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Be aware that some solvents used in mixing DFO or Ninhydrin may damage polystyrene tweezers
For the presumptive identification of Methamphetamine and MDMA (Ecstacy)
or a clear result in Test A followed by no change in Test G
Continuous 12" Photo Scale Roll Best Seller Be aware that some solventsThis adhesive photo evidence scale measures millimeters on one edge and inches on the other. Each 2. 5cm (1") by 9. 1m (30) roll features a repeating pattern every 30. 5cm (12"). The adhesive is non permanent so that you can apply the scale and remove it without damaging the item. Alternating black bands throughout the scale provide better visualization in distance photography.
US$ 19.00
US$ 27.50
US$ 15.99