Standards >> Glossary

AP
- Armour Piercing ammunition with a very high density core; mainly used to penetrate hardened armoured targets, and other defenses, depending on the caliber of the firearms

ARAMID
- A manufactured strong heat and fire resistant fiber; which exhibits high strength and modulus.

AREAL DENSITY
- Describes the energy absorption capacity of a material. It is measured by dividing the weight of the armoured panel by the protection area

BACK FACE DEFORMATION
- This is the term used to describe the effect of a non- penetrating projectile on the rear face of a strike plate. The extent of allowable deformation is set by the National Institute of Justice Standards (NIJ) at 44mm

BALLISTIC PANEL
- A protective component consisting primarily of ballistic resistant materials usually enclosed in a non removable water proof cover

BLUNT TRAUMA
- A type of trauma caused to a body part by back face deformation varying from a bruise to a destruction of a major organ

BULLET PROOF
- Armour products are normally referred to as "bullet resistant" since developing a completely bullet proof vest is difficult, if not impossible to achieve

CALIBER
- Measurement of the length of a gun relative to its diameter

CARRIER
- The fabric garment used to carry body armour and sometimes reffered to as the outer vest

CERAMIC PLATE
- Hard armour commonly used as inserts in soft ballistic vests. Ceramics are used in place of steel as they give the same superior protection but with less weight. Hard armour is often made up of a composite of a ceramic plate with a ballistic fiber backing covered with nylon

COMPOSITE
- Made from two or more constituent materials with significantly different physical or chemical properties, to achieve the lightest weight with the greatest capability

COVERT ARMOUR
- Armour worn under normal clothing, also referred to as "concealed vest" or VIP vest

DYNEEMA
- Ultra high molecular weight polyethylene

FMJ
- Full Metal Jacket (bullet)

GRAINS
- Bullet weight is measured in grains. A grain is equivalent to approx. 63.8 mg

JHP
- Jacketed Hollow Point (bullet)

JSP
- Jacketed Soft Point (bullet)

KEVLAR
- Registered trademark brand fiber from DuPont, Kevlar is an aramid.

LRHV
- Long Rifle High Velocity (bullet)

LRN
- Lead Round Nose (bullet)

MULTIPLE STRIKES
- A term used to describe number of projectiles striking a piece of armour

NATO
- The North Atlantic Treaty Organization

NIJ
- US National Institute of Justice, whose ballistics testing standards for armour are accepted worldwide making it the performance benchmark for ballistic resistant body armour

OTV
- Outer Tactical Vest

OVERT ARMOUR
- Armour worn outside normal clothing

PARABELLUM 9mm
- The most widely used pistol ammunition in the world; designed in 1898 by George Luger. The name Parabellum is derived from the Latin, Si vis pacem, para bellum, "If you seek peace, prepare for war". It was originally built as a 7.65mm caliber then modified to 9mm pistol

RN
- Round Nose (bullet)

SAPI
- Small Arms Protective Insert

SOFT BODY ARMOUR
- is armour made from fabric only. It can be a composite, containing more than one type of fiber

SPECTRA
- A highly modified polyethylene fiber developed by Allied Signals Corporation, which has since been taken over by Honeywell

STRIKE PLATE
- A term used to describe the hard armour insert for body armour. It is also referred to as a ballistic tile or a ballistic panel

SWC
- Semi-wadcutter, is a type of all purpose bullet commonly used in revolvers

TACTICAL ARMOUR
- Overt body armour which is specifically developed for combat use. The carrier can be designed to hold special equipment in addition to the armour

TWARON
- A heat-resistant and strong synthetic aramid fiber made by TEIJAN ARAMID

UD
- This is the abbreviation for uni-directional. This describes the orientation of fibers in a cross ply laminate; the fibers are aligned in parallel

VEST
- An item of protective clothing that absorbs the impact from firearm-fired projectiles and shrapnel fragments from explosions, on the wearer's torso. A vest comprises armour inserts and the carrier