ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution), Ricca Chemical Company

: Ricca Chemical

ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution), Ricca Chemical Company

: Ricca Chemical

RICCA Chemicals Ready-to-Use Titrants and Standards

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VWR®, Griffin Beakers, Polypropylene

: VWR International

Phosphate Buffer, pH 7.2, for Biochemical Oxygen Demand (BOD) Testing, Ricca Chemical Company

: Ricca Chemical

Orion™ pH Electrode Filling Solution, Thermo Scientific

: Thermo Fisher Scientific

Conductivity Solutions, YSI

: YSI

Total Ionic Strength Adjustment Buffer Solution (TISAB), VWR Chemicals BDH®

: VWR International

Vinyl Coat Aprons, Ansell

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Potassium chloride saturated aqueous solution, VWR Chemicals BDH®

: VWR International

Potassium iodide ≥99.0%, granular, GR ACS, Supelco®

: MilliporeSigma

Polystyrene and Polypropylene Test Tubes, 17×100 mm, Globe Scientific

: Globe Scientific

Conductivity/TDS Standards, NaCl Solutions at 25 °C, 2 - 70 mS/cm, Ricca Chemical Company

: Ricca Chemical

Whatman™ 1PS Phase Separator Papers

: Cytiva

Conductivity Standard, 20 µS/cm at 25°C, Ricca Chemical Company

: Ricca Chemical

ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution), Ricca Chemical Company

: Ricca Chemical

Total Chlorine Accuracy Check Wastewater Standards, NSI

: SPEX CERTIPREP LLC

Nalgene® Wide Mouth Bottles, HDPE, Bulk Pack, Thermo Scientific

: Thermo Fisher Scientific

Dairy Bottles, High Density Polyethylene, Environmental Express®

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Support Rings, Cast Iron, Humboldt Manufacturing

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Sodium hydroxide 0.250 N (N/4)

: Ricca Chemical

SwifTest™ DPD Chlorine Testing Systems

: Hach