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[@hardydx](/creator/youtube/hardydx)
"How to do a Kirby-Bauer Disk Diffusion Antimicrobial Susceptibility Test"  
[YouTube Link](https://youtube.com/watch?v=4eLcjk3Iv9Y) [@hardydx](/creator/youtube/hardydx) 2024-01-03T19:41Z 23.4K followers, 47.2K engagements


"UltraSnap Surface ATP Test for Environmental Monitoring"  
[YouTube Link](https://youtube.com/watch?v=JIih9iK4Xk0) [@hardydx](/creator/youtube/hardydx) 2021-04-07T19:16Z 23.4K followers, 9892 engagements


"Sartorius Sterisart Operations for sterility testing of liquids by filtration"  
[YouTube Link](https://youtube.com/watch?v=RlwerGi4SEU) [@hardydx](/creator/youtube/hardydx) 2013-11-05T20:36Z 23.4K followers, 27.3K engagements


"Four Quadrant Streak procedure - How to properly streak a Petri plate for isolated colonies"  
[YouTube Link](https://youtube.com/watch?v=FutAgWDymAM) [@hardydx](/creator/youtube/hardydx) 2022-01-20T18:11Z 23.4K followers, 686K engagements


"How to prepare the perfect Gram stain - Gram staining procedure"  
[YouTube Link](https://youtube.com/watch?v=McINCWMbseI) [@hardydx](/creator/youtube/hardydx) 2021-06-18T23:22Z 23.4K followers, 346.9K engagements


"How to Prepare a batch of Petri Plates from Dehydrated Culture Media"  
[YouTube Link](https://youtube.com/watch?v=oe7AY0QTcD4) [@hardydx](/creator/youtube/hardydx) 2022-08-15T18:12Z 23.4K followers, 187.1K engagements


"Streaking an Agar Plate - Four Quadrant Streak Method Explained #microbiology #laboratory"  
[YouTube Link](https://youtube.com/watch?v=pUDPG17TOSE) [@hardydx](/creator/youtube/hardydx) 2024-12-12T12:01Z 23.4K followers, 20.4K engagements


"How to Prepare the Perfect Gram Stain #Microbiology #HardyDiagnostics #Gramstaining"  
[YouTube Link](https://youtube.com/watch?v=rMGWTE9bww4) [@hardydx](/creator/youtube/hardydx) 2023-12-19T22:02Z 23.4K followers, 38.8K engagements