PHYSICAL AND MECHANICAL PROPERTIES OF PLAIN & PRELAMINATED PARTICLE BOARDS Sr.No Properties Unit IS 12406 IS 14587 Grade - II Grade - I Grade - II Grade - I 1 DENSITY Kg/m3 600-900 600-900 600-900 600-900 2 DENSITY VARIATION % ±10 ±10 ±10 ±10 3 MOISTURE CONTENT % 5 to 10 5 to 10 5 to 10 5 to 10 4 WATER ABSORPTION % 2 Hours 9 6 9 6 24 Hours 18 12 Up to and including 6mm thick 45 30 7 to 12 mm thick 30 20 13 to 19 mm thick 20 13 20 mm thick and above 18 12 5 THICKNESS SWELLING, 2 HRS % 7 4 6 THICKNESS SWELLING, 24Hours soaking % Thickness 7 4 Length 0.4 0.3 Width 0.4 0.3 7 SWELLING DUE TO SURFACE ABSORPTION % 5 4 8 MODULUS OF RUPTURE N/mm2 Up to 20mm thickness 28 28 28 28 Above 20mm thickness 25 25 25 25 9 TENSILE STRENGTH PERPENDICULAR TO SURFACE N/mm2 Up to 20mm thickness 0.8 0.9 0.8 0.9 Above 20mm thickness 0.7 0.8 0.7 0.8 10 TENSILE STRENGTH PERPENDICULAR TO SURFACE N/mm2 a) After cyclic test 0.45 0.45 b) Accelerated water resistance test 0.3 0.3 11 SCREW withdrawal strength N Face 1500 1500 1500 1500 Edge 1250 1250 1250 1250 12 ABRATION RESISTANCE Revolution Type I 1000 1000 Type II 450 450 Type III 250 250 Type IV 75 75 13 MODULUS OF ELASTICITY (MOE) N/mm2 Up to 20mm thick 2800 2800 2800 2800 Above 20mm thick 2500 2500 2500 2500

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