accumet™ Gas-Sensing Combination ISEs Available on GSA/VA Contract for Federal Government customers only.

For ammonia and carbon dioxide analyses; tough, chemical-resistant body; permanently bonded membrane/cap assembly—no difficult user assembly required

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Catalog No. 13-620-508

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    Applications Determines Ammonia and Ammonium ion concentration in sewage effluent, boiler water, industrial wastes, stack gases, food, fertilizers
    Connector Types U.S. Standard/Pin
    Diameter (English) Body 0.5 in.
    Diameter (Metric) Body 13mm
    Filling Solution Type Noncrystallizing - NH4Cl
    Length (English) 4.01 in.
    Length (Metric) 102mm
    Material Epoxy Body
    Operating Range (Metric) 0.009 to 1700ppm
    Temperature (English) Operating 32° to 122°F
    Temperature (Metric) Operating 0° to 50°C
    Certifications/Compliance ASTM, EPA
    pH Range 13
    Interferences Volatile Amines, Metal cations that complex Ammonia
    Resistance <300megohm
    Response Time <30 sec.
    Temperature (Metric) Range 0 to 50°C

    Preassembled, pretested membrane/cap unit

    • Assures optimum membrane tension and alignment, with no-leak operation
    • Membrane is much less susceptible to surfactant deterioration: use it for extended periods in more varied solution types—wastewater samples, process streams
    • Noncrystallizing fill solution won't impede performance or cause membrane rupture
    • With 39 in. (1m) lead


    • Tough, chemical-resistant body
    • Bonded membrane/cap assembly
    • Continuous electrical shielding and insulation of internal elements, cable and connectors
    • Extremely stable, reproducible readings with a minimum of electrical noise
    • Lower detection limits than conventional ISEs
    • Rapid response time that lowers cost per test
    • Individually tested, serialized to meet GLP requirements, and backed by the Fisher Scientific™ Technical Applications staff

    Ammonia Combination ISE

    • Determines ammonia and ammonium ion concentration in diverse samples
    • Applications include sewage effluent, boiler water, industrial wastes, stack gases, food, fertilizers
    • Measurements are unaffected by sample color, turbidity or suspended solids
    • Gases such as CO2, SO2 and H2S do not interfere
    • Method has ASTM and EPA approval
    Carbon Dioxide Combination ISE
    • Measures carbon dioxide, carbonate and bicarbonate
    • Applications include carbonated beverages, wines, groundwater, seawater

  • Description & Specifications
  • Accessories

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