mechanical properties	Điều kiện kiểm tra	Phương pháp kiểm tra	LX MMA KOREA/HI855H
Impact strength of cantilever beam gap	Izod　Notched	ASTM D-256	6.0 kg·cm/cm
Bending modulus		ASTM D-785	21.000 kg/cm
bending strength		ASTM D-790	800 kg/cm
Elongation at Break		ASTM D-638	40 %
tensile strength		ASTM D-638	450 kg/cm
Rockwell hardness		ASTM D-785	55 M-scale

thermal performance	Điều kiện kiểm tra	Phương pháp kiểm tra	LX MMA KOREA/HI855H
specific heat			0.35 cal/g/°C
Vicat softening temperature	1kg	ASTM D-1525	90 °C
melt mass-flow rate	230°C,3.8kg	ASTM D-1238	4.0 g/10min
Shrinkage rate		ASTM D995-51	0.4-0.8 %
Hot deformation temperature	18.56kg	ASTM D-648	88 °C
UL flame retardant rating	1/8",1/16"	UL 94	HB
Coefficient of sponge expansion		ASTM D-696	6×10 cm/cm/°C
heat conduction		ASTM D-177	5×10 cal/seccm·°C/cm

Physical properties	Điều kiện kiểm tra	Phương pháp kiểm tra	LX MMA KOREA/HI855H
transparency	3.2mm	ASTM D-1003	90 %
reflectivity		ASTM D-542	1.49
Water absorption rate	24h	ASTM D-570	0.4 %

Electrical performance	Điều kiện kiểm tra	Phương pháp kiểm tra	LX MMA KOREA/HI855H
Dielectric constant	60Hz	ASTM D-150	3.9
Dissipation factor	60Hz	ASTM D-150	0.04
Dielectric strength	4KV/S	ASTM D-149	15 KV/mm
Volume resistivity		ASTM D-257	>15 Ω.m