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Guardian ExtraClear™ Plus
EN 572-9:2005
Basic soda lime silicate glass intended to be used in buildings and construction
works values as of May 2013
03mm04mm05mm06mm08mm10mm12mm
Resistance to fire test NPDNPDNPDNPDNPDNPDNPD
Reaction to fire A1A1A1A1A1A1A1
External fire performance NPDNPDNPDNPDNPDNPDNPD
Bullet resistance (EN 1063) NPDNPDNPDNPDNPDNPDNPD
Explosion resistance NPDNPDNPDNPDNPDNPDNPD
Burglar resistance (EN 356) NPDNPDNPDNPDNPDNPDNPD
Pendulum body impact resistance (EN 12600) NPDNPDNPDNPDNPDNPDNPD
Resistance against sudden temperature changes and temperature differentialsK40404040404040
Wind, snow, permanent and imposed load resistancemm345681012
Direct airborne sound insulation (EN 12758)dB28 (-1;-4)29 (-2;-3)30 (-1;-2)31 (-2;-3)32 (-2;-3)33 (-2;-3)34 (0;-2)
Thermal properties        
Thermal transmittance (U-value)W/(m².K)5.85.85.75.75.65.65.5
Radiation properties        
Light transmission τV (EN 410) 0.910.910.910.910.900.900.90
Light reflection ρV (EN 410) 0.080.080.080.080.080.080.08
Solar energy transmission τE (EN 410) 0.890.890.880.870.860.850.83
Solar energy reflection ρE (EN 410) 0.080.080.080.080.080.080.08
NPD = No Performance Determined