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น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม
1 × ฿1,444.50 -
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HI9812-5 Multiparameter pH/EC/TDS/°C - EC to1990 µS/cm
1 × ฿10,807.00
Subtotal: ฿12,251.50
Reagents for the photometric determination of zinc in the range of up to 3.00 mg / L. Zircon method.
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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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