Historical
DIN EN 379:2003
Personal eye protection - Automatic welding filters (Foreign Standard)
The document specifies requirements for automatic welding filters which switch their luminous transmittance to a lower predetermined value when a welding arc is ignited (referred to as welding filters with switchable scale numbers). It also specifies requirements for automatic welding filters which switch their luminous transmittance to a lower value, where the lower value of luminous transmittance is set automatically in dependence on the illuminance generated by the welding arc (referred to as welding filters with automatic scale number setting).
Content Provider
Deutsches Institut für Normung [din]
