| Code | Display | Definition |
| AMB |
Ambient Temperature |
Keep at ambient temperature, 22 +/- 2C |
| C37 |
Body Temperature |
Critical to keep at body temperature 36-38C |
| CAMB |
Critical Ambient temperature |
Critical ambient - must not be refrigerated or frozen. |
| CATM |
Protect from Air |
Critical. Do not expose to atmosphere. Do not uncap. |
| CFRZ |
Critical frozen |
Critical frozen. Specimen must not be allowed to thaw until immediately prior to testing. |
| CREF |
Critical refrigerated temperature |
Critical refrigerated - must not be allowed to freeze or warm until imediately prior to testing. |
| DFRZ |
Deep Frozen |
Deep Frozen -16 to -20C. |
| DRY |
dry |
Keep in a dry environment |
| FRZ |
frozen |
Keep frozen below 0 ?C |
| MTLF |
Metal Free |
Container is free of heavy metals, including lead. |
| NTR |
nitrogen |
Keep in liquid nitrogen |
| PRTL |
Protect from Light |
Protect from light (eg. Wrap in aluminum foil). |
| PSA |
do not shake |
Do not shake |
| PSO |
no shock |
Protect against shock |
| REF |
Refrigerated temperature |
Keep at refrigerated temperature:4-8C Accidental warming or freezing is of little consequence. |
| SBU |
Shake before use |
Shake thoroughly before using |
| UFRZ |
Ultra frozen |
Ultra cold frozen -75 to -85C. Ultra cold freezer is typically at temperature of dry ice. |
| UPR |
upright |
Keep upright, do not turn upside down |