Standardization News

A new ASTM International standard describes a practice for the nondestructive evaluation of newly applied and previously installed coating/lining systems using an acoustical sounding technique. 
 
ASTM’s paint and related coatings, materials, and applications committee (D01) developed the new standard (D8555).
 
According to ASTM member Bill Corbett, the new standard describes a procedure for lightly tapping the coating/lining using a non-sound dampening tool to detect relative differences in reflective sound, which may be an early indication of detachment from the substrate.
 
“The new standard will enable a user to assess potential coating/lining detachment without the need for widespread destructive testing and subsequent repairs,” says Corbett, who chairs the ASTM subcommittees on industrial protective coatings (D01.46) and durability of pipeline coating and linings (D01.48). “With minimal training and proper tool selection, anyone assessing the condition of a coating or lining system can perform the test by following this practice, then demarcate areas that produce a hollow/dull/softer sound for further investigation using destructive means.”
 
Corbett notes that D8555 will be useful for facility owners, engineers, coating manufacturers, certified protective coating specialists, and certified coating inspectors.
 
All interested parties are invited to join the industrial protective coatings subcommittee that developed D8555. JOIN ASTM.
 
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