| Stress factor | Conditions |
| Heat | 60˚C |
| Humidity | 75% RH or greater |
| Acid | 0.1 N HCl |
| Base | 0.1 N NaOH |
| Oxidative | 3% H2O2 |
| Photolytic | Metal halide, Hg Xe lamp, or UV-B/fluorescent |
| Metal ions (optional) | 0.05 M Fe2+ or Cu2+ |