That looks like gravel from the driveway where the dewar was tossed around Jürgen
> On Dec 4, 2020, at 11:04 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 > <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 > <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/
