Taiwan Provincial Standard of the People's Republic of China
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CNS 9943-1986
Scope
This standard specifies the determination of foreign matter (1) contained in optical glass. Note (1): The so-called foreign matter refers to undissolved matter with a maximum length of less than 0.05 mm and bubbles with a diameter of less than 0.05 mm.
CNS 9943-1986 history
1986CNS 9943-1986 Method of Test for Inclusions in Optical Glasses