VLT or Vacuum Leak Test for Steam Sterilizer

This video is about VLT or Vacuum Leak Test for Steam Sterilizer
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VLT or Vacuum Leak Test for Steam Sterilizer
Chamber Leak Test: A test conducted to evaluate possible air infiltration to the chamber under vacuum. [Synonym: Vacuum Leak Test]
The air leakage test is used to demonstrate that the quantity of air leakage into the sterilizer chamber during the periods of vacuum does not exceed a level that will inhibit the penetration of steam into the sterilizer load and will not be a potential cause of re-contamination of the sterilizer load during drying.
Leak Rate: Leak rate is the quantity of air leakage over time into the sterilizer chamber obtained while performing a chamber leak test. The leak rate should not exceed a level that will inhibit the sterilization process during air removal or vacuum drying stages.
Acceptance Criteria:
Not be more than 0.013 bars for 10 minutes of hold period.
As per EN285 (2015)
The rate of pressure rise shall be within the specified limits and in any case shall be not greater than 0.13 kPa/min (1.3 mbar/min).
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[@senapathidileepkumar532]

Can u please tell me in vacuum leak test which pressure we need to consider either positive or negative and why?

[@PharmaGyan]

If your chambers pressure is more than atmospheric pressure then it is considered as positive pressure but if your chamber pressure is less than the atmospheric pressure then it is considered as negative pressure. Don't correlate it with - & +.

[@PankuThakur-nv2mk]

Sir dealy before hold vlt me kis bjha se aata rejoin tell me please

[@PharmaGyan]

Sorry I dont understand your query

[@jitendrasinghjitendrasingh2622]

V.l.t paas 0.013 bar nmt

[@PharmaGyan]

Yes