How to Store Bacteriostatic Water Safely Confused about whether BAC water needs refrigeration after opening? According to USP standards and Pfizer's own guidance, both room temp (2025C) and refrigeration are acceptable Pure. Sterile. Reliable. In any laboratory setting, the quality of your materials defines the accuracy of your results. That's why choosing high purity sterile water is essential for consistent and precise research Uses of Bacteriostatic Water for Injections and Where to Get It Bacteriostatic Water Suppliers: Sterile Water, Syringes & More Bacteriostaticwater.com