The MPN Calculator 3.1 determines the most probable number (MPN) based on the IDEXX Quanti-Tray®/2000 MPN Table for 100 ml samples. To use this tool, please enter the number of large cells on the Quanti-Tray that are positive in the first box. Then enter the number of small cells on the Quanti-tray that are positive in the second box. Then either click the "Find MPN" button or hit the enter key on your keyboard. The MPN will then be displayed in the box labeled ""MPN".
The MPN Calculator 3.1 is also available for download at: http://www.ubwc.org/index.php/mpn-calculator
The MPN Calculator 3.1 was created by Kris Lyon of the Partnership for the Umpqua Rivers. For comments, questions, or help please e-mail firstname.lastname@example.org. Or you can visit us at www.umpquarivers.org.