2005DIN EN ISO 22374:2005 Dentistry - Dental handpieces - Electrical-powered scalers and scaler tips (ISO 22374:2005); English version of DIN EN ISO 22374
2000DIN EN ISO 15606:2000 Dental handpieces - Air-powered scalers and scaler tips (ISO 15606:1999); German version EN ISO 15606:1999