BS ISO 9022-21:1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Optics and optical instruments. Environmental test methods Combined low pressure and ambient temperature or dry heat
Hardcopy , PDF
28-02-2014
English
15-09-1998
Defines procedures for testing optical instruments and instruments containing optical components, under equivalent conditions, for resistance to combined low pressure and ambient temperature or dry heat. Investigates the extent to which optical thermal, mechanical, chemical and electrical performance characteristics of the specimen are affected, for instance instruments installed or transported inside aircraft or flying objects which do not provide pressure equalization.
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