Project quality index test method Appearance of uniform color, no lumps visual --- color according to customer requirements Density (g / cm3) 1.4-1.6 gb / t 4472 The particle size distribution ( % ) 150 sieve powder , ¨¹3 gb / t 6554 250 sieve powder , ¨¹0.2 gb / t 6554 Volatile matter content (%) , ¨¹0.6 gb / t 6554 Test item specifications test methods Adhesion ( grade ) , ¨¹2 gb / t23257-2009 appendix c 48h 65 , cathodic disbondment (mm) , ¨¹8 gb / t23257-2009 appendix d 30d 65 , cathodic disbondment (mm) , ¨¹15 gb / t23257-2009 appendix d Bending resistance (-20 , ) no crack gb / t23257-2009 appendix e Implementation of the standards : gb / t 23257-2009 Applications: oil, gas and other pipeline corrosion coating 2.03 meters wide and 1.23 meters high 1.02 meters long ton