ISO 13921-2008 Aerospace — Screws, 100 degrees reduced countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 1

ISO 13920-1996 Welding — General tolerances for welded constructions — Dimensions for lengths and angles — Shape and position ISO 13919-2-2021 Electron and laser-beam welded joints — Requirements and recommendations on quality levels for imperfections — Part 2: Aluminium, magnesium and their alloys and pure copper ISO 13919-1-2019 Electron and laser-beam welded joints — Requirements and recommendations on quality levels for imperfections — Part 1: Steel, nickel, titanium and their alloys ISO 13924-2000 Plastics Pipes and Fittings - Bending-Tensile Cycle Test for PE/Metal Transition Fittings, PE Tapping Tees and PE Branch Saddles ISO 13926-1-2018 Pen systems - Part 1: Glass cylinders for pen-injectors for medical use ISO 13926-2-2017 Pen systems - Part 2: Plunger stoppers for pen-injectors for medical use