The College of American Pathologists (CAP) accreditation is used in the USA and in laboratories in many other countries. The CAP recommendation is that, as a minimum, water in the laboratory should meet Clinical Laboratory Reagent Water (CLRW) as specified by CLSI (1).
CLSI (Clinical Laboratory Standards Institute)
Clinical Laboratory Reagent Water (CLRW)
|Resistivity @ 25°C (megohms-cm)||≥10|
|Conductivity @ 25°C (micromhos/cm)||0.1|
|Bacterial Growth (cfu/ml)||<10|
|Particulate Matter||0.22 µm Filter*|
*The specification is a process specification, and not measured by the end-user.