... /sq.yd14g/sqm450-500Weave Pattern1/3 twillFinishPTFE, graphite, silicone finishedLoss on ignition≥2Tensile StrengthWarplbs/inch≥440N/25mm≥2000Weftlbs/inch≥264N/25mm ... : Chemical index test, strength test, abrasion test, fiber analysis, air permeability, water & oil repellent test, fine dust test, single fiber strength test, acid & alkali test and geotextile ...