Textile machinery and accessories - Cones for cross winding - Part 4: Dimensions, tolerances and designation of cones with half angle 4° 20′ for winding for dyeing purposes (ISO 8489-4:1995)
Edition 1997-05

Optics and photonics - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide (ISO 9022-20:2015)
Edition 2015-06

Road vehicles - Metric starter motor pinions - Part 2: Pinions with 20° pressure angle (ISO 9457-2:1994)
Edition 1997-03

Indoor air - Part 20: Detection and enumeration of moulds - Determination of total spore count (ISO 16000-20:2014)
Edition 2015-11

Pneumatic fluid power - Cylinders - Compact cylinders, 1 000 kPa (10 bar) series, bores from 20 mm to 100 mm (ISO 21287:2004)
Edition 2005-12

Surveillance systems - Part 20: External perimeter security systems - Application guidelines
Edition 2023-09

Aerospace; highflexible hoses; 20 to 40 bar, dimensions
Edition 1981-12

Aerospace; highflexible hose assemblies, 20 to 40 bar; dimensions
Edition 1983-07

Aerospace; hose fittings for highly flexible hoses 20 to 40 bar, dimensions
Edition 1982-02

Aerospace; nipple hose fittings, for highly flexible hoses 20 to 40 bar; dimensions
Edition 1982-02