Degree | CYTOTOXICITY | DESCRIPTION OF THE OF CYTOTOXICITY AREA |
0 | Absent | Absence of decolorization around or under the sample |
1 | Slight | Decolorization limited to the area under the sample |
2 | Mild | The size of the decolorized area from the sample is less than 0.45 cm |
3 | Moderate | The size of the decolorized area from the sample is between 0.45 cm and 1.0 cm |
4 | Severe | The size of the decolorized area from the sample is greater than 1.0 cm, but does not involve the entire plate |