Introduction Acid exposure may lead to contact dermatitis. Gloves are usually the last line of defense. This study assesses glove permeation behaviors under potential acid exposure by evaluating their performance against various acids. Methods This study employed ASTM F739 open-looped permeation test method, collecting samples every 15 minutes over 4 hours. Sulfuric acid (96% and 18%) and nitric acid (65% and 33%) were used as challenge solutions. Deionized water and artificial sweat served as collection media. Investigated nitrile gloves A (0.38 mm) and B (0.56 mm) and neoprene gloves C (0.60 mm) and D (0.75 mm). Permeation samples were measured using a pH meter, universal test papers for hydrogen ion breakthrough times (BTs), and ion-exchange chromatography for acidic ion BTs. Result The thickest glove, Glove D, exhibit no breakthroughs in all tests. Gloves A and B had average BTs of 50±8.66 and 125±22.91 minutes in the 65% nitric acid tests. Neoprene glove C broke through at 60±30 minutes in 96% sulfuric acid, earlier than nitrile gloves (glove A 110±8.66 minutes, glove B 175±8.66 minutes). Low acid concentrations showed no breakthrough. Permeation behaviors varied across the glove materials and acid ions. Collection media had no effect on BTs. Discussion and conclusion Glove material and thickness significantly impact acid solution permeation. The hydrogen ion concentration is crucial for BTs. Universal test papers were validated and recommended as practical low-tech acid breakthrough monitors.
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Wang et al. (2024) studied this question.
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