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Related Experiment Videos

Personal protective equipment and dermal exposure.

P G Evans1, J J McAlinden, P Griffin

  • 1Health and Safety Executive, Merseyside, United Kingdom.

Applied Occupational and Environmental Hygiene
|February 24, 2001
PubMed
Summary

Laboratory tests may overestimate the protection offered by personal protective equipment (PPE), particularly gloves. Real-world workplace conditions, like temperature differences, significantly impact chemical permeation and breakthrough times, affecting wearer safety.

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Area of Science:

  • Occupational Health and Safety
  • Materials Science
  • Chemical Engineering

Background:

  • Personal protective equipment (PPE) is a crucial control measure in hazardous environments.
  • Existing laboratory tests for PPE may not accurately reflect real-world protection levels.
  • Workplace studies indicate significant contaminant spread within protective clothing, including gloves.

Purpose of the Study:

  • To investigate the impact of temperature differentials on chemical permeation through glove materials.
  • To compare laboratory-based protection data with performance under realistic workplace temperature conditions.
  • To assess the accuracy of manufacturer's test data for glove materials.

Main Methods:

  • A specialized test cell was designed and constructed to simulate workplace temperatures inside and outside gloves.

Related Experiment Videos

  • Two distinct chemical solvents were tested against two different glove materials.
  • Breakthrough times and permeation rates were measured under three controlled temperature conditions.

    • Main Results:

    • Significant differences were observed between measured breakthrough times/permeation rates and manufacturer's test data.
    • Temperature differentials demonstrably influenced the rate at which chemical solvents permeated glove materials.
    • Laboratory-derived protection levels were not consistently achieved under simulated workplace conditions.

    Conclusions:

    • Current laboratory testing methods may not adequately predict PPE performance in dynamic workplace environments.
    • Temperature is a critical factor affecting chemical permeation through protective gloves, necessitating revised testing protocols.
    • Findings have direct implications for assessing and mitigating health and safety risks for PPE wearers.