As an alternative to the oven test the SADT for larger packages can be determined by substituting a Dewar flask for the package.
12.
Long distance transportation of products is by shipping liquid product for large quantities or as dewar flasks or gas cylinders for small quantities.
13.
Cryogenic barcode labels are used to mark dewar flasks containing these liquids, and will not frost over down to-195 degrees Celsius.
14.
This is achieved by cooling the pump body to low temperatures, typically by immersing it in a Dewar flask filled with liquid nitrogen.
15.
As suggested for example by Carath�odory and used for example by Callen, the favoured instance of an adiabatic wall is that of a Dewar flask.
16.
These liquids may be stored in Dewar flasks, which are double-walled containers with a high vacuum between the walls to reduce heat transfer into the liquid.
17.
When pouring a cryogen, working with a wide-mouth Dewar flask or around the exhaust of cold boil-off gas, use of a full face shield is recommended.
18.
After the German glassblowers determined the commercial uses for the Dewar flask, the technology was sold to the Thermos company who used it to mass-produce vacuum flasks for at-home use.
19.
This is done by " superinsulation " ( no Wikipedia page yet the link only goes to an unrelated house-building meaning of the word and even our Dewar flask page is rather minimal ).
20.
The optics in the instrument package were placed near the top of the dewar flask which cooled them in order to prevent the instruments from seeing the walls of the container, thereby simplifying the processing of the observational data.
