Meets Membrane Filter (MF) Technique Standard Method requirements with 2 mL ampoules* Maximizes efficiency with premixed and presterilized media. Choose between plastic or glass ampoules for your applications. Simplify pouring of the media with widemouth glass ampoules. All plastic ampoule media is economically packaged with 50 ampoules per box. Ampoule media for microbiological analysis is available in a variety of selective nutrient broths for use in municipal water, food and beverage, pharmaceutical, and microelectronics industries.