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น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม
1 × ฿1,498.00
Subtotal: ฿1,498.00
Reagent for the photometric determination of chromium VI in the range up to 1000 micrograms / L. Diphenylcarbohydrazid method.
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The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
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