Calibration Buffer, pH 4.01
HI 7004/1L pH 4.01 Calibration Solution (1 L), 1 bottle
HI 7004/1L is a premium quality pH 4.01 calibration solution that has been dyed red for easy buffer identification. 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. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.
- Accuracy of +/- 0.01 pH @ 25°C
- Temperature chart of the actual pH value at various temperatures printed on each bottle
- Air-tight Seal
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