Aluminium and aluminium alloys; sheet, strip and plate; part 4: tolerances on shape and dimensions for cold-rolled products; German version EN 485-4:1993— 12 стр.
Image quality assurance in X-ray diagnostics; acceptance testing of dental radiographic equipment; rules for the inspection of image quality after installation, maintenance and modification— 12 стр.
Image quality assurance in diagnostic X-ray departments - Part 13: RöV constancy test of projection radiography systems with digital image receptors— 31 стр.