Scientific experts from the U.S. Centers for Disease Control and Prevention 
and the U.S. Food and Drug Administration helped to develop this poster.
2019
1
2
4 AIR DRY
RINSE
WASH
SANITIZE
3
2
MIN
1
GALLON
WATER
1
TABLESPOON
BLEACH
(6% STRENGTH)
CHLORINE 
TEST STRIP
1 TBSP
Posters are available for download at www.waterandhealth.org/resources/posters
10
ppm
50
ppm
100
ppm
200
ppm