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ANSI/OEOSC OP3.001-2001 (R2014)
Optics and Electro-Optical Instruments – Optical Glas
This Standard establishes uniform practices for stating and interpreting specifications, tolerances, and functional requirements for optical glass that is used to fabricate lenses and other optical elements, such as prisms, windows, light pipes, etc., used in optical assemblies, systems, instruments, or other related uses.
Optics and Electro-Optics Standards Council [oeosc]