This standard applies to the detection and determination of hydrogen and potassium phthalate formic acid in pH reference reagents, specifying its properties, specifications, test methods, inspection rules, and Encasement and marking. Hydrogen and potassium phthalate formic acid is used as a pH reference material, mainly for the calibration of pH Meters and the preparation of standard solutions. This standard is the basis for ensuring pH measurement accuracy and reliability.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G61 | ICS | 71.040.30 |
| Release Date | 2008-12-31 00:00:00 | Implementation Date | 2009-06-01 00:00:00 |