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    Standards-Others
    Whether you're determining unknown substances or calibrating analytical instruments, you will need certified laboratory standard solutions. Here at Lab Pro, our standards aim to increase lab efficiency and help users achieve more accurate results. Browse through our standards selection ranging from water-soluble ammonium sulfamate to phenacetin powder. If you need laboratory standards in bulk, don't hesitate to reach us at 888-4-LABPRO (888-452-2776). We also offer next-day service in California and same-day service for will-calls.

    Ethyl Alcohol Standard, 14% (v/v) - R2919140-500A

    $144.77

    Ethyl Alcohol Standard, 14% (v/v), 4L - R2919140-4A

    $99.77

    Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-100

    $77.66

    Standard Dithizone Solution, 10 mg/L in Chloroform USP <251> for Lead - R2631000-500C

    $141.33

    Conductivity Standard, 200,000 µS/cm (200 mS/cm) at 25°C - 2249.20-16

    $49.34

    Nitrate Nitrogen Standard, 10 ppm N (44.27 ppm NO??) - 5456-16

    $70.98

    Ammonium Standard Stock Solution (250 ppm NH?) EP Standard Solution - 691-4

    $39.78

    Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 50 - 2230.050-100

    $76.96

    Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-8

    $149.40

    Conductivity Standard, 229 µS/cm at 25°C - R2236330-500A

    $93.80

    Conductivity Standard, 84 µS/cm at 25°C - 2236.21-16

    $240.46

    Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-16

    $41.00

    Conductivity Standard, 2060 µS/cm at 25°C (1030 ppm TDS as NaCl) - 2244.20-16

    $40.97

    Conductivity Standard, 445 µS/cm at 25°C (213 ppm TDS as NaCl) - 2240.45-32

    $63.24

    Conductivity Standard, 30,000 µS/cm (30 mS/cm) at 25°C - 2236.88-16

    $125.25

    Conductivity Standard, 40,000 µS/cm (40 mS/cm) at 25°C - 2236.75-16

    $132.52

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