Respiratory protective devices - Half masks and quarter-masks - Requirements, testing, marking; German version EN 140:1998
Edition 1998-12

Technical product documentation - Life cycle model and allocation of documents (ISO 15226:1999)
Edition 2017-03

Electrolytically zinc-nickel (ZN) coated steel flat products - Technical delivery conditions; German version EN 10271:1998
Edition 1998-12

Respiratory protective devices - Fresh air hose breathing apparatus for use with full face mask, half mask or mouthpiece assembly - Requirements, testing, marking; German version EN 138:1994
Edition 1994-12

Respiratory protective devices - Powered fresh air hose breathing apparatus incorporating a hood - Requirements, testing, marking; German version EN 269:1994
Edition 1994-12

Biotechnology - Laboratories for research, development and analysis - Containment levels of microbiology laboratories, areas of risk, localities and physical safety requirements; German version EN 12128:1998
Edition 1998-05

Determination of chromium content of steel and iron by potentiometric or visual method (ISO 4937:1986); german version EN 24937:1990
Edition 1992-11

Metric external taper screw threads and mating internal parallel screw threads - Part 1: Nominal sizes, limit deviations, limits of size and verification
Edition 1997-06

Biotechnology - Performance criteria for cell disrupters; German version EN 12885:1999
Edition 1999-04

Chemical analysis of ferrous materials; determination of chromium in steels and iron; flame atomic absorption spectrometric method; German version EN 10188:1989
Edition 1990-04