400 cm2
500 cm2
600 cm2
700 cm2
.
One
Two
Three
Four
7.6 Torr
76 Torr
760 Torr
7600 Torr
30 +/- 5%
40 +/- 5%
50 +/- 5%
60 +/- 5%
XH ? 1
XH ? 3
XH ? 5
XH ? 7