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HI721 Checker HC ® - Iron
1 × ฿3,103.00
Subtotal: ฿3,103.00
Reagents for photometric determination of pH in the range of 9.5 to 5.8. Phenol red method.
| Weight | 0.000 kg |
|---|
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The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.