Technical Calibration Buffer Solution pH 4.01 @ 500 ml | Hanna HI5004

Technical Calibration Buffer Solution pH 4.01 @ 500 ml - Hanna HI5004 Descriptions : HI5004 is a premium quality pH 4.01 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. 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 technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Supplied with Certificate of Analysis Accuracy of +/- 0.01 pH @ 25°C Temperature chart of the actual pH value at various temperatures printed on each bottle