Abstract: In order to explore the evaluation method of the decontamination effect of the chemical pollution from the heavy chemical protective clothing, taking polyvinyl chloride chemical protective clothing fabric as the research object, the decontamination test platform was independently developed to comprehensively carry out the pollution characteristics of acid pollution, alkali pollution, organic and inorganic pollution on chemical protective clothing. Also, the water spray decontamination test was carried out. The ability of different characterization methods such as pH value, fluorescence effect and ultraviolet spectrum to evaluate the pollution decontamination effect were explored. The results showed that the change of pH value was suitable for the evaluation of decontamination effect from acid—base pollution, the fluorescence method was suitable for auxiliary evaluation of the decontamination agent and decontamination technology for organic chemical pollution liquid. The combination of ultraviolet spectroscopy and fluorescence method had a certain effect on the evaluation of organic chemical pollution residues of chemical protective clothing fabrics. The chromatographic technique was suitable for evaluating the residual and decontamination rate of xylene pollution.

Key words: chemical protective clothing, decontamination, evaluation of the decontamination