Mullen Burst• ASTM 0-3786• 800 psi 5,510 kPa Puncture Strength' ASTM D-4833' 140 lbs 622 N CBR Puncture ASTM D-6241 1,400 lbs/ft 20 kN/m Trapezoidal Tear ASTM 0-4533 125 x 125 lbs 556 x 556 N Apparent Opening Size ASTM 04751 40 US Sieve .425 mm Permittivity ASTM I3.4491 .70 Sec-1 .70 Sec-1