• Y044 30ppm Nitrate Ion Standard Solution 
• 14-ml x 6 bottles
• For Twin B-342 and LAQUAtwin B-742, NO3-11S

12.88 mS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

• 514-50 5.0% NaCl Standard Solution
• 14-ml x 6 bottles
• For Cardy C-121 and LAQUAtwin B-721, Salt-11, and Salt-22

111.8 mS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

• 1413 µS/cm KCl Conductivity Sachets, box of 20 x 20 mL sachets are economical and convenient for laboratory use.
• Box of 20x20 ml sachets

• Y031H 2000ppm Potassium Ion Standard Solution 
• 14-ml x 6 bottles
• For Cardy 131 and LAQUAtwin B-731, K-11

5.0 mS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

• Y042 300ppm Nitrate Ion Standard Solution
• 14-ml x 6 bottles
• For Twin B-341, B-342 and LAQUAtwin B-741, B-742, NO3-11C, NO3-11S

2764 µS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles are economical and convenient for laboratory use.

• 2000ppm Sodium Ion (Na+) Standard Solution
• 14-ml x 6 bottles
• For Cardy C-122 and LAQUAtwin B-722, Na-11

100 µS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

pH Electrode Storage Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

10 µS/cm KCl Conductivity Sachets, box of 20 x 20 ml sachets are economical and convenient for laboratory use.

84 µS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles are economical and convenient for laboratory use.

• Y045 150ppm Nitrate Ion Standard Solution
• 14-ml x 6 bottles
• For Cardy C-141, Twin B-343, and LAQUAtwin B-743, NO3-11

• 500ml bottles
• Certificate of Analysis is available on request
• Air-tight bottles
• Ensure maximum performance of your electrode
• Microbial growth 
• Tamper-proof seals