This pH 4.01 technical calibration buffer 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 manufacture date for an unopened bottle.
This pH 4.01 technical calibration buffer 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 manufacture date for an unopened bottle.
Discontinued!
This product has been discontinued and is no longer available.
There is no direct replacement, however we recommend the:
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