PROFILON Security Film→Levels of Protection
Factors influencing the security properties of glass
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
|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|
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)|
|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|