ASTM-G18 › Standard Test Method for Joints, Fittings, and Patches in Coated Pipelines
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Scope
1.1 This test method describes determination of the comparative corrosion preventative characteristics of materials used for applications to joints, couplings, irregular fittings, and patched areas in coated pipelines. The test method is applicable to materials whose principal function is to act as barriers between the pipe surface and surrounding soil environment.
1.2 The test method described employs measurements of leakage current, capacitance, and dissipation factor to indicate changes in the insulating effectiveness of joint and patching materials.
1.3 This standard does not purport to address all of the safety problems, 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.
1.4 The values stated in SI units to three significant decimals are to be regarded as the standard.
Keywords
capacitance; coating; current; dissipation factor; fittings; immersion; joint; leakage; patches; pipeline; resistance; ICS Number Code 23.040.01 (Pipeline components in general. Pipelines)
To find similar documents by ASTM Volume:
06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)
To find similar documents by classification:
23.040.01 (Pipeline components and pipelines in general)
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Document Number
ASTM-G0018-07R20
Revision Level
2007 R20 EDITION
Status
Current
Modification Type
Withdrawn
Publication Date
Aug. 12, 2020
Document Type
Test Method
Page Count
5 pages
Committee Number
D01.48