BOD bottles
21 April, 2005The EPA has approved the Environmental Express' biochemical oxygen demand (BOD) bottles. BOD refers to the amount of oxygen that would be consumed if bacteria oxidised all organic materials in 1 L of water.
Vented sterile flasks
15 June, 2004Vented closures are now available for all Nalgene sterile disposable flasks. The vented closures, made of HDPE, feature a 0.2 µm hydrophobic PTFE membrane that provides sterile gas exchange for shaker and suspension cell culture.