Water Operator Licensing Overview. To become licensed as a public water system operator, an applicant must: complete the required course training, meet the required education, meet the required experience, complete the TCEQ application and pay the fee ($111), and pass the applicable exam (minimum score of 70 percent).
an apparatus that rotates at high speed and by centrifugal force separates substances of different densities, as milk and cream. verb (used with object), centrifuged, centrifuging. 2. Also, centrifugalize. to subject to the action of a centrifuge. Origin of centrifuge.
Analytical and preparative ultracentrifuges differ in the way they are used in the lab. Analytical centrifugation can yield important information about molecules in your sample, such as their overall shape, conformational changes, and even the number and stoichiometry of subunits that comprise protein complexes.