![0022:0152: U. S. Bureau of Mines Collection - C-826-BC Apparatus for Determination of Gases in Metals by Vacuum Fusion ["The mechanical properties of many metals are affected markedly by the presence of dissolved gases. One method of determining the quantity of gas dissolved in a metal is to melt the metal, contained in a graphite crucible, in a high vacuum. The metal is converted to a carbide and the dissolved gases are freed. The control cabinet for vacuum fusion apparatus now being installed is shown at the right."]](https://d8e7jbdw4fu0e.cloudfront.net/4452/75681010-c1f0-11ee-ab27-e56e0f1cdedf-wzIJHjb.lg-nt@2x.jpg)
U. S. Bureau of Mines Collection - C-826-BC Apparatus for Determination of Gases in Metals by Vacuum Fusion ["The mechanical properties of many metals are affected markedly by the presence of dissolved gases. One method of determining the quantity of gas dissolved in a metal is to melt the metal, contained in a graphite crucible, in a high vacuum. The metal is converted to a carbide and the dissolved gases are freed. The control cabinet for vacuum fusion apparatus now being installed is shown at the right."]