Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated - Classification: 1100 MPa/235 °C; German version EN 2897:1996
Edition 1996-09

Aerospace series - Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated - Classification: 1550 MPa (at ambient temperature)/315 °C; German version EN 2874:1996
Edition 1996-09

Aerospace series - Nuts, hexagonal, self-locking, in heat resisting steel FE-PA92HT (A286), MoS₂ coated - Classification: 1100 MPa (at ambient temperature)/425 °C; German version EN 3723:1996
Edition 1996-05

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of oxygen consumption rate (S 6)
Edition 1986-04

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total dry residue, filtrate dry residue and residue on ignition (H 1)
Edition 1987-01

German standard methods for the examination of water, waste water and sludge; test methods using water organisms (group L); determination of oxygen production and oxygen consumption in an aquatic environment (SPG and SVG) by means of the light and dark bottle method (L 13) (determination of biogenic aeration rate)
Edition 1983-09

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the chemical oxygen demand (COD) (S 9)
Edition 1986-09

Continuous conveyors - Belt conveyors for loose bulk materials - Basis for calculation and dimensioning
Edition 2011-12

Petroleum products and lubricants - Determination of the dropping point of grease with an automatic apparatus (ISO 22286:2018)
Edition 2020-09

Chlorinated polyvinyl chloride (PVC-C) pipes - Dimensions
Edition 2009-10