Question | Answer |
What are the formats of RO membrane | Spiral wounds and hollow fiber |
What are three types of pre-treatment process | Activated carbon,cartridge filter,UV |
Properties of activated carbon | Process carbon which are highly porous with large surface area avaliable for absoprtion and chemical reactions.Use to remove chlorine in process |
The weight of activated carbon with surface area | 1 grams that has surface area of more than 500m2 |
What is the germnidical efficiency for UV | 254nm |
UV dosage measurement | miliwatt seconds per cm2 with each microorganism assigned a kill dose |
What is the preferred method forn WFI | Distillation |
How distillation purified water | Phase change and entrainment separation |
How much endotoxin concentration is reduced after distillation | minimum 3 log reduction |
What are the two designs of distillation | vapor compression and mutiple effect distillation |
What is pure steam produced from? | Distillation |
What are the applications of pure steam | Sterilization of load items in autoclave
Sterilization of reactor vessels(bioreactor)
Bulk sterilization of product solution
Humidification of cleanroom |
What is the boiling point of liquefied gas | -90degC |
When does liquefied gas become liquid? | At ambient temperature and at pressure of 25Psig to 1500psig |
What is the boiling point of liquefied gas? | Very near to atmospheric pressure around -90 deg C to 20 degC |