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It principally covers the preparation of technical specifications
carrying capacity
Protection against electrical hazards from ME equipment
BS 143 and 1256
container filter indicators
Infrared free air applications Ingestion-build-47553 It principally covers the preparationWhat is BS EN 61920 Classification of IR devices about? Infrared (IR) is invisible electromagnetic radiation. BS EN 61920 describes the classification of IR devices into groups and classes to identify and clarify problems caused by mutual interference. Mutual interference is caused by the increasing parallel application of different IR systems. BS EN 61920 considers the wavelength range from 700 nm to 1600 nm and includes all systems based on free air
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