IEC 62496-2-4/Ed1: Optical circuit boards - Basic test and measurement procedures - Part 2-4: Optical transmission test for optical circuit boards without input/output fibres

Wind energy generation systems - Part 15-1: Site suitability input conditions for wind power plants (IEC 88/781/CD:2020); Text in German and English

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW - Part 2: Safety; German and English version prEN 12309-2:2023

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW - Part 6: Calculation of seasonal performances; German version FprEN 12309-6:2023

Acoustics - Determination of aircraft noise exposure at airfields - Part 2: Evaluation and generation of additional input data for calculation - Trajectory data and data acquisition system; Text in German and English

Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW

Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW

Measuring relays and protection equipment - Part 216-1: Digital Interface - General Requirements and Tests for Protection Functions using digital communication as input and output

NP-CDV: IEC 62442-1: Energy performance of lamp control gear - Part 1: Control gear for fluorescent lamps - Method of measurement to determine the total input power of control gear circuits and the efficiency of the control gear

Proposal from the German National Committee to IEC SC 77A for an addition to IEC 61000-3-2, Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current = 16 A per phase)