Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO₂ (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents and dissolution (ISO 21079-1:2008); German version EN ISO 21079-1:2008
Edition 2008-08

Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO₂ (alternative to the X-ray fluorescence method) - Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP-AES) (ISO 21079-3:2008); German version EN ISO 21079-3:2008
Edition 2008-08

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges; German version EN 1759-4:2003
Edition 2003-12

Chronometric Terms; Indication, Rate
Edition 1970-03

Bitumen and bituminous binders - Measurement of density and specific gravity - Capillary-stoppered pyknometer method; German version EN 15326:2007+A1:2009
Edition 2009-08

Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, Class designated; German version EN 1515-3:2005
Edition 2005-12

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4: Aluminium alloy flanges; German version EN 1092-4:2002
Edition 2002-08

Timekeeping instruments - Symbolization of control positions (ISO 3158:1976)
Edition 2018-07

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges; German version EN 1092-1:2018
Edition 2018-12

Flanges and their joints - Bolting - Part 2: Classification of bolt materials for steel flanges, PN designated; German version EN 1515-2:2001
Edition 2002-03