DIN EN IEC 62056-6-2 : 2021 Title: Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes (IEC 62056-6-2:2017); English version EN IEC 62056-6-2:2018 Year: 2021 Publisher: DIN Media GmbH Availability: Within 1-2 working days