection in Pipeline Coatings
This standard is issued under the fixed designation G62; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 These test methods cover the apparatus and procedure
for detecting holidays in pipeline type coatings.
2. Referenced Documents
1.2 Method A is designed to detect holidays such as pin- 3
2.1 ASTM Standards:
holes and voids in thin-film coatings from 0.025 to 0.254 mm
A742/A742M Specification for Steel Sheet, Metallic Coated
(1 to 10 mils) in thickness using ordinary tap water and an
and Polymer Precoated for Corrugated Steel Pipe
applied voltage of less than 100 V d-c. It is effective on films
up to 0.508 mm (20 mils) thickness if a wetting agent is used
3. Terminology
with the water. It should be noted, however, that this method
3.1 Definitions:
will not detect thin spots in the coating. This may be considered
3.1.1 holiday, n—small faults or pinholes that permit current
to be a nondestructive test because of the relatively low
drainage through protective coatings on steel pipe or polymeric
voltage.
precoated corrugated steel pipe.
1.3 Method B is designed to detect holidays such as
3.1.2 mil, n—0.001 in.
pinholes and voids in pipeline coatings; but because of the
3.2 Definitions of Terms Specific to This Standard:
higher applied voltages, it can also be used to detect thin spots
3.2.1 holiday detector, n—a highly sensitive electrical de-
in the coating. This method can be used on any thickness of
vice designed to locate holidays such as pinholes, voids, and
pipeline coating and utilizes applied voltages between 900 and
2
thin spots in the coating, not easily seen by the naked eye.
20 000 V d-c. This method is considered destructive because
These are used on the coatings of relatively high-electrical
the high voltages involved generally destroy the coating at thin
resistance when such coatings are applied to the surface of
spots.
materials of low-electrical resistance, such as steel pipe.
1.4 The values stated in SI units to three significant deci-
3.2.2 pipeline type coating, n—coatings of relatively high-
mals are to be regarded as the standard. The values given in
electrical resistance applied to surfaces of relatively low-
parentheses are for information only.
electrical resistance, such as steel pipe.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Methods
responsibility of the user of this standard to establish appro-
4.1 Both methods rely on electrical contact being made
priate safety, health, and environmental practices and deter-
through the pipeline coating because of a holiday or a
mine the applicability of regulatory limitations prior to use.
low-resistance path created by metal particles, or thin spots in
1.6 This international standard was developed in accor-
the coating. This electrical contact will activate an alarm
dance with internationally recognized principles on standard-
alerting the operator of the incidence of a holiday.
ization established in the Decision on Principles for the
4.2 In Method A, the applied voltage is 100 V d-c or less.
Development of International Standards, Guides and Recom-
4.3 In Method B, the applied voltage is 900 to 20 000 V d-c.
5. Significance and Use
1
These test methods are under the jurisdiction of ASTM Committee D01 on
Paint and Related Coatings, Materials, and Applications and are the direct
5.1 Method A—Method A describes a quick, safe method for
responsibility of Subcommittee D01.48 on Durability of Pipeline Coating and
determining if pinholes, voids, or metal particles are protruding
Linings.
Current edition approved Aug. 15, 2022. Published August 2022. Originally
approved in 1979. Last previous edition approved in 2014 as G62 – 14. DOI:
3
10.1520/G0062-22. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
2
This was taken from the pamphlet “Operating Instructions for Tinker and Rasor contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Model EP Holiday Detector.” Other manufacturers’ holiday detectors can be Standards volume information, refer to the standard’s Document Summary page on
expected to have similar voltage specifications. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 -------------
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