H O W T O U S E O U R
T E S T S
The methods of testing are the same for both products with D4D being more sensitive.
Our product is designed to use over the largest surface area possible, giving you the best possible chance at achieving a readable colour reaction.
D4D includes a testing paper, control paper, test pen and colour chart.
How to Test
- Open the foil packaging. Take all of the contents out of the pouch. This includes Test pen, colour chart/instructions and two papers (one tester 1x control/field blank)
- Read instructions carefully before use
- Using one of the papers supplied, peel back the cover, the test paper should be used on no less than 1 m2 per wall per room, wipe in an upwards motion. For example (1m2 x 4 walls per room) Note:- If the surface of the test paper is starting to wear to the backing, soften your pressure on paper to wall.
- Repeat this step with multiple rooms if desired (or as test paper allows based on surfaces being tested) and then return through the room/s collecting residue from the dirtiest/dustiest areas i.e. above doors/window frames and extraction fans etc. Taking care not to fully coat paper with dirt or attracting oily residues.
- When ready to colour test, take the other paper (control paper ) & peel back the cover, taking care not to touch or contaminate. Hold the tube upright, & squeeze to break the inside ampule of the test pen at ‘1’ where indicated.
- Hold the cap with your finger and shake well for 5 seconds. Once mixed with the active ingredient, tip the pen back and remove the small pen tip while holding the end cap to expose the dripper located on the end cap.
You are now ready to test.
- Pointing the pen away from your body, drip 2 drips on the control paper, Drip the remaining drips in quick succession on the middle of the paper used for testing. let it dry (est.90 sec)
- Compare test to control and if a colour variance is observed in the test (not including dust) check against the colour chart/instructions. It is normal to get multiple colours on single tests. See picture examples below.
- Only colours similar to the colour chart should be considered as positive results. But it is normal to have anything from a dirty dusty orange to bright orange in that drug residue range.
- For each test a new test paper and control must be used.
- Once ampule is broken, the test should be used within 1 hour.
- Any positive colour reaction may take 90 seconds or slightly longer to fully develop, depending on the quantity and purity of the substance being tested.
- Used paper will gradually turn brownish as a result of oxidation.
- Discard test after use.
- Keep out of reach of children. In case of eye or skin contact, flush well with water.
D4D has a detection capability of 64ng/mm2 of testing paper. It can be difficult to extract residue from porous surfaces, effectively you need to attract the minimum 64ng/mm2 of test paper for D4D to achieve a colour reaction
Example Test Paper showing the potential presence of marijuana, amphetamine, and the potential presence of any of the following orange colouration triggers.