BUTTERFIELDS'S BUFFERED PHOSPHATE DILUENT
BUTTERFIELDS'S BUFFERED PHOSPHATE DILUTION WATER
Speci ed by the American Public Health Association (APHA) for use in the preparation
of dilution of waters, dairy products and foods samples in microbiological
testing methods. In the APHA's compendia of methods (Standard methods for the
examination of water and wastewater and Standard methods for the examination
of dairy products) the addition of magnesium chloride is recommended. In the
AOAC's Bacteriological Analytical Manuel, Butter elds's Phosphate Buffered Dilution
Water is described without magnesium chloride