HI7004M pH 4.01 Calibration Solution (230 mL)
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°C
- Temperature chart of the actual pH value at various temperatures printed on each bottle
- Air-tight seal
HI7004M is a premium quality pH 4.01 calibration solution. produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to +/- 0.01 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs).
Air tight bottle with tamper-proof seal
Ensures quality and freshness of solution
Each bottle marked with lot number and expiration date.
Hanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.
Color coded label for easy pH buffer value identification
Easy to identify different buffer values
Solution does not contain any dyes that may stain the reference cell of a pH electrode
|Description||standard calibration buffer|
|Certificate of Analysis||no|
|pH Accuracy||±0.01 pH|
|pH Value @ 25°C||4.01|