Dimensions: 1932 x 2587 px | 16.4 x 21.9 cm | 6.4 x 8.6 inches | 300dpi Date taken: 1970 More information: This image could have imperfections as its either historical or reportage.
Alcohol in the breath reacts with the potassium dichromate, causing the solution to turn green
In addition, protection zones of 15 metres will be created around the entrances to public buildings, hospitals, schools, universities, libraries, museums, sports facilities, cultural centres and childrens playgrounds
Dentures : Dentures and other dental work can trap alcohol-containing substances, contributing to inaccurate test results
Instead of literally chewing on dipping tobacco, as is the case with chewing tobacco, a small clump of dip is "pinched" out of its container and placed between the lower or upper lip and gums