"COVER MUST BE 100% WATERPROOF (ISO 811),HAVE A MINIMUM MOISTURE VAPOR TRANSMISSION RATE OF 3000 G/M2/24HRS (ISO 15496,BLOCK A MINIMUM 99% OF ULTRAVIOLET A & B RAYS, HAVE A MINIMUM BREAKING STRENGTH OF 350 LBF IN THE WRAP DIRECTION AND 300 LB IN THE FILL DIRECTION (ASTM D 5035,INCLUDE A VAPOR CORROSION INHIBITOR, SEAMS HAVE A MINIMUM STRENGTH OF 35LBS/INCH, HAVE A MINIMUM TONGUETEAR OF 20-LBS IN THE WRAP DIRECTION AND 23LBS IN THE FILL DIRECTION (ASTM D2261)"