Nitrogen - Solutions - Calibration(2)

HI7007M is a premium quality pH 7.01 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. 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.

• 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

HI7004M 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. 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℃
• Temperature chart of the actual pH value at various temperatures printed on each bottle
• Air-tight seal