This standard has been revised by ISO 16321-1:2021
Abstract
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.
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Status: WithdrawnPublication date: 1979-02
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Edition: 1Number of pages: 2
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- ICS :
- 13.340.20 Head protective equipment
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