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

      $144.77
      Ethyl Alcohol Standard, 14% (v/v) - R2919140-500ASize:500 mL Poly naturalCAS Number:7732-18-5,64-17-5

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

      $99.77
      Ethyl Alcohol Standard, 14% (v/v) - R2919140-4ASize:4 L Poly naturalShelf Life: 24 monthsCAS Number:7732-18-5,64-17-5

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

      $77.66
      Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-100Size:100 mL Glass amberCAS Number:7732-18-5,7647-01-0,16921-30-5,7791-13-1

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

      $141.33
      Standard Dithizone Solution, 10 mg/L in Chloroform USP <251> for Lead - R2631000-500CSize:500 mL Glass amberCAS Number:67-66-3,60-10-6

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

      $49.34
      Conductivity Standard, 200,000 µS/cm (200 mS/cm) at 25°C - 2249.20-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $70.98
      Nitrate Nitrogen Standard, 10 ppm N (44.27 ppm NO??) - 5456-16Size:500 mL Poly naturalCAS Number:7732-18-5,67-66-3,7757-79-1

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

      $39.78
      Ammonium Standard Stock Solution (250 ppm NH?) EP Standard Solution - 691-4Size:120 mL Poly naturalCAS Number:7732-18-5,12125-02-9

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

      $76.96
      Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 50 - 2230.050-100Size:100 mL Glass amberCAS Number:7732-18-5,7647-01-0,7791-13-1,16921-30-5

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

      $149.40
      Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-8Size:250 mL Glass amberCAS Number:7732-18-5,7647-01-0,16921-30-5,7791-13-1

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

      $93.80
      Conductivity Standard, 229 µS/cm at 25°C - R2236330-500ASize:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $240.46
      Conductivity Standard, 84 µS/cm at 25°C - 2236.21-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $41.00
      Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $40.97
      Conductivity Standard, 2060 µS/cm at 25°C (1030 ppm TDS as NaCl) - 2244.20-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $63.24
      Conductivity Standard, 445 µS/cm at 25°C (213 ppm TDS as NaCl) - 2240.45-32Size:1 L Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $125.25
      Conductivity Standard, 30,000 µS/cm (30 mS/cm) at 25°C - 2236.88-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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

      $132.52
      Conductivity Standard, 40,000 µS/cm (40 mS/cm) at 25°C - 2236.75-16Size:500 mL Poly naturalCAS Number:7732-18-5,7647-14-5

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