This series of articles focuses on laboratory tests for surface antimicrobials and disinfectants. The articles present ideas that the Standardized Biofilm Methods Lab has explored while developing biofilm methods and collaborating with interdisciplinary research teams. We appreciate your feedback. Feel free to contact us.

2021

STANDARDIZED METHODS: Antimicrobial Test Methods
Multi-laboratory study design for assessing the reproducibility, repeatability, and responsiveness of an antimicrobial test method

Citation:
Parker AE “KSA-SM-16—Multi-laboratory study design for assessing the reproducibility, repeatability, and responsiveness of an antimicrobial test method,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. March 31, 2021 [E-publication]

KSA-SM-16

2015

STANDARDIZED METHODS: Testing Surface Disinfectants
Disinfectant test results: How to average across laboratories

Citation:
Hamilton MA, Parker AE “KSA-SM-15—Disinfectant test results: How to average across laboratories,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. March 19, 2015 [E-publication]

KSA-SM-15.pdf

2013

STANDARDIZED METHODS: Testing Surface Disinfectants
Using R to calculate confidence intervals for the repeatability and reproducibility standard deviations and the intra-laboratory correlation coefficient of a disinfectant test method

Citation:
Hamilton MA, Parker AE “KSA-SM-14—Using to calculate confidence intervals for the repeatability and reproducibility standard deviations and the intra-laboratory correlation coefficient of a disinfectant test method,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. November 7, 2013 [E-publication]

KSA-SM-14.pdf
TestLD_TSM.txt
LR_NaOCl_TSM.txt

 

STANDARDIZED METHODS: Testing Surface Disinfectants
Using R to assess resemblance, repeatability, and reproducibility for quantitative and semi-quantitative disinfectant methods

Citation:
Parker AE, Hamilton MA “KSA-SM-13—Using R to assess resemblance, repeatability, and reproducibility for quantitative and semi-quantitative disinfectant methods,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. August 7, 2013 [E-publication]

KSA-SM-13.pdf
Controls_TSM.txt
LR_Glut_TSM.txt

2012

STANDARDIZED METHODS: Testing Surface Disinfectants
The importance of concurrent control carriers in laboratory tests of surface disinfectants

Citation:
Hamilton MA “KSA-SM-12— The importance of concurrent control carriers in laboratory tests of surface disinfectants,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. May 17, 2012 [E-publication]

KSA-SM-12.pdf

2011

STANDARDIZED METHODS: Testing Surface Disinfectants
How to decide whether the reproducibility standard deviation is small enough
Updated: October 30, 2011
Published: September 15, 2011

Citation:
Hamilton MA “KSA-SM-11—How to decide whether the reproducibility standard deviation is small enough,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. Published September 15, 2011; revised October 30, 2011. [E-publication]

KSA-SM-11_rev_103011.pdf
KSA-SM-11.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Assessing resemblance, repeatability, and reproducibility for quantitative methods
Updated: September 21, 2012
Updated: January 23, 2012
Published: June 23, 2011

Citation:
Parker AE, Hamilton MA “KSA-SM-10— Assessing Resemblance, Repeatability, and Reproducibility for quantitative methods,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. Published June 23, 2011; revised January 23, 2012 [E-publication]

KSA-SM-10_rev092112.pdf
KSA-SM-10_rev012312.pdf
KSA-SM-10.pdf

STANDARDIZED METHODS:  Testing Surface Disinfectants
Importance of checking whether the harvesting and disaggregating steps bias the results of a surface disinfectant test

Citation:
Hamilton MA “KSA-SM-09— Importance of checking whether the harvesting and disaggregating steps bias the results of a surface disinfectant test,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. March 31, 2011 [E-publication]

KSA-SM-09.pdf

STANDARDIZED METHODS:  Testing Surface Disinfectants
The P/N formula for the log reduction when using a semi-quantitative disinfectant test of type SQ1

Citation:
Hamilton MA “KSA-SM-08—The P/N formula for the log reduction when using a semi-quantitative disinfectant test of type SQ1,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. February 1, 2011 [E-publication]

KSA-SM-08.pdf

2010

STANDARDIZED METHODS: Testing Surface Disinfectants
The log reduction (LR) measure of disinfectant efficacy

Citation:
Hamilton MA “KSA-SM-07—The log reduction (LR) measure of disinfectant efficacy,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. November 17, 2010 [E-publication]

KSA-SM-07.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Enumerating viable cells by pooling counts for several dilutions

Citation:
Hamilton MA, Parker AE “KSA-SM-06—Enumerating viable cells by pooling counts for several dilutions,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. September 22, 2010 [E-publication]

KSA-SM-06.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
How the differences between disinfectant tests and chemical assays affect method evaluation criteria

Citation:
Hamilton MA “KSA-SM-05— Testing surface disinfectants: how the differences between disinfectant tests and chemical assays affect method evaluation criteria,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. August 19, 2010 [E-publication]

KSA-SM-05.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Method development phases

Citation:
Hamilton MA “KSA-SM-04—Testing surface disinfectants: Method development phases,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. July 25, 2010 [E-publication]

KSA-SM-04.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Desirable attributes of a standardized method

Citation:
Hamilton MA “KSA-SM-03—Testing surface disinfectants: Desirable attributes of a standardized method,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. June 10, 2010 [E-publication]

KSA-SM-03.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Quantitative, semi-quantitative, quantal, and alternative methods 

 Updated October 25, 2011
Published May 27, 2010  

Citation:
Hamilton MA “KSA-SM-02— Testing surface disinfectants: Quantitative, semi-quantitative, quantal, and alternative methods,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. Published May 27, 2010; revised October 25, 2011 [E-publication]

KSA-SM-02_rev102511.pdf
KSA-SM-02.pdf

STANDARDIZED METHODS: Testing Surface Disinfectants
Introduction

Citation:
Goeres DM “KSA-SM-01—Introduction to a set of ruminations on the terms and statistics associated with efficacy testing surface disinfectants,” Knowledge Sharing Articles, Center for Biofilm Engineering at Montana State University, Bozeman, MT. May 6, 2010 [E-publication]

KSA-SM-01.pdf

Related Link

Standardized Biofilm Methods Lab