Coliform Presence/Absence (PA) Test – Principle, Procedure, Result, Uses
What is Coliform Presence/Absence Test? Coliform Presence/Absence (P-A) test is a rapid simple and inexpensive qualitative method which is used mainly for monitoring treated drinking water and distribution system for fecal indicator bacteria (coliforms). It is the modification of traditional multiple-tube fermentation technique where a single large water sample volume is inoculated in one culture … Read more