Hi sir, In your video you said, Lowest microbial size is 0.2 micron , our HEPA particle size 0.3 micron it will allow 0.2 Micron size it will contaminate in Grade A.Please explain...
HEPA filter retains particle by multiple principle, not only by sieving. It includes inertial impaction, interception, diffusion and also sieving. So that way it retains particles. Also the NVPC limit for Grade A is
To perform process-specific filter validation studies, the industry standard for testing bacterial retention in any sterilizing grade filter is to use B. diminuta ATCC 19146. This bacterium was selected due to the observation by Dr. Frances Bowman that it could repeatedly penetrate a 0.45 µm rated filter but was fully retained by a 0.2 µm filter. Consequently, it was accepted by the regulatory authorities as a suitable bacterium for testing the ability of a filter to provide a sterile product.
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Thanks
Please also share video to your friends, colleagues, groups and juniors
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Informative video in a short time
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Shandar... 💙
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Awesome 👍 sir grade A me entry exit ke bare me bhi video banao
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And sir pls all videos make in hindi that easy to understand
Thank you
Sir sbhi video Hindi mai bnao
Sir how differential pressure is maintained across the filter
Hi sir,
In your video you said, Lowest microbial size is 0.2 micron , our HEPA particle size 0.3 micron it will allow 0.2 Micron size it will contaminate in Grade A.Please explain...
HEPA filter retains particle by multiple principle, not only by sieving. It includes inertial impaction, interception, diffusion and also sieving. So that way it retains particles. Also the NVPC limit for Grade A is
ua-cam.com/video/ZbSkZsbPubM/v-deo.html
Watch my this video where I have explained how filter removes Bacteria
0.2or 0.3micron the size of bacteria??
To perform process-specific filter validation studies, the industry standard for testing bacterial retention in any sterilizing grade filter is to use B. diminuta ATCC 19146. This bacterium was selected due to the observation by Dr. Frances Bowman that it could repeatedly penetrate a 0.45 µm rated filter but was fully retained by a 0.2 µm filter. Consequently, it was accepted by the regulatory authorities as a suitable bacterium for testing the ability of a filter to provide a sterile product.
@@PHARMAVEN sir but the smallest bacteria bruvendimonas diminuta size is 0.3 micron . But u told in video it is 0.2 micron please clear this topic sir
'PromoSM'
3520 is the limit for 0.5micron ??
Yes, it is as per ISO Class 5
@@PHARMAVEN but sir you told 0.3micron limit 3500
Sir,in video typo error for velocity limit ,it is showing 0.36 to 0.45 instead of 0.36 to 0.54m/s
Thanks Dear. I spoken correct values, please consider those
Thanks for pointing out error, I will be careful next time