# EN 1063

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Security glazing standard

**EN 1063**, or CEN 1063, is a security glazing standard created by the [European Committee for Standardization](/source/European_Committee_for_Standardization) for measuring the protective strength of bullet-resistant glass. It is commonly used in conjunction with EN 1522 (Euronorm standard for Bullet Resistance in Windows, Doors, Shutters and Blinds) to form a [ballistic](/source/Terminal_ballistics) classification system by which armored vehicles and structures are tested and rated.[1] A similar classification system primarily used in the [United States](/source/United_States) is [NIJ Standard 0108](https://en.wikipedia.org/w/index.php?title=NIJ_0108&action=edit&redlink=1), the U.S. [National Institute of Justice](/source/National_Institute_of_Justice)'s Standard for Ballistic Resistant Protective Materials which includes glass and armor plate.

## Threat Levels

The protective strength of a glazed shielding is rated based on the type of munitions, or threat level, it is capable of withstanding. There are 7 main standard threat levels: BR1-BR7 (also written as B1-B7), each corresponding to a different type of [small arms](/source/Small_arms) fire. Additionally, there are two other threat levels (SG1 & SG2) corresponding to shotgun munitions.

To be given a particular rating, the glazing must stop the bullet for the specified number of strikes, with multiple strikes placed within 120mm of each other in the test sample which dimensions are 500±5mm x 500±5mm.[2]

**EN 1063 multi hit strike distance sample dimensions**

The glazing should also be shatterproof and produce no [spalls](/source/Spalling) after each strike. Lastly, the classification levels are numbered in order of increasing protective strength. Thus any sample complying with the requirements of one class also complies with the requirements of previous classes. However, the SG (shotgun) classes do not necessarily comply with BR classes.[3][4]

The precise test requirements and bullet types used are as follows:

Euronorm Standard For Security Glazing Class Weapon Caliber Type Weight (g) Range (m) Velocity (m/s) Impact Energy Shots BR1 Handgun/Rifle .22 LR LB/RN 2,6 ± 0,1 10,00 ± 0,5 360 ± 10 170 J 3 BR2 Handgun 9×19mm Parabellum FJ/RN/SC 8,0 ± 0,1 5,00 ± 0,5 400 ± 10 640 J 3 BR3 Handgun .357 Magnum FJ/CB/SC 10,2 ± 0,1 5,00 ± 0,5 430 ± 10 940 J 3 BR4 Handgun .44 Magnum FJ/FN/SC 15,6 ± 0,1 5,00 ± 0,5 440 ± 10 1510 J 3 BR5 Rifle 5.56×45mm NATO FJ/PB/SCP 4,0 ± 0,1 10,00 ± 0,5 950 ± 10 1800 J 3 BR6 Rifle 7.62×51mm NATO FJ/PB/SC 9,5 ± 0,1 10,00 ± 0,5 830 ± 10 3270 J 3 BR7 Rifle 7.62×51mm NATO FJ/PB/HC 9,8 ± 0,1 10,00 ± 0,5 820 ± 10 3290 J 3

LB - [Lead Bullet](/source/Lead_bullet) FJ - [Full Metal Jacket](/source/Full_metal_jacket_(ammunition)) FN - Flat Nose RN - Round Nose CB - Cone Bullet PB - [Pointed Bullet](/source/Pointed_bullet) SC - Soft Core (lead) SCP - Soft Core (lead) & Steel Penetrator HC - [Hard core](/source/Armor-piercing_bullet), steel hardness > 63 [HRC](/source/Rockwell_scale)[5]

## References

1. **[^](#cite_ref-1)** ["Bullet Resistance"](http://www.sitec.de/en/information-and-advice/bullet-resistance). SITEC. Retrieved 2009-02-14.

1. **[^](#cite_ref-2)** ["EN 1063 protection levels"](https://militaryvehiclesdata.com/military-dictionary/military-standards/en-1063-protection-levels/). *militaryvehiclesdata.com*. Retrieved 2024-12-11.

1. **[^](#cite_ref-:0_3-0)** Watney, Jeremy (2000). ["BS EN1063 2000"](http://www.ballisticedge.com.au/BSEN1063.htm). Ballistic Edge Research Laboratory Mechanical Impact Testing. Retrieved 2009-02-14.

1. **[^](#cite_ref-4)** ["security-consulting-engineers-reading"](https://www.hephaestusconsulting.com/security-consulting-engineers-reading-img/EN-1063.pdf) (PDF). *www.hephaestusconsulting.com*. Retrieved 2024-12-11.

1. **[^](#cite_ref-5)** ["Levels of Protection According EN 1063"](https://web.archive.org/web/20080820004851/http://www.marsarmor.com/Technical%20Info/EN1063.pdf) (PDF). MARS Armor. Archived from [the original](http://www.marsarmor.com/Technical%20Info/EN1063.pdf) (PDF) on August 20, 2008. Retrieved 2009-02-14.

v t e List of EN standards EN standards CEN/CENELEC Guide 6 CEN Workshop Agreement Datex II EN 3 EN 54 EN 71 EN 166 EN 206-1 EN 207 EN 301 549 EN 417 EN 590 EN 1063 EN 1078 EN 1090 EN 1991 EN 1992 EN 1993 EN 1994 EN 1995 EN 1996 EN 1997 EN 1998 EN 1999 EN 10025 EN 10027 EN 10034 EN 10080 EN 12255 EN 12566 EN 13402 EN 13432 EN 13445 EN 13537 EN 13757 EN 13940 EN 14214 EN 15038 EN 15838 EN 16034 EN 16114 EN 28601 EN 45554 EN 50022 EN 50075 EN 50090 EN 50102 EN 50155 EN 50436 EN 55011 EN 61000-3-2 EN 61000-4-5 EN 62061 EN 62262 Meter-Bus Related Eurocodes Keymark List of CEN technical committees

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Adapted from the Wikipedia article [EN 1063](https://en.wikipedia.org/wiki/EN_1063) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/EN_1063?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.