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ASTM International - ASTM G62-23

Standard Test Methods for Holiday Detection of Coatings used to Protect Pipelines

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Organization: ASTM International
Publication Date: 1 October 2023
Status: active
Page Count: 6
ICS Code (Other pipeline components): 23.040.99
significance And Use:

5.1 Method A-Low voltage holiday detection is used to locate holidays and pinholes in thin-film coatings (up to 0.508?mm (20?mils) using a sponge wetted with tap water (and a wetting agent for... View More

scope:

1.1 These test methods cover the apparatus and procedures for detecting pinholes and holidays in coatings used to protect pipelines.

1.2 Method A is designed to detect pinholes and holidays in thin-film coatings from 0.025?mm to 0.254 mm (1?mils 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.

1.3 Method B is designed to detect pinholes and holidays in thick-film coatings >0.508 mm (20 mils) This method can be used on any thickness of pipeline coating and utilizes applied voltages between 3.4 and 35 kV d-c.

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.

Document History

ASTM G62-23
October 1, 2023
Standard Test Methods for Holiday Detection of Coatings used to Protect Pipelines
5.1 Method A—Low voltage holiday detection is used to locate holidays and pinholes in thin-film coatings (up to 0.508?mm (20?mils) using a sponge wetted with tap water (and a wetting agent for...
August 15, 2022
Standard Test Methods for Holiday Detection in Pipeline Coatings
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...
July 1, 2014
Standard Test Methods for Holiday Detection in Pipeline Coatings
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...
June 1, 2013
Standard Test Methods for Holiday Detection in Pipeline Coatings
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...
July 1, 2007
Standard Test Methods for Holiday Detection in Pipeline Coatings
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...
July 10, 1998
Standard Test Methods for Holiday Detection in Pipeline Coatings
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...
September 25, 1987
Standard Test Methods for Holiday Detection in Pipeline Coatings (Withdrawn 2007)
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...
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