Setting ATP Pass & Fail Limits for Food & Beverage Industries
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- เผยแพร่เมื่อ 21 ก.ย. 2024
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This video will guide you through setting up and understanding Pass & Fail RLU limits on Hygiena EnSURE and SystemSURE Plus luminometers for Food & Beverage applications. For more information about establishing and setting limits on your meter, visit www.hygiena.com . There, you can download resources to guide you through set up. Or, feel free to contact technical support for help setting up your program!
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Why do you multiply by 3 to calculate the upper level?
Could you explain me why do you multiply by 3??? I am thinking for this reason.
Wow, I see it's been a year and they still haven't responded to you. I work in the food safety industry, normally you would multiply by 3 to get the upper limit because in theory you are basing the range from 0 to your base line X, and you're trying to extend that range or extrapolate to get 3 standard deviations. So if your lower bound baseline is 15 RLUs, your upperbound would be 45. This is not very scientific or very accurate but it's a guideline. I work in ready to eat fruits and our levels are 0 - 30 is GREEN 30 to 60 is Yellow (caution, resanitize), 60 to 180 is Orange (reclean the line), greater than 190 RLUs means stop the line, do a deep cleaning with a 7-step COP/CIP, with acid.