The Sharp Helmet site in the U.K. has a lot of good information. These tests are comparable to the DOT certifications in the US but are more through, at least in opinion. For example if you are considering a modular "flip" style helmet they test how well the chin bar stays retained or "locked" in an accident.
The downside of this site is since they only test helmets available in the UK not everything we can purchase is tested. But their is a lot of good info...
The downside of this site is since they only test helmets available in the UK not everything we can purchase is tested. But their is a lot of good info...