Levels of Protection

PROFILON Security Film→Levels of Protection

Factors influencing the security properties of glass

Levels of Protection

Types of protection:

  • Anti-spalling protection
  • Protection against objects thrown against it
  • Anti penetration protection
  • Anti projectiles or bullets
  • Anti explosion protection

Regulations and resistance levels

Normative resistance EN 356
EN 1063
EN 13541
Level of resistance against thrown objects P1A
Level resistance to penetration P6B
Level resistance to projectiles and bullets BR1
Level resistance to explosion ER1


To evaluate the resistance at each of these levels you perform the following test:

Test resistance against thrown objects
The test simulates an attack using heavy missiles, and is used to assess safety glass against acts of vandalism and attempted theft.

Using a steel ball (4.11 kg and 10 cm diameter) on a glass format 900 x 1100 mm. The ball falls from the same height, a certain number of times in a central area (triangle of 30 x 30 x 30 cm).

Standards Resistance level Falling height Number of repetitions
EN356 P1A 1500 mm 3
EN356 P2A 3000 mm 3
EN356 P3A 6000 mm 3
EN356 P4A 9000 mm 3
EN356 P5A 9000mm 3×3

Test of resistance to penetration

The test simulates a heavy edged weapon attack, and is used to assess safety glass against attempted theft very insistent.

Ax is used (2 kg), guided by a machine with a speed of 11 m / s (about 300 J) on a glass format 900 x 1100 mm. It attempts to assess the number of strokes needed to open a gap of 400 x 400 mm.

Standards Resistance level Number of repetitions
EN356 P6B 30 to 50 hits
EN356 P7B 51 to 70 hits
EN356 P8B Over 70 hits

Test of resistance to projectiles and bullets

The test simulates a gun attack on a glass format 900 x 1100 mm. The test was performed by 3 shots in a radius of 30 cm, with a certain type of projectile. The difference between «S» with shrapnel and «NS» with anti shrapnel.

Resistance Level Caliber Mass Speed(m/s) Shooting Distance (m)
BR1 (S/NS) 22 LR 2,6±0,10 360±10 10
BR2 (S/NS) 9×19 mm 8,0±0,10 400±10 5
BR3 (S/NS) 357 Magnum 10,25±0,10 430±10 5
BR4 (S/NS) 44 Magnum 15,55±0,10 440±10 5
BR5 (S/NS) 5,56 x 45 mm 4,0±0,10 950±10 10
BR6 (S/NS) 7,62 x 51 mm 9,45±0,10 830±10 10
BR7 (S/NS) 7,62 x 51 mm 9,75±0,10 820±10 10
SG1 (S/NS) 12/70 (x1 disp.) 31,0 ±0,50 420±20 10
SG1 (S/NS) 12/70 31,0 ±0,50 420±20 10

Test of resistance to explosions

The test simulates a bombing on a glass format 900 x 1100 mm in
upright. The test defines that resistance is achieved against an explosion of TNT (or equivalent). The difference between «S» with shrapnel and «NS» with anti shrapnel.

Blast resistance level Positive maximum pressure shockwave reflective ± 5% Minimum pressure positive phase
ER1 50 – 100 kPa ≥20
ER2 100 – 150 kPa ≥20
ER3 150 – 200 kPa ≥20
ER4 250 – 300 kPa ≥20

Test of resistance to a fall

The test simulates a person falling about 75 Kg (walking or running) on ​​a vertical glass surface. It is estimated that approximately 60% of body weight over the glass hit, so that the tapping test is simulated with 50 Kg (twice a tire with 3.5 bar pressure in each tire) three times from a certain height on a glass 876 x 1938 mm.

1ª Ranking Drop height (mm)
3 190 mm
2 450 mm
1 1200 mm
2ª Ranking Break description
Type A Large number of cracks with many cracks and sharp edges
Type B Large number of cracks, the joint parts are held without falling
Tyoe C Parts fall broken into many small pieces

Old and new regulations on special safety glazing

Acristalamiento especial de seguridad