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น้ำยามาตรฐานสอบเทียบ
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HI755 Checker HC ® - MARINE Alkalinity (dHK)
1 × ฿3,104.07
Subtotal: ฿5,565.07
Reagents for HI 701 (Free Chlorine), 25 Tests
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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.
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