ASTM F2359 - 04(2011)

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Books

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BSI

Standard Test Method for Determining Color of a Membrane Switch Backlit with Diffuse Light Source | Backlit, CIE, Color coordinates, Colorimeter, Diffuse light, Electroluminescent material, Light emitting diodes, Luminance, Luminous color, Membrane switch, Photometer, Radiometer, Video photometer

37 GBP