N.B.: 8301-UHV units were RGA tested for eLIGO, after removing the LVP Krytox lubricant. They were in the optical contamination test queue in 3/2007, but were never tested! One (or two?) units were installed in eLIGO but seized up, presumably because of the lack of LVP Krytox lubricant. Since this time, Krytox has been tested and approved for LIMITED use in LIGO. This test will be of eight (8) copies of model 8302-UHV (simply longer stroke versions of the 8301-UHV model), with Krytox.
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