This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
Gives the numbering of and transmittance requirements for filters. It defines guidance and their selection and use. Optical test methods form the subject of ISO 4854. Non-optical test methods form the subject of ISO 4855. The symbol for filters includes a code number and the shade number corresponding to the filter. The determination of transmittance is described in clause 5 of ISO 4854.
Status : PublishedPublication date : 1979-02
Edition : 1Number of pages : 2
Technical Committee:Eye and face protection
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