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Thermo Scientific™ Orion™ Fluoride Electrodes

Quickly, simply, accurately and economically measure free fluoride ions in aqueous solutions with these fluoride electrodes.

Supplier:  Thermo Scientific™ ORI9609BNWP

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Catalog No. 13-642-265



Measure free fluoride ions in aqueous solutions quickly, simply, accurately and economically with the Thermo Scientific™ Orion™ Fluoride Electrodes. The Thermo Scientific™ Sure-Flow™ junction allows easy cleaning and is easy to use in tough samples.The half-cell electrode requires a separate reference electrode. We recommend the reference electrode 900100 to be used with the half-cell electrodes 9409BN and 9409SC


The measurement of fluoride in drinking water using an ion selective electrode is an approved ASTM method: ASTM D 1179 A separate reference electrode is unnecessary with the combination fluoride electrode, making it convenient to use with small sample volumes.

  • Free-flowing Sure-Flow junction assures stable, drift-free potentials.
  • When conventional electrode junctions clog, the Sure-Flow junction can be opened and flushed clean simply by pressing the cap.
  • Fluoride Half-Cell Electrode used in conjunction with the Orion 900100 Single Junction Reference electrode offers the benefits of the Sure-Flow junction design:
    • Calibration standards catalog number: 940906 — 0.1 M NaF; 940907 — 100ppm F-; 040906 — 1ppm F- with TISAB II; 040907 — 2ppm F- with TISAB II; 940908 — 10 ppm F- with TISAB II
    • Required ISA catalog number: 940909 — TISAB II; 940911 — TISAB III


Waterproof BNC
0.51 in.
900061 (9609BNWP and 960900); 900001 with 900100 single junction reference electrode (9409BN, 9409SC, and 940900)
4.33 in.
Model 9609BNWP; Fluoride combination
ISE Meters
Combination Ion Selective Electrode
Ionplus Sure-Flow Solid State Combination
Free-flowing Sure-Flow junction assures stable, drift-free potentials
39 in.
Continous: 32° to 176°F; Intermittent: 32° to 212°F
Approved by ASTM method and approval number is ASTM D 1179
Continuous: 0° to 80°C; Intermittent: 0 to100°C


Product Certifications


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