pH 7.0 Buffer Calibration Solution 20mL

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HM Digital® pH 7.0 Buffer Calibration Solution (PH-P7) The HM Digital® PH-P7 is a high-quality pH 7.0 calibration buffer solution, made with premium-grade salts and deionised water . It offers high accuracy of ±0.02 at 25°C and is traceable to NIST standards, ensuring reliable calibration results for your pH meter. Important Notes: This solution is for calibration use only Not suitable for TDS/EC meters Avoid touching the sensor with your fingers Refer to your meter’s user guide for calibration instructions Warning: Contains concentrated materials that may be harmful. DO NOT DRINK. Show more