Aerospace series; aluminium and aluminium alloy wrought products; technical specification; part 4: tube for structures; german version EN 2070-4:1989
Edition 1990-10

German standard methods for the examination of water, waste water and sludge; anions (group D); determination of fluoride (D 4)
Edition 1985-07

German Standard Methods for Analysing of Water, Waste Water and Sludge; Physical and Physical-chemical Parameters (Group C); Determination of Temperature (C4)
Edition 1976-12

Dental elevators - Part 4: Coupland elevators (ISO 15087-4:2000); German version EN ISO 15087-4:2000
Edition 2000-10

Measurement of the electrical properties of microwave tubes; part 4: magnetrons
Edition 1981-07

Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 4: methods for stated values for batches of machines; (identical with ISO 7574-4:1985); german version EN 27574-4:1988
Edition 1989-03

Haemostaseology - Determination of thromboplastin (prothrombin) time - Part 4: Reference measurement procedure for the determination in capillary blood
Edition 2000-03

Welding - Acceptance inspection of electron beam welding machines - Part 4: Measurement of welding speed (ISO 14744-4:2000); German version EN ISO 14744-4:2000
Edition 2000-07

ISO general purpose metric screw threads - Part 9: Nominal sizes for 4 mm fine pitch threads; nominal diameter from 40 mm to 300 mm
Edition 1999-11

ISO general purpose metric screw threads - Part 4: Nominal sizes for 0,75 mm fine pitch threads; nominal diameter from 5 mm to 110 mm
Edition 1999-11