Protective Clothing Tests

STANAG 2920 Ballistic Test method for Personal Armor and Combat Suits

EUROLAB laboratory provides testing and compliance services within the scope of STANAG 2920 standard. STANAG 2920, The purpose of this agreement is to standardize the guidelines for determining the ballistic boundary protection BL(P) of body armor, helmets and materials used in the manufacture of these parts. The test results are intended to help compare the degree of ballistic protection provided by various body armors.

STANAG 2920 Kişisel Zırh Malzemeleri ve Savaş Kıyafetleri için Balistik Test yöntemi

This standard is used to measure the ability of materials to stop fragments and shrapnel. The measurement technique was originally developed for body armor, but should now be looked at in general use in all cases where parts are of primary concern.

Participating countries agree to apply the principles contained herein in the testing of personal armor (helmets and body armor) or personal armor materials.

The agreement aims to cover testing with small arms rounds or fragment-simulating rounds. It is intended to aid in the comparison of the ballistic protective properties of armor materials and does not preclude the additional use of more detailed techniques such as Casualty Reduction Analysis or testing at various slopes that can take into account armor design and other considerations.

According to STANAG 2920, tests are performed by shooting FSPs (Fragment Simulation Bullets) at different speeds onto the test sample while measuring the velocity of each FSP. By varying the velocities, an estimate of the ballistic limit, which is the rate at which the material beats the part, can be obtained after a series of shots.

Combat units are rarely injured or killed by bullets, but are at high risk from primary (direct) and secondary (peripheral) fragmentation. To combat these threats, Intelligent Armor Limited uses a specific range of Fragmentation F levels whose performance is measured by a V50 value.

The V50 test is the internationally accepted standard for assessing the fragmentation resistance of personal protection. Fragmentation testing is performed using Fragment Simulated Projectiles (FSPs), which are available in a range of weights after approximately binomial progression. The test is performed by firing FSPs in armor at increasing velocities until the average velocity of penetrating and non-piercing projectiles is achieved.

The higher the ballistic velocity, measured in meters/second, the higher the grade of material, which is shown as V50m/s. V000 (Velocity 50% or average velocity) is the average of the velocities recorded for six fair impacts, consisting of the three lowest velocities for full penetration and the three highest velocities for partial penetration, provided the spread is no more than 50 meters/second. (STANAG 40).

STANAG (Standardization Agreement) is a statement that sets the military standards of NATO member countries. All military materials produced by NATO member countries must comply with these standards. EUROLAB Laboratory provides testing services within the scope of STANAG 2920.

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