Nosema/Vairimorpha - why 30 bees?

[bpmurray]

The recommendation for sampling for Vairimorpha testing says to use 30 bees. I've never been able to work out why that number was selected. Is there a mathematical reason for that, some kind of statistical/probability expression?

 

[Erichalfbee]

I never do. Look up Randy Oliver’s Quick Squash method. Ten bees.