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HI98121 COMBO pH/ORP/°C-Tester, waterproof
1 × ฿11,770.00 -
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HI717 Checker HC ® - Phosphate, HR
1 × ฿3,103.00
Subtotal: ฿14,873.00
Reagents for the photometric determination of nitrate in the range of up to 30.0 mg / L. Cadmium reduction method.
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Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
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The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 764 Checker®HC, press the button and read the results. It’s that easy.
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm