What is WFI temperature?
What is WFI temperature?
WFI is condensed and is generally kept at 80 – 90 ºC to maintain its properties.
What is the conductivity of WFI?
Specification for Water for Injection (WFI) as per USP
| Sr.No. | Test | Acceptance criteria |
|---|---|---|
| 3 | Conductivity (at 25°C) | Less than 1.3 mS/cm |
| 4 | Bacterial Endotoxins | Less than 0.25EU/ml. |
| 5 | Microbial limit test | |
| a. | Total aerobic microbial count | Less than 10 cfu / 100ml. |
What is the difference between WFI and distilled water?
Sterile Water for Injection is packaged in single-dose containers not larger than 1 L.” So the way I see it, the difference between those two is that: 1/ Sterile WFI (or Distilled water) is packed in containers and used for dissolving or diluting substances or preparations for parenteral administration before use.
Is WFI corrosive?
For WFI and high purity, and process water systems or water based fluids, the oxygen content and pH of the water can result in corrosive attack and pitting. Exposure to high temperature, high purity, steam can result in a black surface. In electropolished systems the surface may appear glossy black.
What is the TOC limit for purified water?
500 µg
What is the total organic carbon (TOC) limit for Purified Water and Water for Injection? There is a “target limit response” of 500 µg of Carbon/L. The true limit is the response of the TOC measurement system to a 500 µg Carbon/L (prepared from sucrose) solution, Rs, corrected for the response to reagent water, Rw.
Can you drink WFI?
Is water for injection (WFI) water is drinkable? Yes you can drink WFI but it is a very huge waste of money to do so unless there is a specific need for it. Under normal conditions you would not drink it because of the expense to produce it. There is no health benefit for healthy people.
What is WFI used for?
WFI is used for the most critical pharmaceutical products and applications including mandatory use for injectable drugs, hemofiltration, irrigation, in the production of some active pharmaceutical ingredients, implantable medical devices and other varied applications.
What is the flow velocity of a WFI system?
Flow velocity at the return on the distribution loop will be greater than or equal to 3 feet per second during individual point-of-use testing. Individual points receive specified volume and flow of water. The system has adequate capacity. WFI is cooled to specified temperature by the cooling heat exchangers.
How does water for injection ( WFI ) system work?
5.2.4 Distribution of Water for Injection to all users points are provided in closed circulation loop. Normal minimum velocity of WFI in loop is 2.5 m/s and during peak load minimum velocity 1.2m/s shall be maintained. The water quality parameters such as Total Organic Carbon, Conductivity and temperature are monitored online.
How is steam produced in a WFI system?
The resulting steam is pure pyrogen free sterile steam. 5.1.7 Thus Produced Pure steam becomes the source stream for next effect, un-evaporated water becomes the feed water and this process is repeated in all the remaining Effects.
What should the conductivity of WFI water be?
WFI has stricter bacteria controls than purified water and hence the USP mandates these waters should have less than 500 ppb of total organic carbon, fewer than 0.25 EU/ml endotoxins, and a conductivity of less than 1.3 uS/cm @ 25 C.
https://www.youtube.com/watch?v=fO-HgKKqPyI