Technical Notes


Thrace-LINQ TECH NOTE #20
METRIC CONVERSION FACTORS FOR GEOTEXTILES

PROPERTY ENGLISH UNITS MULTIPLY BY METRIC UNITS
AOS U.S. Standard Sieve none mm
Asphalt Retention gal/yd2 4.53 l/m2
CBR Puncture lb 4.45 N
Flow Rate gal/min/ft2 40.7447 l/min/m2
Grab Strength lb 4.45 N
Mass per Unit Area oz/yd2 33.95 g/m2
Mullen Burst psi 6.894 kPa
Permeability cm/sec none same
Permittivity sec-1 none same
Puncture lb 4.45 N
Roll Area yd2 0.8361 m2
Roll Length ft 0.305 m
Roll Weight lb 0.454 kg
Roll Width in 0.0254 m
Thickness mil 0.0254 mm
Trap Tear lb 4.45 N
UV Resistance % strength retained none same
Wide Width lb/in 0.1752 kN/m