Jakob H, Ummenhofer B
Derm Beruf Umwelt. 1983;31(2):44-8.
Metal workers who up to 4 h prior to the alkali resistance (AR) test had applied different O/W-emulsions revealed a better mean AR on the forearms than those who had used W/O-emulsions or no protective skin ointments at all. Similar test results were achieved in 9 metal workers tested in a right-left comparison under standardized external conditions as in more than 300 workers of various industries. By a right-left comparison of an O/W- and W/O-emulsion with 14 students it was shown that all subjects with a low pre-test AR revealed an increased AR after the application of the ointment. Proved differences in AR-reactivity related to occupation and skin constitution of the subject tested are considered to be due to differences in the hydration rate of the horny layer.
在耐碱性（AR）测试前4小时内涂抹了不同水包油型乳液的金属工人，其前臂的平均AR值比那些使用油包水型乳液或根本未使用防护性皮肤药膏的工人更高。在标准化外部条件下对9名金属工人进行左右对比测试，以及对300多名不同行业的工人进行测试，都得到了类似的测试结果。通过对14名学生使用水包油型乳液和油包水型乳液进行左右对比测试发现，所有测试前AR值较低的受试者在涂抹药膏后AR值都有所增加。与所测试受试者的职业和皮肤体质相关的AR反应性已证实的差异，被认为是由于角质层水合速率的差异所致。
