Optics and photonics - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide (ISO 9022-20:2015)— 11 стр.
Electrical engineering; classification of environmental conditions; classification of groups of environmental parameters and their severities; stationary use at non-weatherprocted locations; identical with IEC 60721-3-4:1987
Optics and optical instruments - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide (ISO 9022-20:1997)— 6 стр.
Optics and photonics - Environmental requirements - Part 1: General overview, terms and definitions, climatic zones and their parameters (ISO 10109-1:2005)— 12 стр.
Optics and optical instruments - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide (ISO 9022-20:1997)— 6 стр.
