Colorimetry - CIEDE2000 Colour-difference formula Ingestion-build-232773 BS EN IEC 60601-2-39:2019 supersedes

BS EN IEC 60601-2-39:2019 supersedes IEC 60601-2-39:2007

BS EN 755-7 specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded seamless tubes with an outside diameter (OD) from 8 mm to 450 mm (round tube or with a cross-section contained within a circumscribing circle (CD) from 10 mm to 350 mm (other than a round tube

the relevant standards and applies to dry-type cable terminations for power cables with extruded insulation which may be used with similar interfaces for the cable entrance in switchgear applications according to EN 62271‑209

It applies to liquid-immersed transformers

General principles and methods

Colorimetry - CIEDE2000 Colour-difference formula Ingestion-build-232773 BS EN IEC 60601-2-39:2019 supersedes1 Scope This CIE International Standard specifies the method of calculating colour differences according to the CIEDE2000 formula. The Standard is applicable to input values of CIELAB L*, a*, b* coordinates calculated according to ISO 116644: 2008(E) CIE S 014 4 E: 2007. The Standard may be used for the specification of the colour difference between two colour stimuli perceived as belonging to reflecting or transmitting objects. This includes