Evaluation of the Permea-Tec pads as new technology for the detection of chemical breakthrough in PPC
✍ Scribed by Nadia S. El-Ayouby; Stephen P. Berardinelli; Rotha C. Hall
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 60 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0271-3586
No coin nor oath required. For personal study only.
✦ Synopsis
BACKGROUND
Occupational skin exposure to chemicals and their mixtures is a major problem for workers involved in production, use, and handling of these chemicals. Regulatory standards require that workers use protective gloves and other protective equipment when they come in contact with chemicals. The degree of protection provided by the different types of protective equipment, especially gloves, depends on their ability to resist the permeation of these chemicals.
Permea-Tec Pads (PTP) are a breakthrough indicator that enhances the workers' ability to protect themselves from skin exposure to chemicals. The pads employ microencapsulated color indicators that respond to a wide range of chemical contaminants such as aromatic amines, aliphatic amines, and acids/bases. General solvent PTP combines a charcoal sorption pad with a colorimetric strip in the center. The pads are attached to the workers' hands before donning the gloves. The color indicator responds to the chemical, if contamination occurs. [Foelschow, 1992; Hirayma and Ikeda, 1997].
An evaluation of three types of PTP was performed using gloves that had a published breakthrough time of `1 h. The objective was to evaluate these products as a protective clothing end-of-service-life indicator.