6. 601 to 999 - Physical Testing, Animal Feed, Biologics, Dietary Supplements, Food & Perishables, Hemp & Cannabis, Industrial, Microbiology, PT Scheduled Studies, Topicals & Cosmetics, USP Proficiency Testing Program
USP <621> Proficiency Test for Chromatography – GC-ECD
Product Details
Product Details
Kit supplied as 3-sample panel plus a reference material.
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
