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Colorimetry Part 5- CIE 1976 L*u*v* colour space and u', v' uniform chromaticity scale diagram (ISO/CIE 11664-5-2016). Original standard UNE-EN ISO 11664-5-2017 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-EN ISO CIE 11664-5-2025

Measurement of radioactivity in the environment. Air- radon-222. Test method for soil gas with sampling at depth. Original standard UNE-EN ISO 11665-11-2019 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of radioactivity in the environment. Air- radon-222. Origins of radon and its short-lived decay products and associated measurement methods. Original standard UNE-EN ISO 11665-1-2019 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of radioactivity in the environment. Air- radon-222. Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products. Original standard UNE-EN ISO 11665-2-2019 in PDF full version. Additional info + preview on request

Document status: Active

Measurement of radioactivity in the environment. Air- radon-222. Spot measurement methods of the activity concentration. Original standard UNE-EN ISO 11665-6-2020 in PDF full version. Additional info + preview on request

Document status: Active

Ships and marine technology Heading control systems (ISO 11674-2000). Original standard UNE-EN ISO 11674-2002 in PDF full version. Additional info + preview on request

Document status: Active