Diesel engines - Screw-in injection nozzle holders, types 20, 21, 21.1 and 27 for pintle nozzle size "S", type "B"
Edition 1997-12

Fire detection and alarm systems - Part 20: Aspirating smoke detectors
Edition 2010-05

Anodizing of aluminium and its alloys - Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85°
Edition 2021-08

Lifts for the transport of persons and goods - Part 20: Global essential safety requirements (GESRs)
Edition 2018-08

Electrical requirements for lifts, escalators and moving walks - Part 20: Cybersecurity
Edition 2022-08

Safety of toys - Part 12: Microbiological safety
Edition 2023-08

Paper and board - Measurement of specular gloss - Part 3: 20 degree gloss with a converging beam, TAPPI method
Edition 2016-04

Textile machinery and accessories - Cones for cross winding - Part 3: Dimensions, tolerances and designation of cones with half angle 4° 20′
Edition 1995-12

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
Edition 1995-12

Optics and photonics - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide
Edition 2015-03