Thermo Scientific™ Orion™ Fluoride Electrodes Available on GSA/VA Contract for Federal Government customers only.

Quickly, simply, accurately and economically measure free fluoride ions in aqueous solutions with the combination Thermo Scientific™ Orion™ Fluoride Electrodes.

Manufacturer: Thermo Scientific™ 9409BN

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Catalog No. 13-641-942

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Limited warranty period: Subject to all warranty requirements and exclusions set out in our Terms and Conditions of Sale, this product is warranted from the date we ship the product and for ninety (90) days thereafter. Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.


    Length (English) 4.33 in.
    Length (English) Cable 39 in.
    Length (Metric) 110mm
    Length (Metric) Cable 1m
    Material Epoxy
    Temperature (English) Operating Continous: 32° to 176°F; Intermittent: 32° to 212°F
    Temperature (Metric) Operating Continuous: 0° to 80°C; Intermittent: 0 to100°C
    Connector Types BNC
    Item Description Fluoride half-cell w/ BNC connector
    Certifications/Compliance Approved by ASTM method and approval number is ASTM D 1179
    Description Solid State Half-Cell
    Diameter (English) Body 0.51 in.
    Diameter (Metric) Body 13mm
    Filling Solution Type 900061 (9609BNWP and 960900); 900001 with 900100 single junction reference electrode (9409BN, 9409SC, and 940900)
    Junction Free-flowing Sure-Flow junction assures stable, drift-free potentials

    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

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