19.4: To estimate the concentration of free chlorine in swimming-pool water or bleach using a comparator or colorimeter

19.4: To estimate the concentration of free chlorine in swimming-pool water or bleach using a comparator or colorimeter

Colorimeter

Mystrica Ltd
SC98000
19.4: To estimate the concentration of free chlorine in swimming-pool water or bleach using a comparator or colorimeter

DPD Tablets No.1

Tintometer Gmbh
ET511050BT
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