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IEC 61228:2008 pdf download – Fluorescent ultraviolet lamps used for tanning – Measurement and specification method

Posted on April 28, 2022 by admin

IEC 61228:2008 pdf download – Fluorescent ultraviolet lamps used for tanning – Measurement and specification method 4.1 Ageing Before the initial measurements，lamps shall be aged for a period of 5 […]