ISO 4850:1979
$27.95
Personal eye-protectors for welding and related techniques — Filters — Utilisation and transmittance requirements
| Published By | Publication Date | Number of Pages |
| ISO | 1979-07 | 7 |
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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