[Localization on the integument and alcali resistance ]

The alkali resistance-test by method of Burckhardt-Locher was performed to investigate possible differences on respective integumental areas and to compare two methods of applying the alkali solution (dropper and piston pipette). 49 persons without dermatoses were tested by right-left comparing four test sites. The highest average alkali resistance was found at the back of the hand (+/- = 4, 72, s = 1,3), followed by the forearm (+/- = 2,69, s = 0,8) was registered at the shoulder. The differences between the test sites with different means were significant by a fault rate of at least 5%. The two methods of alkali application showed no significant differences.