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USP <281> Residue on Ignition Proficiency Test


Proficiency Test for laboratories performing Assay by USP <281> Residue on Ignition. read more



Catalog Number:
Choose Study

PH-0523, PH-0923

U.S. Pharmacopeia USP PT Program Schedule

2023 PH
Study Number Study Opens Study Closes
PH-0123 Jan. 16, 2023 March 17, 2023
PH-0523 May 15, 2023 July 14, 2023
PH-0923 September 15, 2023 November 17, 2023
PH-0124 January 15, 2024 March 17, 2024


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