Dear all, Due to the presence of residual liquid nitrogen in dry shippers 'steaming' out of a tipped-over dewar on a Fedex dock, we (PX-ers in the ALS) have been placed under some scrutiny with regards to dry-shipping dewars. In particular, I am interested in how people empty their dewars/pucks/vials and prepare them for dry-shipment and how they and/or their shipping department checks if the dewars are empty indeed. Cheers Peter Zwart -- ----------------------------------------------------------------- P.H. Zwart Beamline Scientist Berkeley Center for Structural Biology Lawrence Berkeley National Laboratories 1 Cyclotron Road, Berkeley, CA-94703, USA Cell: 510 289 9246 BCSB: http://bcsb.als.lbl.gov PHENIX: http://www.phenix-online.org CCTBX: http://cctbx.sf.net -----------------------------------------------------------------