Guide to Frame Markings
Select the FRAME Markings below to find out more information
Certification Mark
Mechanical Strength
| S | Increased strength |
| F | Low energy impact, resists a 6mm, 0.86g ball at 45m/s |
| B | Medium energy impact, resists a 6mm, 0.86g ball at 120m/s |
| A | High energy impact, resists a 6mm, 0.86g ball at 190m/s |
Fields of Use (where applicable)
| NONE | General use |
| 3 | Liquid droplets or splashes |
| 4 | Large dust particles > 5 μm |
| 5 | Gases and small dust particles < 5 μm |
| 8 | Short circuit electric arc |
| 9 | Molten metal and hot solids |
Number of the EN Standard
Identity of the Manufacturer