Ophthalmic optics and instruments - Anomaloscopes for the diagnosis of congenital defects of red-green-colour vision and aquired disorders - Fundamental requirements; Text in German and English— 17 стр.
Rolling bearings - Angular contact radial ball bearings - Part 4: Single row, double-direction - not self-locking, with double-split inner ring (Four-point contact bearing)— 10 стр.
Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 3: Fittings (ISO 15875-3:2003 + Amd 1:2020); German and English version EN ISO 15875-3:2003 + A1:2020— 42 стр.
Designations for rolling bearings; general, metric series symbols for ball bearings, cylindrical roller bearings and self-aligning roller bearings— 14 стр.
Rolling bearings - Angular contact radial ball bearings - Part 4: Single row, double-direction - not self-locking, with double-split inner ring (Four-point contact bearing)— 10 стр.
Designations for rolling bearings; general, metric series symbols for ball bearings, cylindrical roller bearings and self-aligning roller bearings— 14 стр.
Testing of lubricants - Mechanical-dynamic testing in the roller bearing test apparatus FE8 - Part 2: Test method for lubricating greases, oblique ball bearing or tapered roller bearing— 6 стр.