Multi-well filtration test apparatus

A filtration apparatus comprising

• a first plate having at least one first well, each of said first wells having a first open end, a second end and an outside peripheral surface,
• a second plate having at least one second well having a first open end, a second closed end, said closed end having a hole extending through the closed end thickness and an inside peripheral surface,
• said second plate being secured to said first plate between said outside peripheral surface of said first plate and said inside peripheral surface of said second plate,
• a filter, positioned between said second end of said first plate and said second end of said second plate, and
• an open spout having an open end, said spout being in fluid communication with said hole, said spout having an inner diameter between 0.1 and 3.0 mm and a smallest outer diameter between 0.1 and 5.0 mm., and a collar on the outer surface of said spout extending in a direction substantially perpendicular to the vertical axis of said spout, said spout outer surface and said collar in combination forming a larger outer surface of said spout of varying diameter which functions to prevent migration of liquid emanating from said spout along said larger outer surface, said collar having an outer diameter between 0.5 and 7 mm.