The standard outlines two main methods for evaluation, both requiring the use of a reflected light metallurgical microscope:
: It provides the methods for measurement but does not define what levels of porosity are "acceptable"; those limits are typically set by specific project requirements or industry contracts. Key Test Methods Defined
E2109 Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings. ASTM International
: Technicians compare a cross-section of the coating under high magnification against a series of standard reference images that represent various porosity levels.
The standard outlines two main methods for evaluation, both requiring the use of a reflected light metallurgical microscope:
: It provides the methods for measurement but does not define what levels of porosity are "acceptable"; those limits are typically set by specific project requirements or industry contracts. Key Test Methods Defined astm e2109-01 pdf
E2109 Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings. ASTM International The standard outlines two main methods for evaluation,
: Technicians compare a cross-section of the coating under high magnification against a series of standard reference images that represent various porosity levels. astm e2109-01 pdf
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