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![sd2016_0312](http://d3e1m60ptf1oym.cloudfront.net/b0b2fade-157a-4385-9225-de7a43e44fe6/sd2016_0312_uxga.jpg)
![sd2016_0311](http://d3e1m60ptf1oym.cloudfront.net/073fde25-d68d-4ca9-a70d-fc8fe1bac5c7/sd2016_0311_uxga.jpg)
Author: Charlie Cooke
Photo size: 3.3 Mpixels (9.42 MB uncompressed) - 1955x1684 pixels (6.5x5.6 in / 16.6x14.3 cm at 300 ppi)
Photo keywords: 30 seconds, chemical tests, cutting agent, icing sugar, marquis test, Sam Drake, University of Derby
Published in: Chemical tests
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