Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (IEC 60534-2-1:2011); German version EN 60534-2-1:2011
Edition 2012-01

Ambient air - Automated measuring systems for the measurement of the concentration of particulate matter (PM10; PM2,5); German version EN 16450:2017
Edition 2017-07

Laboratory equipment - Glove boxes - Part 2: Leakage test
Edition 2015-12

Field acceptance tests of storage pumps
Edition 1971-10

Capillary flow porometry - Measurement of through pores in solids
Edition 2022-02

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2022); German version EN ISO 5167-1:2022
Edition 2023-08

Airtight shutters - Air permeability test; German version EN 12835:2000
Edition 2001-02

Testing of gaseous fuels and other gases; calculation of reduced gas volume
Edition 1980-04

Soil quality - Physical laboratory tests - Part 9: Determination of the saturated hydraulic water conductivity in the cylindrical core-cutter
Edition 2012-07

Soil quality - Field tests - Part 9: Determination of air permeability
Edition 2011-04