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USP <791> pH Proficiency Test
Product Details
Product Details
Quantitative Proficiency Test (PT) for laboratories performing potential hydrogen ions, pH, testing by USP <791> or equivalent. Participants report quantitative results for their sample(s). Samples provided two vials containing 6g of material. Participants are asked to determine the pH of the sample per the USP monograph or equivalent.
Target Analyte: Corn Starch, powder solid
USP PT Schedule
USP PT Schedule
| Study Number | Study Open Date | Study Close Date |
| PH-0422 | 4/18/2022 |
07/15/2022* Extended from 6/9/22 |
| PH-0922 | 9/19/2022 | 11/18/2022 |
| PH-0123 | 1/16/2023 | 3/17/2023 |
| PH-0523 | 5/15/2023 | 6/14/2023 |
MSDS/SDS
