ASTM E2109-01 provides standardized manual and automated image analysis methods to measure area percentage porosity in thermal sprayed coatings, serving as a critical benchmark for evaluating coating density. The standard emphasizes precise metallographic preparation to accurately assess microstructural characteristics like pore distribution and size. Learn more about the standard at ASTM .
"Stain resistance was evaluated according to ASTM E2109-01. Three specimens of each floor covering were tested using the seven staining agents specified in Section 7 of the standard. Results were rated using the ASTM gray scale for staining, where 5 = no staining and 1 = severe staining." astm e2109-01 pdf
: Utilises computerized image analysis equipment to quantify porosity based on light reflectivity from polished cross-sections. astm e2109-01 pdf
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