This is an accelerated test method to determine the potential damage caused by retained chlorine. It has been designed for use on cotton and rayon fabrics, but may be used on any fabric or finish that is not damaged by heat alone.
The fabrics are treated in sodium hypochlorite solution, rinsed, dried, and pressed between two hot metal plates. The damaging action of the retained chlorine is calculated from the difference in tensile strength before and after pressing.
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