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Daily Quiz (9)

True or false: The number of peaks in a steel surface profile after blast cleaning has an effect on coating performance.

True or false: The number of peaks in the surface profile of a steel substrate has no measurable effect on the performance of coatings applied over it.

What instrument or device is used to determine steel profile roughness/peak count requirements as required in SSPC-SP 17 and described in ASTM D4417?

Which of the following methods for measuring surface profile is not described in ASTM D4417, “Standard Test Method for Field Measurement of Surface Profile of Blast Cleaned Steel”?

What is another name for the portable stylus instrument used to measure surface roughness of blast-cleaned steel?

What quality control device has the names Keane and Tator connected to it?

What organization has developed a method for measuring and replicating concrete surface profile using replica putty?

What organization created and sells rubber replica templates for determining the surface profile of concrete?

What is the typical range for the peak-to-valley height of surface profile created on steel by power-tool cleaning to bare metal or abrasive-blast cleaning?


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