This document provides guidance on the permeation resistance of DuPont Tychem protective fabrics against chemicals. It includes:
- Independent laboratory testing of Tychem limited-use and reusable fabrics against chemicals based on standardized permeation testing methods.
- Instructions on how to use the guide to look up permeation data for specific chemicals against Tychem fabrics, including chemical indexes to locate chemicals.
- Explanations of key terms like permeation, the process by which chemicals can absorb and diffuse through barrier materials like protective fabrics over time with continuous contact.
- Permeation data tables listing the resistance of Tychem fabrics to chemicals from different subclasses, as well as warnings about proper use of protective garments.