cobalt free humidity indicator card
USD $0.001 - $0.08 /Bag
Min.Order:10000 Bags
Rushan Wufeng Silica Gel Co., Ltd.
cobalt free humidity indicator card
Specifications
humidity indicator card
1.Lead-free RoHS compliant
2.OEM allowed
3.High quality
lor change
Introductions
Humidity indicator card (also know as HIC, humidity indicator card, moisture indicator ) is a card on which a moisture-sensitive chemical is impregnated such that it will change color when the indicated relative humidity is exceeded. This item is an inexpensive way to quantify relative humidity levels inside sealed packaging. They are available in many configurations and used in many applications, such as PCB, IC, LED, especially military and semiconductor
About how the cards work?
There are 10%,20%, 30%, 40%,50%,60% number on each card, when the humidity arrived
at the number, the dot will change colore. Then you willknow thehumidity in the air.
Physical Character:
ST. | Item | Index |
1 | Abrasion Rate | ≤4 |
2 | Bulk Density | ≥750g/l |
3 | Specufic Reaistance | ≥3000 |
4 | PH Value | 5.6-8 |
5 | Color | transparebcy Crystal |
6 | Hydroscopicity | RH=20% ≥10% RH=40% ≥20% RH=80% ≥34% |
7 | Environment Conservation | Pb≤2ppm Cd≤2ppm Hg≤2ppm CrVi≤2ppm PBBs≤2ppm PBDEs≤2ppm (ppm=mg/k) |
Application:
1.Electronics
2.nstruments
3.semiconductors
4.some other products.
Humidity Indicator Card Type:
1, Cobalt humidity card
Contain cobalt chloride, from blue to pink, is a traditional humidity indicator card
2, Cobalt-free humidity card
Do not contain cobalt dichloride, is an environmentally friendly product, with brown becomes blue, and yellow to blue, blue to red three kinds
Note: The moisture content, packing and size can be adjusted according to customers different requirements.