SpecCheck Gel secondary standard Kit, LR chlorine, DPD, 0-2.0 mg/L Cl2

Product #: 2635300
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Solid, ready for use Gel-Standards for instrument verification in the lab and in the field. NIST traceable.
Ready for use SpecCheck Secondary Standards Kits include four 10 mL (1 inch) sealed glass cells with a blank and three different standards within the typical testing range, instructions, plastic case and Certificate of Analysis.
SpecCheck Standards are computer-formulated and have a two-year shelf life from date of manufacture.