Well, I am upset, but not because you bought a tester and not because you were trying to hide it from me.
He walked into the kitchen, stepped on the trash can lid opener and dropped the tester in the trash.
In Saybolt's Electric Tester (1879) ignition is effected by a spark from an induction-coil passing between platinum points placed at a fixed distance above the oil.
In France, the standard is 35° C. (Granier tester, equivalent to 98° F.), and according to their flashpoint, liquid hydrocarbons are divided into two classes (below and above 35° C.), considered differently in regard to quantities storable and other regulations.
Ewing's hysteresis-tester, 2 which is specially intended for testing the sheet iron used in transformers.