• Model number: Calibration solution pH9.00
• pH9.00 (480mL bottle)
• Calibration solution
• Calibration solution BT is high purity type that has been pre-formulated.
• Calibration solution BX is tablet type to use is dissolved in pure water or distilled water 30ml.
• Calibration solution BS is high purity type went into 20ml pack of pouch type
