STB PDF

Geometrical product specifications (GPS). Surface texture: Profile. Terms, definitions and surface texture parameters. Original standard BS EN ISO 21920-2-2022 in PDF full version. Additional info + preview on request

Document status: Active

Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021). Original standard BS EN ISO 21922-2021 in PDF full version. Additional info + preview on request

Document status: Active

Welding consumables. Wire electrodes, wires, rods and deposits for gas shielded arc welding of creep-resisting steels. Classification. Original standard BS EN ISO 21952-2012 in PDF full version. Additional info + preview on request

Document status: Replaced by STB BS EN ISO 21952-2025

High-pressure flexible connections for use with medical gas systems. Original standard BS EN ISO 21969-2009 (2010) in PDF full version. Additional info + preview on request

Document status: Active

Plastics. Polyketone (PK) moulding and extrusion materials - Designation system and basis for specifications. Original standard BS EN ISO 21970-1-2018 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Plastics. Polyketone (PK) moulding and extrusion materials - Preparation of test specimens and determination of properties. Original standard BS EN ISO 21970-2-2018 in PDF full version. Additional info + preview on request

Document status: Withdrawn