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ISO 4852:1978
New product
ISO 4852:1978 Personal eye-protectors - Infra-red filters - Utilisation and transmittance requirements
standard by International Organization for Standardization, 10/01/1978
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Full Description
Gives the numbering of and transmittance requirements for filters. It also defines guidance on their selection and use. Optical test methods form subject of ISO 4854. Non-optical test methods form the subject of ISO 4855. The symbol for filters includes a code number of transmittance is described in clause 5 of ISO 4854.