Heroine Purity test - Dope or Nope

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Dope or Nope heroin purity test: a colour reaction as an indicationDope or Nope makes a range of small reagent tests, each aimed at a different substance. The packaging labels this one Heroine (Purity): you read the result from the colour the reagent takes on and from how quickly that colour appears, then compare it with the chart in the leaflet. The tests are brought to market in the Netherlands by Globalherbs B.V.The set-up is deliberately plain. The box holds an ampoule of liquid reagent,...