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ISO 4850:1979

Personal eye-protectors for welding and related techniques -- Filters -- Utilisation and transmittance requirements

General information
Withdrawn from 02.03.2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
02.03.2021
Main
01.07.1979
Main
Specifies the numbering of and transmittance requirements for filters intended to protect operatives performing manual work involving welding, braze welding, arc gouging and thermal cutting. It also gives guidance on the selection and use of these filters. Optical test methods are the subject of ISO 4854. Non-optical test methods are the subject of ISO 4855.
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Standard monitoring