Steam is a water in the gas phase (liquid to vapor). Which is
formed when water boils.
Steam is a water vapor condenses.
2 types of Steam
1.
Process steam or plant steam
2.
Pure steam
(Clean steam)
1.
Process steam or plant steam:
- Plant steam is steam used for heating systems and not be in contact with sterile goods.
- This steam used for utility system, boiler……etc.
- Plant steam generate from the raw water.
- Les pure “plant steam “ may be used for steam sterilization of non-product contact nonporous loads.
·
Pure steam is also called Clean steam.
·
Free of chemical and biological contamination.
·
Pure steam generation from WFI (Water For Injection).
·
Pyrogen free
·
Pure steam specification meet all the parameters
of WFI (Water For Injection).
·
Free from all chemical and biological
impurities.
·
Pure steam used Pharma and Health care
industries.
·
Medical devices sterilization used the pure
steam (clean steam).
·
Standard guidelines for pure steam EN (European Norms)285, HTM (Health Technical Memorandum) 2010.
Physical properties required for pure Steam.
Non-condensate gases
(NH3(ammonia), CO2, N2, O2 and Halogenated Hydrocarbons.) |
Not More Than 3.5 percent (Max)
|
Dryness valve Porous Load
|
0.9 percent (MIN)
|
Metal load
|
0.95 Percent (MIN)
|
Super Heat value
|
25 0C (Max)
|
Bacterial Endotoxin
|
<0.25
Eu/ml
|
pH
|
5 - 7
|
Conductivity
|
1.1 μs/cm at 20 C
|
Moisture
|
<5 %
|
Germs (micro organisms)
|
10 cfu/100 ml
|
