Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
Merck now also offers reliable, user-friendly Reflectoquant® tests strips for monitoring the medium concentration range of 20-100mg/l peracetic acid.
Discover the first COD cell test with unlimited chloride tolerance, most sensitive tests for cooling or boiler water and the easiest drinking water tests.