This standard specifies that optical instruments and devices containing optical components must be used under equivalent conditions at low pressure and ambient temperature.
KS B ISO 9022-21:2002 history
2022KS B ISO 9022-21-2022 Optics and optical instruments-Environmental test methods-Part 21:Combined low pressure and ambient temperature or dry heat
0000 KS B ISO 9022-21-2002(2017)
2002KS B ISO 9022-21:2002 Optics and optical instruments-Environmental test methods-Part 21:Combined low pressure and ambient temperature or dry heat