ASTM E1174-21 PDF

Overview

ASTM E1174-21 is a globally recognized standard test method developed by ASTM International, specifically designed for evaluating the antimicrobial effectiveness of healthcare personnel handwash formulations. The method assesses how well handwashing agents reduce transient microbial skin flora-microorganisms from the environment that contaminate but do not normally reside on the skin-during clinical hand hygiene procedures. A comprehensive knowledge of microbiological techniques and compliance with relevant human subject protection regulations are prerequisites for conducting this test.

This standard is crucial for manufacturers and laboratories developing or validating antimicrobial handwash products intended for frequent use by healthcare professionals. While ASTM E1174-21 focuses on water-assisted handwash formulations, alcohol-based hand rubs and other leave-on products are typically assessed using ASTM E2755.

Key Topics

• Antimicrobial Effectiveness: Measures the reduction of transient bacteria on hands after using a specific handwash formulation.
• Test Organisms: Utilizes marker organisms such as Serratia marcescens (primary) and Escherichia coli (alternative), taking into account the safety and susceptibility profiles of these strains.
• Testing Procedure: Involves artificially contaminating volunteers’ hands, applying the test formulation, and quantifying the remaining bacteria to determine log reductions.
• Product Forms Evaluated: Includes liquid handwashes, solid soaps, and, in some cases, leave-on hand hygiene products-though leave-on products are ideally tested with ASTM E2755.
• Data Analysis: Provides approaches for calculating and comparing log reductions in bacterial counts, supporting claims of handwash efficacy.
• Human Subject Safety: Stresses adherence to safety, health, and environmental practices, and compliance with regulatory requirements for human research.

Applications

ASTM E1174-21 is widely implemented in the following contexts:

• Product Development and Validation: Enables manufacturers of antimicrobial handwashes to substantiate performance claims regarding bacterial reduction, supporting regulatory submissions and market entry in healthcare and clinical settings.
• Regulatory Compliance: Assists organizations in meeting stringent requirements from health agencies for hand hygiene products used in hospitals, clinics, and laboratories.
• Quality Assurance and Comparative Testing: Serves as a benchmark for comparing new hand hygiene formulations against established products.
• Academic and Clinical Research: Provides a framework for scientific studies investigating the effectiveness of different hand hygiene protocols.

By employing this standard, stakeholders can ensure that healthcare personnel handwash products contribute effectively to infection prevention and patient safety.

Related Standards

Professionals using ASTM E1174-21 may also refer to these related standards for broader or specialized testing needs:

• ASTM E1054 - Evaluation of inactivators of antimicrobial agents, essential for method validation in recovery studies.
• ASTM E2755 - Test method for determining bacteria-eliminating effectiveness of healthcare personnel hand rub formulations, particularly for alcohol-based or leave-on products.
• ASTM E2756 - Provides standardized terminology for antimicrobial and antiviral agents used in related testing.
• Relevant Regulatory Guidance - United States Food and Drug Administration (FDA) requirements and guidelines for hand hygiene products in healthcare environments.

Using ASTM E1174-21 in combination with these standards ensures a thorough and scientifically validated approach to hand hygiene product evaluation and regulatory compliance.

Keywords: ASTM E1174-21, healthcare handwash evaluation, antimicrobial handwash testing, transient microbial flora, hand hygiene standard, bacterial reduction, clinical handwash effectiveness, infection control standards