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Item	Inspection value	Standard
Apparent density	0.96-1.12g/cm3	JC/T 646-2006
Fire rating	A1	GB 8624
Bending strength	8-15Mpa	JC/T 646-2006
Impact strength	2.0-3.6kJ/m2	JC/T 646-2006
Nail-holding power	25-35 N/mm	JC 688-2006
Absorption moisture	≤8%	GB/T7019
Dry shrinkage rate	≤0.3%	GB/T 7019-2014
Antiswelling effection	≤0.6%	GB/T 7019-2014
Chloride Ion content	≤10%
Can be leaching out chloride ion content	≤5%
Anti reversion	No water,Don’t get damp
Formaldehyde emission	≤0.12mg/m3	GB 18580
Radionulide limited	Radium-226,Thorium -232,Potassium -40	GB 6566
Size	122024403-20mm