• NACE TM0109-2009

NACE TM0109-2009

Aboveground Survey Techniques for the Evaluation of Underground Pipeline Coating Condition

National Association of Corrosion Engineers, 03/21/2009

Publisher: NACE

File Format: PDF

$89.00$179.00


Published:21/03/2009

Pages:36

File Size:1 file , 300 KB

Note:This product is unavailable in Ukraine, Russia, Belarus



1.1 Aboveground Survey Techniques

1.1.1 This standard presents acknowledged procedures for the application of aboveground techniques to evaluate the coating condition of underground metallic pipelines.

1.1.2 This standard does not designate practices for specific situations; the complexity of some underground pipeline and environmental conditions preclude standardizing the application of some of the coating evaluation techniques. Deviation from this standard may be warranted in specific situations, provided those responsible can demonstrate that the objectives expressed in this standard have been achieved. 1.1.3 This standard does not include procedures for close-interval pipe-to-soil potential surveys (CIS). CIS procedures are covered in NACE SP0207.3

1.1.4 Alternating current (AC) attenuation surveys are used to provide an assessment of the overall quality of the pipe coating section by section; however, this technique is not typically effective in identifying individual holidays.

1.1.5 Direct current (DC) and AC-voltage gradient surveys are used to evaluate in detail the coating condition on buried pipelines and identify and classify coating holidays.

1.1.6 The Pearson survey, named after J.M. Pearson (the individual who developed the technique), is used to locate coating holidays.

1.1.7 The pipeline operator must determine which survey techniques are suitable for providing required coating condition assessment information for each pipeline or pipeline section.

More NACE standard pdf

NACE TM0204-2004

NACE TM0204-2004

Exterior Protective Coatings for Seawater Immersion Service

$89.00 $179.00

NACE RP0204-2004

NACE RP0204-2004

Stress Corrosion Cracking (SCC) Direct Assessment Methodology

$89.00 $179.00

NACE RP0281-2004

NACE RP0281-2004

Standard Recommended Practice - Method for Conducting Coating (Paint) Panel Evaluation Testing in Atmospheric Exposures

$89.00 $179.00

NACE RP0100-2004

NACE RP0100-2004

Cathodic Protection of Prestressed Concrete Cylinder Pipelines

$89.00 $179.00