The measurement of phenol coefficients by flow microcalorimetry

Microcalorimetric bioassay procedures have been applied to the determination of phenol coefficients and dilution coefficients. The derived values are compared with those from a standard AOAC test procedure. This microcalorimetric results indicate close agreement with AOAC values, good reproducibility (+/- 2%), rapidity (30 min per test), potential for automation and the determination of in-use dilutions of disinfectants.