ASTM E2109 establishes the procedures for quantifying the porosity (voids) within a thermal sprayed coating. Thermal spray processes (like plasma spray, HVOF, or flame spray) naturally create coatings with some degree of porosity. Measuring this porosity is critical because it affects:
ASTM E2109-01, "Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings," outlines methods for assessing coating quality via direct comparison or automated image analysis. It provides protocols for quantifying porosity, which impacts corrosion resistance and structural integrity in thermal sprayed coatings. To purchase or view the full standard, visit ASTM International. astm e2109-01 pdf
. ASTM International often withdraws standards if they are not updated within a certain timeframe or if they are superseded by newer technology or more comprehensive methods (such as those involving 3D analysis or more advanced digital imaging standards). Where to Find the PDF ASTM E2109 establishes the procedures for quantifying the