Product Code: HI7007/1G Hanna HI7007/1G is a high-quality pH 7.01 calibration buffer solution supplied in a 1 US gallon (3.78 L) bottle. It is formulated for accurate calibration of pH meters and electrodes and is particularly useful when testing samples expected to have a near-neutral pH. The solution is green colour-coded for easy identification and provides an accuracy of ±0.01 pH at 25°C. Hanna prepares its calibration buffers using high-purity salts, deionized water, certified balances and Class A glassware under controlled conditions. The stated pH values are traceable to NIST Standard Reference Materials. Each bottle is supplied with a lot number, expiry date and temperature correlation information. The 3.78 L size is well suited to water quality laboratories, aquaculture facilities, fish hatcheries, environmental testing programmes and other applications involving frequent pH calibration. pH 7.01 at 25°C Accuracy of ±0.01 pH 1 US gallon (3.78 L) bottle Green colour-coded solution Prepared using high-purity salts and deionized water Traceable to NIST Standard Reference Materials Lot number and expiry date printed on bottle Temperature correlation chart provided Airtight bottle with tamper-proof seal Ready to use