Diaphragm-weld packings and weld ring seals for flange connections
Edition 2021-06

Stop valves for domestic water supply - Part 1: General requirements and tests for manually operated piston type gate valves of special design, gate valves and diaphragm valves, Technical rule of the DVGW
Edition 2011-01

Expansion vessels - Part 5: Closed expansion vessels with membrane for drinking water installations; Requirements, test, design and designation; DVGW code of practice
Edition 1997-03

Microbiological analysis of milk - Determination of Escherichia coli - Part 2: Membrane-agar method
Edition 2024-09

Microbiological analysis of milk - Determination of Escherichia coli - Part 2: Membrane-agar method
Edition 2023-11

Microbiological analysis of milk; determination of Escherichia coli; membrane-agar method
Edition 1991-05

Diaphragms for gas distribution and installation - Part 2: Requirements and test of reinforced diaphragm material
Edition 2012-07

Production in optical engineering - Workpiece receptions for optics - Part 2: Chucks with membranes
Edition 2002-01

Production in optical engineering - Small lenses - Supporting body extension and membrane
Edition 2016-03

Air braking systems; pneumatic actuator; brake chamber; technical data
Edition 1992-11