DIN EN 60745-2-9:2010
手持式電動工具.安全性.第2-9部分:攻絲機的詳細要求(IEC 60745-2-9-2003修訂本+A1-2008).德文版本EN 60745-2-9-2009
Hand-held motor-operated electric tools - Safety - Part 2-9: Particular requirements for tappers (IEC 60745-2-9:2003, modified + A1:2008); German version EN 60745-2-9:2009