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.

5.0 mS/cm KCl Calibration Solution packed in 480 ml durable plastic bottles whereeconomical 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

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

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

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

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

• Y043 2000ppm Nitrate Ion Standard Solution
• 14-ml x 6 bottles
• For Cardy C-141, Twin B-343, and LAQUAtwin B-743, NO3-11

pH electrode Protein Cleaning Solution packed in 480 ml durable plastic bottles whereeconomical and convenient for laboratory use.

• Y041 5000ppm Nitrate Ion Standard Solution
• 14-ml x 6 bottles
• For Twin B-341 and LAQUAtwin B-741, NO3-11C

1413 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

• 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

100 µS/cm KCl Calibration 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.