Directly heated negative temperature coefficient thermistors - Part 1: Generic specification (IEC 60539-1:2008); German version EN 60539-1:2008— 49 стр.
Sterilization of health care products - Biological indicators - Part 1: General requirements (ISO 11138-1:2017); German version EN ISO 11138-1:2017— 52 стр.
Properties and reference hierarchy for product data exchange - Part 3: Textural and information technological definition of the property attributes— 31 стр.
Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements (IEC 61010-1:2010) (english version)