Sterile For environmental surfaces to collect and ship microbial samples. All the advantages at a glance: 3" x 1.5" (7.5 x 3.5 cm) biocide-free cellulose sponge Available dry or pre-moistened with 10 ml buffer In Twirl-Tie™ bag or vial Bags can be opened easily with attached pull tabs Label area for sample identification Irradiated for proven sterility Directions for use The Romer Labs Sponge is a 3″ x 1.5″ (7.5 cm x 3.5 cm) cellulose sponge pre-moistened with 10 ml buffer of choice and individually packaged in a vapor-barrier foil pouch. Application BPW (Buffered Peptone Water): This is a non-selective pre-enrichment medium that enhances the revival of damaged cells. LB (Letheen Bouillon): A nutrient-rich medium containing lecithin and Tween 80 as neutralisers. This medium can be used to test the effectiveness of hygiene treatment. DE (Dey-Engley Neutralising Medium): Neutralises bactericidal and bacteriostatic effects of disinfectants. It contains additional nutrients that promote the recovery and growth of microorganisms. NB (Neutralisation Buffer): Buffer that neutralises the effects of chlorine and quaternary ammonium compounds. Can be used on disinfected surfaces. Sponges SurfACE™ DE ISO 18593