por | Jul 20, 2026
These glass tubes are from a defunct high school chemistry laboratory. The box was labeled «combustion tubes». They do not have polished ends. Measurements are in approximately 15 mm ID and 18 mm OD. They are each 30 cm in length.k Thank you
por | Jul 17, 2026
This is a brand new Omega E.Z.N.A. Water DNA Kit with 50 preps. There is not an expiration date on the package or on any of the reagents but you can see the lot date if given as May 28, 2020. I have used kits from this same purchase successfully for a number of years...
