3. 181 to 203 - Identification, Animal Feed, Dietary Supplements, Food & Perishables, Industrial, PT Scheduled Studies, Shop by General Chapter, Shop by Industry, Topicals & Cosmetics, USP Proficiency Testing Program, USP PT Schemes
USP <281> Residue on Ignition Proficiency Test
Product Details
Product Details
Quantitative Proficiency Test (PT) for laboratories performing Residue on Ignition Assay by USP <281> or equivalent. Participants report quantitative results for their sample(s). Samples provided two vials containing 2g of material. Participants are asked to determine the percentage (%) of Residue on Ignition (Assay) of target analyte in 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
