Product Details
Product Details
Quantitative Proficiency Test (PT) for laboratories performing Loss on Drying testing by USP <731> or equivalent. Participants report quantitative results for their sample(s). Samples provided in duplicate. Participant will receive two vials containing 2g of material. Participants are asked to determine the percent (%) loss on drying for the sample per the USP monograph or equivalent.
Sample Material: Corn Starch, powdered 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
