German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 53: Determination of Trifluoroacetic acid (TFA) in water - Method using liquid chromatography and mass spectrometric detection (LC-MS/MS) after direct injection (F 53)

Uninterruptible power systems (UPS) - Part 5-3: DC output UPS - Performance and test requirements

Electrcity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM application layer

Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 5-3: EMC requirements for HBES/BACS used in industrial environments (IEC 23/880A/CD:2019); Text in German and English

Liaison letter from SC 3C on 101/295/FDIS: IEC 61340-5-3 Ed.1: ELECTROSTATICS - Part 5-3: Protection of electronic devices from electrostatic phenomena - Properties and requirements classification for packaging intended for electrostatic discharge sensitive devices

IEC 62056-5-3 Ed.1.0: ELECTRICITY METERING DATA EXCHANGE - THE DLMS/COSEM SUITE - Part 5-3: DLMS/COSEM Application layer

Review report on IEC 62056-53: Electricity metering - Data exchange for meter reading, tariff and load control - Part 53: COSEM application layer, Annex B.3.

Review report on IEC 62056-53 Ed 2.0: Electricity metering - Data exchange for meter reading, tariff and load control - Part 53: COSEM application layer, Annex B.2.

IEC 60947-5-3 Ed.2: Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching elements - Requirements for proximity devices with defined behaviour under fault conditions (PDDB)

ISO/IEC 14543-5-3: Information technology - Home Electronic System (HES) Architecture - Intelligent grouping and resource sharing HES Class 2 & Class 3 - Part 5-3: Basic application