Patterned Glass / Low Iron Patterned Glass    Download the full label     3,2mm* 4mm* Resistance to fire NPD NPD Reaction to fire A1 A1 External fire behaviour NPD NPD Bullet resistance NPD NPD Explosion resistance NPD NPD Burglar resistance NPD NPD Pendulum body impact resistance 1 (C) 2 1 (C) 2 Resistance against sudden temperature changes and temperature differentials 40K 40K Wind, snow, permanent and imposed load resistance of the glass unit 3mm 4mm Direct airborne sound reduction NPD NPD Thermal properties       U-value (EN 673) NPD NPD   Normal emissivity  (EN 12898)  NPD NPD Radiation properties       Light transmission and reflection 0,91/0,08/0,08 0,91/0,08/0,08   Solar energy characteristics 0,90/0,08/0,08 0,90/0,08/0,08   NPD : No Performance Determined       *NOTE: - For 3,2 mm notation, the nominal thickness is 3,0 mm and tolerance is + 0,4/- 0,0   - For 4,2 mm notation was revised as 4,0 mm on August 7th 2009.   - For 4 mm nominal thickness the tolerance is + 0,2/-0,2   (They are in compliance with the nominal thickness and tolerance values defined in EN 572-5)                  Back to product list