Complaint
| Item | Specifications | Typical Values | |||
| Narrow Pore Silica Gel ( A type) | |||||
| Superior class | First class | Qualified class | |||
| Absorption capacity | RH=20%, % ≥ | 8.0 | 7.0 | 6.0 | 11.2 |
| RH=50%, % ≥ | 20.0 | 19.0 | 18.0 | 29.2 | |
| RH=90%, % ≥ | 30.0 | 29.0 | 28.0 | 37.6 | |
| Loss on heating % ≤ | 2.0 | 4.0 | 6.0 | 1.0 | |
| PH value | 4-8 | -- | -- | 4 | |
| Specific resistance Ω .cm ≥ | 3000 | -- | -- | 5600 | |
| Content of SiO2 % ≥ | 98 | -- | -- | 98.5 | |
| Qualified ratio of Spherical granules % ≥ | 82 | -- | -- | 90 | |
| Size | Negotiation | 2-5mm | |||
| Bulk density g/L | Negotiation | 780 | |||
| Note: Qualified ratio of spherical granules is only applicable to fine - pored silica gel | |||||
