Test instruments:

1. Shape of particle: JEM-100CX, Japan transmission electron microscope D/max-YA, Japan rotating target X ray test set
2. Size distribution: JL-1166 type Chendu laser size distribution calcimeter
3. Specific surface area: JEMINI type USA surface area calcimeter
4. Whiteness: DN-B type Hangzhou whiteness test set
5. Water content: SL69-02 type Shanghai moisture test set
6. PH: Foxboro type USA PH

Test method:

• Chemical trade standard of the People's Republic of China:HG/T2776-1996
• Hangzhou Advanced technological Chemical Co.,Ltd. Enterprise standard Q/HAC 01-2001
• Hangzhou Advanced technological Chemical Co.,Ltd.. Enterprise standard Q/HAC 02-2001
• Hangzhou Advanced technological Chemical Co.,Ltd. Enterprise standard Q/HAC 03-2001
• Hangzhou Advanced technological Chemical Co.,Ltd. Enterprise standard Q/HAC 04-2002