Horiba Conductivity Standard Solution Kit 4 × 250 mL

Horiba Conductivity Standard Solution Kit, 4 × 250 mL (84 µS / 1413 µS / 12.88 mS / 111.8 mS) – 503-S

The Horiba 503-S Conductivity Standard Solution Kit provides a complete set of ready-to-use conductivity calibration standards for accurate and reliable calibration of conductivity meters. Horiba formulates each solution to deliver stable and reproducible conductivity values, supporting precise measurement across low, medium, and high conductivity ranges.

This kit includes four 250 mL bottles of conductivity standard solutions covering a wide calibration spectrum:

• 84 µS/cm – for low conductivity calibration

• 1413 µS/cm – for general-purpose and routine calibration

• 12.88 mS/cm – for medium to high conductivity measurement

• 111.8 mS/cm – for high conductivity and concentrated solutions

Horiba designs these standards to simplify calibration procedures and reduce user error. Because the solutions come pre-formulated and ready to use, users can perform conductivity calibration quickly and consistently without dilution or preparation.

The 503-S kit suits laboratories, water treatment facilities, environmental monitoring teams, educational institutions, and industrial process control applications that require routine conductivity calibration with trusted reference solutions.

Key Features

• Conductivity standard solution kit with four calibration points

• Includes 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, and 111.8 mS/cm standards

• Ready-to-use solutions with no preparation required

• Supports calibration across low to high conductivity ranges

• Provides stable and reproducible reference values

• Suitable for laboratory, industrial, and field conductivity meters

• Supplied in 4 × 250 mL bottles for convenient routine use

Technical Specifications

• Product type: Conductivity standard solution kit

• Kit contents:

  • 250 mL – 84 µS/cm conductivity standard

  • 250 mL – 1413 µS/cm conductivity standard

  • 250 mL – 12.88 mS/cm conductivity standard

  • 250 mL – 111.8 mS/cm conductivity standard

• Model code: 503-S

• Formulation: Ready-to-use calibration standards

Applications

• Calibration of conductivity meters

• Routine instrument verification and quality control

• Water and wastewater conductivity analysis

• Environmental monitoring and research

• Industrial process and laboratory testing