Shenzhen Cobalt Free Humidity Test Paper
Shenzhen AKS Technology Co., Ltd.
Guangdong, China
Last Login Date:
Jul 10, 2025
Business Type:
Manufacturer/Factory, Trading Company
Product Description
Company Info
Basic Info.
Product Description
Product : 10%,20%,30%,40%,50%,60%,70%,80%,90% humidity indicator card
Dots can be customzied!
Introduction:
(1) This is a cobalt free humidity indicator which is widely used in electronic field, storage, military supplies,
semiconductor and electronic circuit board (PCB)computer information equipment industry, metal material, composite material, SMD LED, and IC etc.
(2) It accords with the standard of REACH
(3) Advantages:
convenient to use;
easy to observe;
Lead-free RoHS compliant;
high sensitivity;
low-cost;
quickly determine humidity (when indication point turns to be purple which is between blue and pink, the number of indication point will be the environment humidity at present); effective moisture proof.
specification
| Indication point | relative humidity RH10%,20%,30%,40%,50%,60%,70%,80%,90% |
| Material | blotting paper |
| thinkness | 0.4mm |
| Dimension | 38mmx155mm(±2mm) |
| Printing | white paper, black font |
| Packing | 250pcs/can, 12cans/carton(carton size: L33xW22.5xH27.5cm) |
| G.M | 475g(250pcs)/can, 6kg/carton |
| Product standard | up to standard GJB 2494-95 (Mil-I-8835) |
| Color change | when humidity is over 5% of indicated value,it will be pink, if humidity is under 5% of indicated value, it will be blue. |
| Transition | Indication points are reversible,when the air is dry,blue ponits turn to be pink. When the cards with pink points are packed in the closed can with desiccant,4 hours later,blue will come back. |
| Shelf Life | Product can be kept for half a year from the date of manufacture in closed can. |
| Storage condition | Keep in dry area away from sunlight under normal temperature condition (10°C -40°C) |
| Matter need attention | The brown part can dissolve into water,please do not directly contact with the liquid water or metals. Please do not open the can for a long time,remember to cover the lid firmly.When the brown parts of the indication points are out of the black round range, please throw away! |
| RoHS | Do not contain lead, cadmium, chromium, polybrominated biphenyls (PBBs)and ether polybrominated biphenyls (PBBE). Up to RoHS standard. |
Detailed Images
