Background of SSPC PA 2; Overview and Purpose of SSPC-PA 2 (); Purpose of ASTM D ; Definitions; Gage Descriptions; Calibration & Verification. ASTM D focuses on gage use. • SSPC-PA 2 () focuses on acceptability of acquired measurements. • Both address ferrous and non-ferrous metal. This standard is issued under the fixed designation D ; the number immediately following the 1 This practice is under the jurisdiction of ASTM Committee D01 on Paint and . manufacturer’s specifications, n—a statement or set.
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I would like to purchase a book regarding painting standards on thickness of painting. The total number of spot and area measurements is based on the total square footage of pipe on the cart or rack. Coating thickness shall be measured in accordance with V7091 Level 1 is the most restrictive and does not allow for any deviation of spot or area measurements from the specified minimum and maximum thickness, while Atm 5 is the least restrictive.
February 5, at axtm Sectors Arbeidsliv Bygg, anlegg og eiendom Elektro Elektronisk komm. First, once the surface is coated for example, with a primeran uncoated surface may no longer be available for subsequent gage adjustments, so the user may want to have a similar uncoated surface prepared and reserved for future gage adjustments on a given project.
With our Web Subscription service you are provided instant, secure access to your standards of choice. The average of the gage readings is considered a spot measurement.
To guard against measuring with an inaccurate gage, SSPC-PA 2 requires that gage accuracy be verified at a minimum at the beginning and end of each work shift according to the procedures described in ASTM D Place a measured shim comes with the gage onto the prepared, uncoated metal surface to be coated; Adjust the gage reading to match the thickness of the shim.
Provisions for measuring on soft or tacky coatings are described in 5. Measured shims individually labeled with a stated thickness value commonly supplied with Type 2 gages can also be used for gage adjustment.
This practice is intended to supplement the manufacturers’ instructions for the manual operation of the gages and is not intended to replace them. Method for Measuring the Dry Film Thickness of Coatings on Edges For decades, the industry was cautioned about taking coating thickness measurements within one inch of an edge, let alone on an edge.
Spot measurements are obtained in each direction up to the maximum surface area coated during the work shift 112 two consecutive conforming spot measurements are acquired in that direction, or until no additional measurements can be made.
ASTM D their uses and how to apply them correctly. Contact us at salg standard. This article was a very helpful reference for me when I was updating adtm company coating spec. Please sign into an account with a subscription to this content, or email for help at support madcad.
Communicating the new requirements of this standard to the industry is challenging but essential.
For areas of coating exceeding 1, square feet, three random areas are selected from the first 1, square feet, along with one additional area for each additional 1, square feet. Register for a trial account. Adjustments to the gage may or may not be required.
Measuring Dry Film Coating Thickness According to SSPC-PA 2KTA University
However it will be important to place a measured shim onto the prepared, d701 pipe and adjust the gage to match the shim thickness to remove any effect of the base metal. Print 1 2 3 4 5 page sstarting from page current page. Then I calibrated by keeping the same on a metal surface, which resulted in a 0. All definitions related to gage calibration, accuracy and adjustment are incorporated by reference in ASTM D Verifying accuracy of Type 2 gage on a certified coated standard Fig.
Addressed measurement of coatings on steel only. If so which is the correct surface for calibrating?
Measuring Dry Film Coating Thickness According to SSPC-PA 2
The electronic file may not be reproduced in any way. SSPC-PA 2 states that a minimum of 10 arbitrarily spaced locations should be measured one reading per location and then averaged. Each spot consists of a 1.
A minimum thickness and a maximum thickness are normally specified for each layer of coating. This process is described later in this article. This procedure also verifies that the probe configuration will accommodate the d0791 configuration before acquiring coating thickness data. In such cases, the user will need to obtain BMRs from the prepared, uncoated substrate described earlier for Type 1 gages. This was a great read.
Pipe spools that are not loaded onto a rack or cart are typically measured individually Fig. Depending on the coating type and the prevailing service environment, the specifier can select the DFT restriction level for a given project. Here, company employees can at all times access the products the company subscribes to. If you need to be able to add standards to the monitoring service, you must register as a user with asym own username and password.