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บีกเกอร์พลาสติก ขนาด 170 ml จำนวน 6 ชิ้น (HI740224)
1 × ฿3,210.00
Subtotal: ฿3,210.00
Calibration Standard for HI 701 Checker HC ®
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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.