DESCRIPTION:
HI7004C 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 ±0.002 pH @ 25℃
- Temperature chart of the actual pH value at various temperatures printed on each bottle
- Air-tight seal