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Updating ASTM D7091 Standard Practice for Coating Thickness Measurement

Updating ASTM D7091 Standard Practice for Coating Thickness Measurement
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The five-year review of D7091, Standard Practice for Non-destructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals is due to be completed by the end of 2018. The main update to this standard practice is the addition of the concept of scanning probes. Scanning probes are configured to take reading continuously at a rate of more than two reading a second while the probe is in contact with the coating. 

Product Number: 51218-088-SG
Author: David Barnes, JF Fletcher
Publication Date: 2018
Industry: Coatings
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$20.00
$20.00

The five-year review of D7091, Standard Practice for Non-destructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals is due to be completed by the end of 2018. The main update to this standard practice is the addition of the concept of scanning probes. Scanning probes are configured to take reading continuously at a rate of more than two reading a second while the probe is in contact with the coating. This greatly improves the speed at which large areas of coated metal can be measured and makes it possible to collect larger numbers of thickness data points in a given time. This paper will discuss the use of scanning probes and describe the proposed update to the D7091 Standard Practice. The collection of data according to SSPC PA2 and using scanning probes will be described and the data collection and transfer will be demonstrated.

The five-year review of D7091, Standard Practice for Non-destructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals is due to be completed by the end of 2018. The main update to this standard practice is the addition of the concept of scanning probes. Scanning probes are configured to take reading continuously at a rate of more than two reading a second while the probe is in contact with the coating. This greatly improves the speed at which large areas of coated metal can be measured and makes it possible to collect larger numbers of thickness data points in a given time. This paper will discuss the use of scanning probes and describe the proposed update to the D7091 Standard Practice. The collection of data according to SSPC PA2 and using scanning probes will be described and the data collection and transfer will be demonstrated.

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