update:

EN ISO 15858:2016 UV-C Devices - Safety information - Permissible human exposure (ISO 15858:2016) - added missing standard
EN ISO 15957:2015 Test dusts for evaluating air cleaning equipment (ISO 15957:2015) - better quality
EN ISO 16170:2016 In situ test methods for high efficiency filter systems in industrial facilities (ISO 16170:2016) - better quality
EN ISO 16891:2016 Test methods for evaluating degradation of characteristics of cleanable filter media (ISO 16891:2016) - better quality

sector complete


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