ASTM-G18 Standard Test Method for Joints, Fittings, and Patches in Coated Pipelines

ASTM-G18 - 2007 R13 EDITION - CURRENT
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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 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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 and health practices and determine the applicability of regulatory limitations prior to use.

1.5 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.

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-G18-07(2013)

Revision Level

2007 R13 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

July 1, 2013

Document Type

Test Method

Page Count

5 pages

Committee Number

D01.48