LLNA Potency Classification
| LLNA EC3 (μg/cm2) | Potency Classification |
|---|---|
| <100 | Strong |
| 100–1,000 | Moderate |
| 1,000–10,000 | Weak |
| >10,000 | Extremely Weak |
| NCa | Nonsensitizer |
EC3, concentration expected to give a 3-fold stimulation of lymph node cell proliferation; LLNA, local lymph node assay; NC, not calculated.
↵a No positive response is obtained at any concentration tested; therefore, an EC3 value cannot be calculated. (Table from Gerberick et al. [21]).