Description

GroLine pH 4.01 Calibration Buffer (1 L) – HI7004/1L

HI7004-023 is a high quality pH 4.01 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.

• Accuracy of ±0.01 pH @ 25℃

• Temperature chart of the actual pH value at various temperatures printed on each bottle

• Air-tight Seal