What does a positive indication look like?

The D4D PenTest wipes only require a sample of drug residue greater than 64µg per mm² to provide a positive reaction.

64µg per mm² is a minute trace and well below the Government recommended cleanup guidelines.

Each D4D kit contains 2 testing papers. It is recommended that one testing paper be used to take a sample, and the other used as a ‘control’ to compare results. Due to subtle variances in the test paper colour, this will ensure that any colour changes are quite obvious.

Samples should be taken from as greater surface area possible for the best results.

Once the activated agent has been applied from the D4D PenTest ampule, a colour reaction will be evident within 90 seconds if drug residue is present.

Compare the colour reaction to the control. If a colour variance is observed (not including dust) check against the colour charts on the instruction sheet for matched colours.

It is normal to get multiple colours on single tests, with the most common colours being RED (cannabis), ORANGE (methamphetamine) and YELLOW (amphetamine).

It is normal to have anything from dirty dusty orange to bright orange to indicate a reaction to methamphetamine. Any colour variation should be considered a positive reaction.