Hanna pH4.01 500ml Buffer Calibration Solution
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HI7004L pH 4.01 Calibration Solution (500 mL)
HI7004L is a premium quality pH 4.01 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution.
- Color coded label for easy pH buffer value identification
- Accuracy of ±0.01 pH @ 25℃
- Temperature chart of the actual pH value at various temperatures printed on each bottle
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