| variety | grade | roughness rate (%) | whole milled rice rate (%) | impurities (%) | Moisture (%) | color and odor |
| early hsien rice, late hsien rice and indica glutinous rice | first grade | ≥79 | ≥50 | ≤1 | ≤13.5 | normal |
| second grade | ≥77 | ≥50 | ≤1 | ≤13.5 | normal | |
| third grade | ≥75 | ≥50 | ≤1 | ≤13.5 | normal | |
| fourth grade | ≥73 | ≥50 | ≤1 | ≤13.5 | normal | |
| fifth grade | ≥71 | ≥50 | ≤1 | ≤13.5 | normal | |
| substandard | <71 | ― | ― | ― | ― | |
| japonica rice and round grain glutinous rice | first grade | ≥81 | ≥60 | ≤1 | ≤14.5 | normal |
| second grade | ≥79 | ≥60 | ≤1 | ≤14.5 | normal | |
| third grade | ≥77 | ≥60 | ≤1 | ≤14.5 | normal | |
| fourth grade | ≥75 | ≥60 | ≤1 | ≤14.5 | normal | |
| fifth grade | ≥73 | ≥60 | ≤1 | ≤14.5 | normal | |
| substandard | <73 | ― | ― | ― | ― |