"extraction"

Hach Paddle testers allow fast, easy screening of water samples, solid surfaces, and non viscous liquids where unsanitary conditions may exist. The paddle is a double-sided slide attached to the vial cap. Each side of the slide is used to perform a separate test. The slide has a molded-in grid for easy colony counting without opening the optically clear, leakproof vial. Paddle tester, total aerobic bacteria/yeast and mold (tryptone glucose extract agar/sabouraud dextrose agar).