Ballistic Testing
In the US, H.P.White Laboratory in Maryland has been the most prominent commercial test laboratory. H.P. White generally tests static samples of ballistic materials. This is generally done at 90 degree angles with numerous shots performed at specific points on the ballistic sample.
Internationally, the most commonly used Lab is in Germany. The Ulm Laboratory in Ulm, Germany.
The German test lab verify ballistic integrity by testing completed armored vehicles. This complete and exacting testing is quite expensive and most armorers do not have the resources to pay for the complete test of the vehicle as it means the entire vehicle is hit with over 200 rounds.
Threat Chart
| Weapon | Ammo | CEN | NIJ | UL | DIN | Glass thickness required to defeat |
| Rifle | .30-06 AP | B7 | IV | 5 | 52mm to 65 mm | |
| Rifle/ M193 | 7.62 x 51mm | B6 | III | 5,8 | 4 | 39/40 mm |
| Rifle/ M16 | 5.56 x 45mm | B5 | 7 | 39/40mm | ||
| Rifle | .30-06 | 4 | 39/40mm | |||
| Rifle/Ak-47 | 7.62 x 39mm | 32mm | ||||
| Handgun | .44 Magnum | B4 | IIIA | 6 | 20mm |
Ballistic Standards
- CEN - Belgium
- DIN - Germany
- NIJ - USA (National Institute of Justice)
- UL - USA (Underwriter Laboritories)
- The standard most used around the world is the Belgium CEN Norm table.