Medical X-ray equipment up to 300 kV – Rules for testing of radiation protection after installation, maintenance and essential modification
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2005

Medical X-ray equipment up to 300 kV – Rules for testing of radiation protection after installation, maintenance and essential modification
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2013