Pack Size: box of 12 strips
Ozone is a colourless toxic gas. An ozone content of 180 micrograms/ m3 is considered as critical value above which sensitive persons should avoid stronger physical exertion.
gradation of scale: less than 90, 90 -150, 150 - 210, greater than 210 micrograms/m 3 ozone
Method of application: Place a test stick in the open air, protected from wind. If necessary, fix the test stick with a piece of adhesive tape. After 10 minutes compare the test field with the colour scale on the container. Under standard conditions (101300 Pa, 20°C) 90 micrograms per meter cube ---> 0,0451 ppm, 150 micrograms per meter cube---> 0,0752 ppm, 210 micrograms per meter cube ---> 0,105 ppm