Hanna Instruments HI70007P pH 7.01 Calibration Buffer Sachets (25 × 20 mL)

Description HI70007P pH 7.01 calibration buffer sachets provide a stable, laboratory-grade reference solution for precise pH meter calibration in both lab and field environments. This standard pH 7.01 buffer is produced in accordance with ISO 3696/BS3978 guidelines using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature-controlled facility monitored with certified thermometers. Each batch is verified to an accuracy of ±0.01 pH at 25 °C and is fully traceable to NIST Standard Reference Materials (SRMs), making HI70007P an ideal choice for routine calibration, quality control, and regulated applications where reliable pH 7.01 performance is critical. Convenience of individual packaging Ideal for users who calibrate infrequently and prefer fresh, single-use pH 7.01 buffer portions Compact sachets are easy to transport, making them well-suited for field measurements and on-site calibration Each 20 mL sachet is sealed to maintain buffer stability and freshness until the moment it is opened Light-blocking foil packaging helps prevent UV-induced oxidation that could otherwise shift the pH value over time Each sachet marked with lot number and expiration date. Hanna calibration buffers are formulated for a 5-year unopened shelf life from the date of manufacture, supporting long-term storage Color coded label for easy pH buffer value identification Color-coded labeling makes it simple to distinguish the pH 7.01 buffer from other calibration standards during multi-point calibration Buffer solution is free of dyes, helping to prevent staining or interference with the reference cell and junction of sensitive pH electrodes