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Aqua Solutions Fluoride Standard 10.0 ppm Aqueous Solution (500ML)
Fluoride Standard 10.0 ppm Aqueous Solution (500ML)
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SPEX CERTIPREP LLC 3P Total Residual Chlorine Concentrate CRM 1.50 mg/L, 24/pk
(NSI by Zeptometrix) Convenient and easy to use. Dilute 1mL from an ampule to 1000mL to reach certified value. Always the same, lot to lot, so your dilution process remains the same minimizing errors in your lab.
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