Sanitizer Dilution Calculator - Indigo Instruments- making hand sanitizer how many instruments needed ,Dilute chlorine, hydrogen peroxide, quat, peracetic acid and iodine sanitizers accurately with this easy to use calculator. Works whether you need 10 or 10000ppm. PPM and % are decimal based so the calculator is designed for metric units. We list American equivalents so you can convert.Why you shouldn't make your own hand sanitizer at home - CNETI don't advise it, but if you're determined to make your own hand sanitizer (and can actually find the ingredients to do so), avoid any recipes that don't use at least 60% alcohol. Otherwise, just ...