For single wire marking, marking of optical fibers, marking before assembly, printing with a commercially available laser printer, printing with the help of the FLEXIMARK® software (download at http://www.lappkabel.de/kennzeichnungssoftware/kennzeichnungssoftware.html), easy to install, resistant to acids, alkalis, distilled water, salt water and transformer oil in accordance with the SP 2171 method, UV resistance was tested through 1 year of outdoor use in Sweden, various criteria such as ageing resistance and chemical resistance were tested by the independent SP test institute in accordance with the SP 2171 method (test results see selection table A15),
