2022DIN EN ISO 23537-1:2022-10 Requirements for sleeping bags - Part 1: Thermal, mass and dimensional requirements for sleeping bags designed for limit temperatures of -20 °C and higher (ISO 23537-1:2022); German version EN ISO 23537-1:2022
2018DIN EN ISO 23537-1:2018 Requirements for sleeping bags - Part 1: Thermal and dimensional requirements (ISO 23537-1:2016 + Amd 1:2018); German version EN ISO 23537-1:2016 + A1:2018
2017DIN EN ISO 23537-1:2017 Requirements for sleeping bags - Part 1: Thermal and dimensional requirements (ISO 23537-1:2016); German version EN ISO 23537-1:2016