Usp Purified Water Vs Wfi

From usp 1231 water for pharmaceutical purposes.

Usp purified water vs wfi.

That is why an oos investigation must be undertaken if those action levels are exceeded. As previously discussed because of the volume of water actually tested 1ml for endotoxins vs. Specification as per usp. The procedure described below is designed for measuring the conductivity of purified water and water for injection.

Water for injection is water purified by distillation or reverse osmosis. Difference between purified water and water for injection. Purified water and sterile purified water may be obtained by any suitable process. Sterile water for injection see the usp monograph is water for.

Unlike other official articles the bulk water monographs purified water and water for injection also limit how the article can be produced because of the belief that the nature and robustness of the purification process is directly related to the resulting purity. Pharmaceutical technology is the independent source for information insight and analysis on bio pharmaceutical formulation development and manufacturing. Distilled water water for injection sterile distilled water sterile wfi. Action levels in usp 1231 100cfu ml for purified water and 10cfu 100ml for water for injection are generally considered to represent a level above which the water is unfit for use.

The united states pharmacopeia usp defines this as a highly purified water containing less than 10 cfu 100 ml of aerobic bacteria. Stage 1 of the procedure below may alternatively be performed with the appropriate modifications to step 1 using on line instrumentation that has been appropriately calibrated whose cell constants have been accurately determined and whose temperature compensation function has. The type of water for pharmaceutical use is determined by usp testing. Conductivity 1 3 µ s cm at 25 0 c 1 3 µ s cm at 25 0 c total organic carbon toc 500 ppm 500 ppm microbial recommended action limit 100cfu ml 10cfu 100ml endotoxin.

Regulatory agencies have required that packaged pw and wfi be tested by the producer using toc and conductivity prior to packaging. Control of the chemical purity of these waters is important and is the main purpose of the monographs in this compendium.