English 
Spanish 
German 
ChemWipes
ChemWipes Surface Contamination Testing
ChemWipes are surface wipes. Detect and measure toxic chemicals on surfaces.
How to use the ChemWipe? Simply wipe the surface with the ChemWipe, then compare the color formed on the wipe with the color chart in the comparator.
Because of the uniform color change on the wipe, you can know the amount of chemical on the surface using the color comparator.
(Pack of 5)Cadmium II ChemWipe for Surface Contamination Testing
$75.50
Cadmium II Color Comparator
$52.10
(Pack of 5)Cobaltl II Compounds ChemWipe
$76.30
(Pack of 5)Mercury & Mercury II ChemWipe for Surface Contamination Testing
$75.50
(Pack of 5)Nickel II Compounds ChemWipe for Surface Contamination Testing
$76.30
The colors on the color chart match certain amounts of target substance. By matching the color on the wipe with one color in the chart, you can determine how much substance collected on the wipe. If you know the wiped surface area (cm2 or in2), you can know the average concentration of the substance on the surface.
Beside the color wheel, the color comparator has gray scale wheel to help improve the color matching process.
Available ChemWipes
- Aromatic diisocyanates., toluene 2,4 diisocyanate (2,4 TDI), toluene 2,6-diisocyanate (2,6 TDI) and 4,4′ methylene diphenyl diisocyanate (MDI).
- Mercury and mercury II compounds
- Nickel II compounds..
ChemWipes Surface Contamination Testing
| a | Weight: | 0.5g (0.02oz) |
| b | Dimensions: | 8.5mm (0.33in), diameter: 32mm (1¼” in) |
| c | Temperature range: | 4oC to 60oC (39oF to 140oF) |
| d | Humidity range: | 5% RH to 95%RH |
| e | Minimum detectable limit: | Mercury: 2μg Aromatic diisocyanates: 4mg in 5 minutes or approximately 0.03μg (30ηg) in 30 minutes |
| f | Cross interferences | Mercury: Acids and strong oxidizers affect the function of the Mercury ChemWipe. No other is known. Aromatic diisocyanates: None known |
| g | Detection range (color comparator): | Mercury: 2μg to 250μg Aromatic diisocyanates: 2 to 500μg |
| h | Comparator increments: | Mercury: 2, 5, 10, 25, 50, 100, 250 Aromatic diisocyanates: 2, 4, 6, 10, 15, 25, 50, 100, 300, 500 |
| i | Color change: | Mercury: Off white to peach Aromatic diisocyanates: Off white to red |
| j | Color stability: | 6 months |
| k | Storage temperature: | 4oC to 25oC, (39oF to 77oF) |
| l | Shelf life: | 2 years |