Contents page 5
14 Thermostatting the gas phase with the TJ20 (optional) ............................. 96
15 Measuring principles .................................................................................. 99
15.1 Surface and interfacial tension.........................................................................................99
15.1.1 The ring method according to Du Noüy...................................................................... 99
15.1.2 The plate method according to Wilhelmy ................................................................. 101
15.1.3 Ring and plate methods in comparison .................................................................... 102
15.2 Density measurement .................................................................................................... 103
Appendix........................................................................................................ 104
I Ranges of validity for the ring correction methods .................................... 104
II Settings for compatibility with the Tensiometer K10.................................. 105
III Error messages ......................................................................................... 106
IV Computer requirements for LabDesk ........................................................ 108
V Technical data ........................................................................................... 109
VI Warranty and caveat emptor ..................................................................... 109
VII Copyright and right to make alterations ................................................... 110
VIII Index ........................................................................................................ 111