“M & Y” Factors Thickness “m” “y” inches mm psi N/mm2 kgf/mm2 COMPRESSED NON-ASBESTOS 3000 1/16 1.6 4.2 3050 21.0 2.14 1/8 3.2 5.2 4400 30.3 3.09 3001 1/16 1.6 4.5 2200 15.2 1.55 1/8 3.2 4.5 3600 24.8 2.53 3200/3400 1/16 1.6 3.5 2100 14.5 1.48 1/8 3.2 6.6 3000 20.7 2.11 3300 1/16 1.6 2.1 3050 21.0 2.14 1/8 3.2 4.0 3500 24.1 2.46 3700 1/16 1.6 3.5 2800 19.3 1.97 1/8 3.2 6.7 4200 29.0 2.95 CP-3900 1/16 1.6 1.5 1800 12.4 1.27 1/8 3.2 1.5 3600 24.8 2.53 IFG-5500 1/16 1.6 6.6 2600 17.9 1.83 1/8 3.2 6.6 3300 22.8 2.32 IFG-5507 1/16 1.6 3.5 2400 16.5 1.69 1/8 3.2 5.5 3900 26.9 2.74 HTC-9800 1/16 1.6 3.5 2350 16.2 1.65 1/8 3.2 8.0 3200 22.1 2.25 HTC-9850 1/16 1.6 6.5 2550 17.6 1.79 1/8 3.2 8.0 2800 19.3 1.97 G-9900 1/16 1.6 4.5 4100 28.3 2.88 1/8 3.2 6.0 4100 28.3 2.88 ST-706 1/16 1.6 11.4 4800 33.1 3.37 1/8 3.2 22 6500 44.8 4.57 Thickness “m” “y” inches mm psi N/mm2 kgf/mm2 GYLON® 3500 Fawn 1/16 1.6 5.0 2750 19.0 1.93 1/8 3.2 5.0 3500 24.1 2.46 3504 Blue 1/16 1.6 3.0 1650 11.4 1.16 1/8 3.2 2.5 3000 20.7 2.11 3/16 4.8 2.5 3000 20.7 2.11 1/4 6.4 2.5 3000 20.7 2.11 3510 Off-White 1/16 1.6 2.0 2350 16.2 1.65 1/8 3.2 2.0 2500 17.2 1.76 3530 Black 1/16 1.6 2.8 1650 11.4 1.16 3540 1/16 1.6 3.0 1700 11.7 1.20 1/8 3.2 3.0 2200 15.2 1.55 3/16 4.8 2.0 2200 15.2 1.55 1/4 6.4 2.0 2500 17.2 1.76 3545 1/16 1.6 2.6 1500 10.3 1.05 1/8 3.2 2.0 2200 15.2 1.55 3/16 4.8 2.0 2200 15.2 1.55 1/4 6.4 7.0 3700 25.5 2.60 3565 ENVELON® 1/16 1.6 2.8 1400 9.7 0.98 1/8 3.2 3.7 2300 15.9 1.62 3/16 4.8 5.5 2800 19.3 1.97 1/4 6.4 6.0 2800 19.3 1.97 Diaphragm 3524 .030 0.8 5.0 2000 13.8 1.41 .050 1.3 5.0 2000 13.8 1.41 HP 3560 1/16 1.6 5 3500 24.1 2.46 1/8 3.2 5 4000 27.6 2.81 HP 3561 1/16 1.6 5 3500 24.1 2.46 1/8 3.2 5 4000 27.6 2.81 Glass Filled PTFE 9405 1/16 1.6 2.6 1550 10.7 1.09 1/8 3.2 3.0 1800 12.4 1.27 3535 Joint Sealant 1/4 6.4 2 3000 20.7 2.11 Thickness “m” “y” inches mm psi N/mm2 kgf/mm2 GRAPH-LOCK® 3123 (Homogeneous) 1/16 1.6 2.0 2500 17.2 1.76 1/8 3.2 2.0 2500 17.2 1.76 3124 (Wire-Inserted) 1/16 1.6 2.0 2500 17.2 1.76 1/8 3.2 2.0 2500 17.2 1.76 3125SS 1/16 1.6 6.5 3300 22.8 2.32 1/8 3.2 11.8 5900 40.7 4.15 3125 TC 1/16 1.6 2.6 2500 17.2 1.76 1/8 3.2 6.0 3000 20.7 2.11 Utility Grade 2900 1/16 1.6 10 5000 34.5 3.52 1/8 3.2 24 7000 48.3 4.92 2930 1/16 1.6 6.0 4500 31.0 3.16 2950 1/16 1.6 4.5 3000 20.7 2.11 1/8 3.2 7.0 4000 27.6 2.81 Compressed Asbestos 900 1/16 1.6 3.5 3000 20.7 2.11 900T 1/8 3.2 4.0 4000 27.6 2.81 VEGETABLE FIBER 660 1/16 1.6 2.2 1000 6.9 0.70 1/8 3.2 2.2 2000 13.8 1.41 681 1/16 1.6 9.2 2700 18.6 1.90 1/8 3.2 5.5 2400 16.5 1.69
All factors were developed with procedures from ASTM F-586 at leak rates of less than 1 cc/min.
with nitrogen gas as the test medium.
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