USP Proficiency Testing ProgramUSP PT Schemes

USP <51> Proficiency Test for Antimicrobial Effectiveness Testing


Product is used to evaluate the ability to evaluate test procedures and effectively demonstrate effectiveness of antimicrobial agent in category 1 product. read more


Catalog Number:
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Product Details

Product Details

PT Sample kit supplied as 2 sets, 5 Category 1 product panel consisting of 3 solutions containing antimicrobial agent and 2 solutions absent antimicrobial agents, 1 lyophilized pellet containing a quantified bacteria for inoculum preparation, 1 lyophilized pellet containing a quantified yeast or mold for inoculum preparation, and 2 vials containing 1.5mL each of appropriate sterile solution for lyophilized pellet hydration.

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



USP Harmonized Compendial Methods

USP Harmonized Compendial Methods


United States Pharmacopeia (USP) Ph. Eur, EP JP NSI Catalog Item Harmonized Description


 USP  <61>
Microbiological Examination of Non-sterile Products




JP <35> Microbial Limit Test




Microbial Enumeration of Non-sterile Products


USP <62>

Microbiological Examination of Non-sterile Products: Tests for Specified Microorganisms




JP <35> Microbial Limit Test




Test for Specified Microorganisms in Non-sterile Products


USP <71>

Sterility Testing




JP <4.06>




Sterility Test


USP <51>

Antimicrobial Effectiveness Testing




JP <19>




Preservative Efficacy Test