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IEC TR62471-4 Photobiological Safety of Lamps and Lamp Systems - Test Methods
IEC TR 62471-4 is an international standard published by the International Electrotechnical Commission (IEC), focusing on photobiological safety testing methods for lamps and lamp systems.
IEC TR 62471-4 provides a detailed introduction to two main testing methods: Class A and Class B. The A-level method is based on high-precision laboratory techniques for accurately evaluating achievable emission values; The B-level method uses portable instruments to estimate the achievable emission values. Both methods specify practical procedures for measuring radiance and spectral radiance to ensure the accuracy and reliability of test results.
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