BS ISO 9022-18:1994 : Implementation of ISO 9022-18:1994 Optics and optical instruments — Environmental test methods — Part 18: Combined damp heat and low internal pressure
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This part of ISO 9022 specifies methods for the testing of optical instruments and instruments containing optical components, under equivalent conditions, foe their ability to resist combined damp heat and low internal pressure.
BS ISO 9022-18:1994 : Implementation of ISO 9022-18:1994 Optics and optical instruments — Environmental test methods — Part 18: Combined damp heat and low internal pressure