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    Chemicals and nutrient media  > Indicators  > Test sticks  > Ozone test sticks
    Indikatorpapīrs-ozons
    Ozone test sticks

    Simple test for orientation analysis of the OZONE-content in the air. Test sticks should be placed in a wind-sheltered area and compared to a scale after 10 minutes.Analysis  O3
    Scale graduation  <90 / 90-150 / 150-210 / >210 µg/m3
    Colour change  from white to brown


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