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

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

• Y022L 150ppm Sodium Ion Standard Solution
• 14-ml x 6 bottles
• For Cardy C-122 and LAQUAtwin B-722, Na-11

• 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

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

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

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

1413 µS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles are economical 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

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

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

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

• Y051L 150ppm Calcium Ion Standard Solution
• 14-ml x 6 bottles
• For LAQUAtwin B-751 and Ca-11

• 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

Calibration and maintenance set with technical buffer solution for gel electrodes, 3 bottles with 1 l each: pH 4.01/ 7.00/ 10.01 Trace, 2 bottles with 250 ml 3 mol/l KCl solution.

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