UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

NACE TM0384

Holiday Detection of Internal Tubular Coatings of Less Than 330 μm (13 mils) Dry-Film Thickness

active, Most Current
Buy Now
Organization: NACE
Publication Date: 12 February 2016
Status: active
Page Count: 8
scope:

General

This NACE standard provides a nondestructive test method for the detection of holidays in a nonconductive coating film that has been applied to the inner wall (bore) of oilfield tubular goods. The apparatus and the recommended procedure for performing the test are described, as are methods of reporting the test data.

This test method applies to coatings that have a specified maximum dry-film thickness of 330 μm (13 mils). It is valid for coatings that have not been in service or previously tested with a salt solution. When holiday testing is performed on coatings that have been in service or that have been previously tested for holidays with a salt solution, there is a possibility of misleading results arising from surface contamination or salt bridging. The coating surface shall be free of materials that give added electrical insulation or that may mechanically damage the coating during the test.

This test method is not intended to provide a means of predicting the service life or service performance of these coatings.

A "holiday" is defined as a discontinuity in a protective coating that exposes unprotected surface to the environment. For the purposes of this test method, it means an area in an applied nonconductive coating that exhibits electrical conductivity when exposed to a known impressed voltage.

The specified resistance for holiday detection is 80,000 Ω ± 10% when measured between the wet probe sponge and the metallic tubular good

Document History

NACE TM0384
February 12, 2016
Holiday Detection of Internal Tubular Coatings of Less Than 330 μm (13 mils) Dry-Film Thickness
General This NACE standard provides a nondestructive test method for the detection of holidays in a nonconductive coating film that has been applied to the inner wall (bore) of oilfield tubular...
January 1, 1994
Holiday Detection of Internal Tubular Coatings of Less Than 250 Micrometers (10 Mils) Dry Film Thickness
A description is not available for this item.
January 1, 1984
Holiday Detection of Internal Tubular Coatings of Less Than 250 Micrometers (10 mils) Dry-Film Thickness
General This NACE standard provides a nondestructive method for the detection of holidays in a nonconductive coating film that has been applied to the inner wall of oilfield tubular goods. The...

References

Advertisement