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TESTING ITEM | ational Standard | Internal Standard | Testing Result |
TESTING ITEM | Premium | Premium | |
Appearance | White powder | White powder | White Powder |
BaSO4 Content ≥98% | 96.0 | 98.0 | 98.2 |
Moisture≤0.3% | 0.4 | 0.2 | 0.14 |
Water Soluble≤0.4% | 0.4 | 0.20 | 0.15 |
Iron(Fe),<0.005% | 0.005 | 0.0016 | 0.0008 |
Whiteness≥97 | 94.0 | 97.5 | 98.1 |
Oil Absorption/(g/100g) 10-30 | 10~30 | 10~20 | 15.4 |
PH value(100g/L suspension liquid) 6.5-9.0 | 6.5~9.1 | 6.5~8.0 | 7.3 |
Particle D50<3μm | 2.5 | 2 | 1.6 |
Electrical conductivity μs/cm | / | / | / |
Chloridion | No | No | 0 |