You can purchase or access the latest version through the following authorized providers: E2109 Standard Test Methods for Determining Area ... - ASTM
The standard has been withdrawn. It was withdrawn in 2014 and replaced by ASTM E2109-14 (and subsequently updated again). However, the 2001 version (E2109-01) is still frequently referenced in older specifications, legacy contracts, and academic research. astm e2109-01 pdf
The user must set a "gray-level threshold" to distinguish between the coating matrix (usually lighter) and the pores (usually darker). You can purchase or access the latest version
ASTM standards are copyrighted documents. You can obtain the official or its latest reapproved version through authorized distributors: E2109 Standard Test Methods for Determining Area ... - ASTM However, the 2001 version (E2109-01) is still frequently
The standard outlines two main methods for evaluation, both requiring the use of a reflected light metallurgical microscope:
ASTM E2109-01 is a standard test method specifically designed for
The standard also specifies precise neutralizer validation steps to ensure that residual antimicrobial activity does not falsely reduce colony counts.