Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO 5667-3:2018); German version EN ISO 5667-3:2018
Edition 2019-07

Water-tube boilers and auxiliary installations - Part 3: Design and calculation for pressure parts of the boiler; German version EN 12952-3:2022
Edition 2023-01

Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 3: Fittings; German version EN 12201-3:2011+A1:2012
Edition 2013-01

Verification of geometrical parameters - Micrometers - Part 3: Special design micrometer callipers for external measurement; characteristics, requirements, testing
Edition 1999-04

Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants; German version EN 12566-3:2016
Edition 2016-12

Water quality - Detection and enumeration of bacteriophages - Part 3: Validation of methods for concentration of bacteriophages from water (ISO 10705-3:2003); German and English version prEN ISO 10705-3:2024
Edition 2024-06

Thermal solar systems and components - Custom built systems - Part 3: Performance test methods for solar water heater stores; German version EN 12977-3:2018
Edition 2018-07

Earthworks - Part 3: Construction procedures; German version EN 16907-3:2018
Edition 2019-04

Aerospace series - Aluminium and aluminium- and magnesium- alloys - Technical specification - Part 3: Aluminium and aluminium alloy bar and section; German and English version EN 4400-3:2019
Edition 2020-10

Water quality - Sampling - Part 3: Preservation and handling of water samples (ISO/DIS 5667-3:2023); German and English version prEN ISO 5667-3:2023
Edition 2023-06