By James Morrison | Published: April 5, 2012
These meet the EN 1621-2 CE standard and the testing includes placing a component on a 150mm radius dome, then impact is applied with a kerb stone striker. To pass Level 1 the component must on average transmit less than 18kN with no value exceeding 24kN. For Level 2 average transmission is less than 9kN with no value exceeding 12kN. The D3O CE certified back components exceed these requirements for both levels.