ISO 4850:1979
Personal eye-protectors for welding and related techniques; Filters; Utilisation and transmittance requirements

Standard No.

ISO 4850:1979

Release Date

1979

Published By

International Organization for Standardization (ISO)

Latest

ISO 4850:1979

Scope

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.

ISO 4850:1979 history

• 1979 ISO 4850:1979 Personal eye-protectors for welding and related techniques; Filters; Utilisation and transmittance requirements