Issue link: http://read.dmtmag.com/i/41477
Appendix GENERAL INFORMATION UNITS OF MEASUREMENT Quantity S.I. Units Length m (meter) Other Units 1 inch (") = 0.0254 m or 25.4 mm 1 mile = 1609 m (1.609 km) 1 kilometer = 0.621 mile Mass kg (Kilogram) 1 pound (lb) = 0.4536 kg 1 kilogram (kg) = 2.205 lbs. Pressure kPa (Pascal) m/s Speed (meter per second) 1 bar* = 100 kPa 1 psi = 6.895 kPa 1 pound per square inch 1 kg/cm2 - 98.066 kPa 1 kilometer per hour (kph)* = 0.27778 m/s 1 mile per hour (mph) = 0.4470 m/s (or 1.60935 kph) * Non S.I. unit to be retained for use in specialized fields. SPEED SYMBOL The ISO* SPEED SYMBOL indicates the speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.** Speed Symbol A1 A2 A3 A4 A5 A6 A7 A8 B C D E F G J K L M N Speed (kph) 5 10 15 20 25 30 35 40 50 60 65 70 80 90 100 110 120 130 140 mph 2.5 5 10 12.5 15 20 22.5 25 30 35 40 43 50 56 62 68 75 81 87 * International Standardization Organization ** Exceeding the legal speed limit is neither recommended nor endorsed. 88 PRESSURE UNIT CONVERSION TABLE kPa 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 bar 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 lb/in2 15 22 29 36 44 51 58 65 73 80 87 94 102 109 116 123 131 138 145 152 LOAD RANGE/PLY RATING B– 4 C– 6 D– 8 E– 10 F– 12 G– 14 H– 16 J– 18 L– 20 M– 22 * kg/cm2 1.0 1.5 2.0 2.5 3.1 3.6 4.1 4.6 5.1 5.6 6.1 6.6 7.1 7.7 8.2 8.7 9.2 9.7 10.2 10.7 *