This part of ISO 9022 specifies the methods relating to the environmental tests of optical instruments including additional assemblies from other fields (e.g. mechanical, chemical, and electronic devices), under equivalent conditions, for their ability to resist the influence of salt mist.
Exposure to salt mist mainly results in the corrosion of metals. Effects might also occur by way of clogging or binding of moving parts.
The purpose of the testing is to assess, as early as possible, the ability of the instrument, and particularly of the surfaces and protective coatings of the instrument, to resist the effects of a salt atmosphere.
ISO 9022-4:2014 Referenced Document
ISO 9022-1:2012 Optics and photonics - Environmental test methods - Part 1: Definitions, extent of testing
ISO 9022-4:2014 history
2023ISO 9022-4:2014/Amd 1:2023 Optics and photonics — Environmental test methods — Part 4: Salt mist — Amendment 1
2014ISO 9022-4:2014 Optics and photonics - Environmental test methods - Part 4: Salt mist
2002ISO 9022-4:2002 Optics and optical instruments - Environmental test methods - Part 4: Salt mist
1994ISO 9022-4:1994 Optics and optical instruments - Environmental test methods - Part 4: Salt mist