For anyone involved in the shipping, storage, or handling of humidity sensitive products, understanding the reading of a Humidity Indicator Card (HIC) is fundamental. These cards are designed to offer an immediate visual indication of relative humidity levels.
When observing a HIC, the color-changing dots are your guide:
|
Color |
Relative Humidity Level (%) |
Interpretation |
|
Blue |
|
Safe, Low Humidity |
|
Lavender |
|
Warning, Suffering Humidity Detected |
|
Pink |
|
Warning, High Humidity Detected |
A blue dot suggests that the internal environment remains within safe humidity levels. In contrast, a shift to pink indicates that the relative humidity has increased, possibly reaching levels that might harm the contained products.
These cards are not just a convenience; they're a necessity for ensuring that products remain undamaged during transit or storage. Correct interpretation is thus essential for product safety and integrity.
Industry Standard: The military has specific standards for humidity indicators. According to MIL-I-8835, proper card reading interpretation is crucial, ensuring products' safe storage.
Source Link: MIL Standards
