Ozone Test Paper, Pack of 12 auspowers_batchsix Weight : 11g

Weight : 11g

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Ozone Test Paper, Pack of 12 auspowers_batchsix Weight : 11gOzone Test Paper, Pack of 12 Quick and easy to use. Suitable for indoor and outdoor testing. Economical pricing for classroom labs and science projects Analyze these strips after only 10 minutes of exposure. Simply compare the stick's color with the color chart on the container for semi quantitative results ranging from less than 90 to > 210 g m3 O2. An ozone content of 180 g m3 is considered a critical value above which sensitive persons should avoid