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ISO 9211-4:2012 Optics and photonics - Optical coatings - Part 4: Specific test methods
standard by International Organization for Standardization, 09/01/2012
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Full Description
ISO 9211 describes surface treatments of components and substrates, excluding ophthalmic optics (spectacles), by the application of optical coatings and gives a standard form for their specification. It defines the general characteristics and the test and measurement methods wherever necessary, but it is not intended to define the process method.
ISO 9211-4:2012 describes specific test procedures for coating environmental durability tests that are identified in ISO 9211-3 but not described in other normative references. They are typically performed in sequence with other environmental durability tests, as shown in ISO 9211-3:2008, Annex A.