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ISO 4851:1979

Personal eye-protectors — Ultra-violet filters — Utilisation and transmittance requirements

Feb 1, 1979
95.99   Withdrawal of Standard   Mar 2, 2021

General information

95.99     Mar 2, 2021

ISO

ISO/TC 94/SC 6

International Standard

13.340.20  

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 4851:1979
95.99 Withdrawal of Standard
Mar 2, 2021

REVISED BY

PUBLISHED
ISO 16321-1:2021