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Aerospace series. Steel X12CrNiMoV12-3 (1.4938). Air melted and consumable electrode remelted. Hardened and tempered. Bars. De ≤ 150 mm. 900 MPa ≤ Rm ≤ 1 100 MPa. Original standard BS EN 4825-2021 in PDF full version. Additional info + preview on request

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Aerospace series. Zinc-Nickel (12 %-16 % Ni) plating of steels with specified tensile strength ≤ 1 450 MPa, copper alloys, nickel alloys and aluminium alloys for parts and fasteners. Original standard BS EN 4826-2014 in PDF full version. Additional info + preview on request

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Aerospace series. Hexavalent chromium free anodizing of aluminium and aluminium alloys. Original standard BS EN 4827-2024 in PDF full version. Additional info + preview on request

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Aerospace series. Thermal drift of LED luminaires. Classification and measuring methods. Original standard BS EN 4828-2022 in PDF full version. Additional info + preview on request

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Gas-fired central heating boilers. Type C boilers of nominal heat input not exceeding 70 kW. Original standard BS EN 483-1999 + A4-2007 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Aerospace series. Connectors, optical, rectangular, modular, operating temperature 125 °C, for EN 4639-10X contacts - Technical specification. Original standard BS EN 4830-001-2015 in PDF full version. Additional info + preview on request

Document status: Active