Норма

•  1 kg/ m2 / strat 1mm (5)
•  1,2-5kg / m2 (1)
•  1,4kg/ m2 / strat 1mm (1)
•  1,5-5kg / m2 (1)
•  2-5kg / m2 (12)
•  10kg/ m2/ strat 10mm (3)
•  15kg/ m2/ strat 10mm (2)
•  1600kg/1m3 (2)
•  variabil (2)