UPDATE (FEB 2015):Beginning lateFebruary 2015, the following changes will be made to our 100mL (P/NW50-100) and 500mL (P/N W50-500) LALReagent Water:Container/Closure - The 100mL (P/N W50-100) and 500mL (P/N W50-500) containers will be changed from a glass bottle with a plastic cap to a plastic bottle with a plastic cap. The container/closure is consistent with the packaging used for the 1 liter LAL Reagent Water product (P/N W50-1000).The type of plastic used for the bottles is PETG - a type 1 recyclable plastic. The type of plastic used for the cap is HDPE - a type 2 recyclable plastic. A stability study, on file at the Lonza Walkersville site, was conducted prior to the change to ensure no adverse effect would result from the container/closure change. Positive Product Control (PPC) – Harmonization of the PPC specification across Lonza LAL Reagent Water products will occur. Benefits:Certified to contain less than 0.005 EU/ml endotoxinContent:1 bottle