Test items			Index
Isocyanate                ％			≥99.0
Saponifiable chlorine     ％			≤0.01
Chlorine                  ％			≤0.04
Crystallizing point℃     ％			5.0-6.5
Chromaticity (Hazen)			≤50
Density (20℃)g/cm3			1.21-1.23
Refractive index  n020			1.564-1.568
Acidity (HCI)			≤0.04
2.4-TDI Structure isomer			≤64.0
2.6-TDI  Structure isomer			≤36.0
Packing:Net weight is 250kg iron drum.