But the exact amount below 10 mtorr varies among manufacturers and determines the performance of the dewar.
The acceleration of LN2 and samples by movement of the dewar creates torque on the fragile neck, which eventually allows the passage of atmospheric gases or LN2 (if the dewar is overfilled) into the space between the inner and outer vessel.
He said: "Donald Dewar
would have been the last person to acknowledge the true scale of his achievements.
The first thing you do is to go into the auditorium where you are shown a short film about John Dewar
, the Perthshire man who started it all in the 1830s.
Paraig MacNeil, of Dunblane, Perthshire, wrote the 36-line Lament to Donald Dewar
- Hero of the People, in Gaelic.
Chair of the South Lanarkshire Council Planning Committee, Councillor Graham Scott, welcomed Bacardi and John Dewar
& Sons as a huge boost to the area and to South Lanarkshire as a whole.
For more than 155 years, the contributions of John and Tommy Dewar
to the production of Scotch Whisky and the art of promotion and marketing, have been an example of the entrepreneurial spirit that has positioned DEWAR
'S(R) 12 and DEWAR
'S WHITE LABEL(R) as two of the finest and most desirable aged whiskies available.