Classification of environmental conditions. Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068. Storage— 50 стр.
Classification of environmental conditions - Part 3 Classification of groups of environmental parameters and their severities - Section 1: Storage— 42 стр.
Railway applications - Track - Safety protection on the track during work - Part 2-1: Common solutions and technologies - Technical requirements for Track Warning Systems (TWS); German version EN 16704-2-1:2016— 32 стр.