Grade B impact protection cannot be found on safety spectacles because the European Standard (EN 166) does not permit spectacles to be tested or certified to this level of impact resistance.

Impact resistance is assessed by firing 6mm steel ball bearings at protective eyewear at set speeds. These speeds determine the rating:

Grade F (Low Energy Impact) – Tested at 45 m/s (101 mph). This is the maximum impact rating applicable to safety spectacles.

Grade B (Medium Energy Impact) – Tested at 120 m/s (270 mph). This rating only applies to goggles and face shields.

Grade A (High Energy Impact) – Tested at 190 m/s (425 mph). This is the highest rating and is also only applicable to face shields.

Grade S (Increased Robustness) – Not tested for ballistic impact but denotes minimum mechanical strength. Often used for mesh protectors.

If you require Grade B impact protection, you will need to select either goggles or a face shield that has been certified to this level.

Summary of key points:

• Safety spectacles cannot be certified to Grade B impact under EN 166.
• Grade B impact (120 m/s) is only applicable to goggles and face shields.
• Spectacles are limited to a maximum of Grade F (45 m/s).
• Face shields can be certified up to Grade A (190 m/s).
• Grade S applies to minimum robustness, typically for mesh protectors.

If you need further support, please contact our Technical Support Team using the email: technical@jspsafety.com or contact us via our WhatsApp.