These humidity cards with indicating spots for 5-10-15% relative humidity (RH) are specifically designed for use with moisture barrier bags. Place them inside each bag to quickly inspect humidity levels.
These humidity cards with indicating spots for 5-10-15% relative humidity (RH) are specifically designed for use with moisture barrier bags. Place them inside each bag to quickly inspect humidity levels.
Humidity Indicator Cards (HICs) are printed with moisture sensitive spots which respond to various levels of humidity with a visible color change from blue to pink. The moisture sensitive spots are made of blotting paper impregnated with cobaltous chloride. The humidity inside dry packed barrier bags can be monitored by including an HIC inside. When the bag is opened, the card can be examined for proper dryness inside the bag.
Features
| Materials | Blotting paper impregnated with cobaltous chloride |
| Accuracy | Based on ambient temperature of 75deg;F (23.9°C) |
| Tolerance | Approx. 2.5% for each 10°F (-12.2°C) away from 75°F (23.9°C) |
| Materials | Blotting paper impregnated with cobaltous chloride |
| Accuracy | Based on ambient temperature of 75deg;F (23.9°C) |
| Tolerance | Approx. 2.5% for each 10°F (-12.2°C) away from 75°F (23.9°C) |
