Water for Injections is usually stored in a continuously circulating system and maintained at an elevated temperature (80-85 degrees C) to prevent microbial growth from taking input from purified water. The WFI generation system produces 100% Pyrogen-free water. Distillation is simply the phase change from liquid to vapour, thus enabling the pre-treated feed water to be stripped of any residual ionic materials, particulates, colloids and non-volatile organic compounds. Distillation also removes bacterial endotoxins.
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