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.
Millex devices are measured for endotoxin as per current USP. A specification of <2 EU/device is used for clinical applications and a specification of <20 EU/device is used for products used in research laboratories. Prior to the current revision of the USP, the specification for endotoxin was reported in EU/ml of wash. The current USP revised this specification to be more stringent with results reported as EU/device.
Are the Millex units autoclavable?
The only Millex unit sold by Millipore that is autoclavable is the FG50. All others have a maximum temperature rating of 45C. For short term exposure, slightly higher temperatures may be used.
Are the Millex units surfactant free?
Yes, all of the Millex filter units are surfactant free.