ASTM WK62952

    New Practice for Standard Practices for Determining Microbial Colony Counts from Antimicrobial Test Methods by Plating Methods

    (What is a Work Item?)

    Developed by Subcommittee: E35.15 | Committee E35 | Contact Staff Manager


    1. Scope

    These practices cover recommended procedures for counting colonies, calculating results, and reporting colony-forming units (CFU) on membrane filters (MF) and standard pour and spread plates.


    CFU, microbiology, calculations, quantitative


    General principles in quantitative methods in an effort to standardize practices through the committee as there is no standardization currently being followed with methods within ASTM E35.15

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Andrew Coyle

    Draft Under Development