Hi Jack, I have never seen “dewar rocks“ before. It does not look like the internal absorbent which is whiteish. Any inside the dewar? Does it still stay cold? Looks like rocks from a gravel walkway. Steve
Sent from my iPhone On Dec 4, 2020, at 10:05 AM, Tanner, John J. <tanne...@missouri.edu> wrote: When we opened our CX100 shipping dewar returned from APS via FedEx this week, we observed what appears to be tiny rocks on the rim below the foam neck core: https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0 Has anyone seen this before? Is this perhaps the absorbent material from the inside of the dewar? Thanks, Jack John J. Tanner Professor of Biochemistry and Chemistry Associate Chair of Biochemistry Department of Biochemistry University of Missouri 117 Schweitzer Hall 503 S College Avenue Columbia, MO 65211 Phone: 573-884-1280 Email: tanne...@missouri.edu<mailto:tanne...@missouri.edu> https://cafnrfaculty.missouri.edu/tannerlab/ Lab: Schlundt Annex rooms 3,6,9, 203B, 203C Office: Schlundt Annex 203A ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
