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.
Safety Data Sheet for Multimedia Durapore® 1.2 µm/0.5 µm/0.22 µm Optiscale® 25mm NB SVSCA25NB6
Material Safety Data Sheet or SDS for Multimedia Durapore® 1.2 µm/0.5 µm/0.22 µm Optiscale® 25mm NB SVSCA25NB6 from Merck for download or viewing in the browser.