Chemical protective clothing cleaning method

Chemical protective clothing is widely used in chemical, firefighting, metallurgical and hazardous chemical rescue areas. Because the working environment is rather special, it is easy to cause the chemical protective clothing to be attached by chemicals or poisonous and harmful, and there is a hidden danger to the user's safety. Chemical protective clothing after use must be immediately performed by a professional in the designated area for disinfection and cleaning to facilitate reuse.

If the chemical protection suits are not clean and disinfected, there will be a risk of secondary pollution. Know the proper methods of cleaning and disinfecting the chemical protective clothing after use to ensure the normal use of chemical protective clothing and personal safety of users.

The cleaning and disinfection of chemical protective clothing can be divided into two stages: disinfection, cleaning or fumigation . Disinfection of chemical protection clothing is the most critical step to ensure the safety of personnel. It removes or neutralizes toxic substances on chemical protective clothing by physical or chemical means. The reason why chemical protective clothing is to be disinfected and cleaned at the first time is because if the hazardous chemical solution stays on the surface of the chemical protective clothing for a long time, the material of the chemical protective clothing is likely to be corroded and destroyed.

There are three methods for standard disinfection of chemical protective clothing:

1. Use physical methods to remove contaminants, such as particulate matter;
2. Chemical methods of alcohol disinfection or other poisons render the contaminants inactive or toxic;
3. Combination of Method 1 and Method 2

Because chemical fibers are all adsorptive, there will be a small amount of chemicals left in the fiber after sterilization. Therefore, the disinfected chemical protective clothing needs to be cleaned again with warm water and a neutral solvent. After the chemical protective clothing is cleaned, rinse the chemical protective clothing once with warm water, and then hang it vertically using a hanger. Chemical protective clothing should be hung in a ventilated place to dry, avoid high temperature and strong light exposure.

The dust, most of the inorganic substances and some of the organic matter on the surface of the chemical protection suit can be completed by detergents and wipes. The use of organic solvents makes it easier to remove organic contaminants. However, organic solvents will permeate into the interior of chemical-resistant clothing fabrics during the washing process, and localized contamination will spread out with organic solvents. Therefore, we also need to use high-pressure hot air for chemical defense. The service is fumigated.

Fumigation removes hazardous chemicals and only targets volatile contaminants. For some special toxic and hazardous chemicals, the used chemical protective clothing should be discontinued and treated uniformly.

Expand knowledge:

1. Before disinfecting chemical protective clothing, it is necessary to determine the cleaning plan according to the material and technical parameters of the chemical protective clothing, and the type, concentration, and contact time of the chemicals that the chemical protection suit is exposed to.
2. The exposure to chemical concentrations is low; non-toxic, non-permeating chemicals; the nature of the chemicals that are in contact with them can be disinfected and cleaned under these three conditions.
3. Class A chemical sites (including unknown chemicals); highly toxic chemicals (carcinogenic, mutagenic, and permeable skin, etc.); chemical protective clothing damaged (including scratch, perforation, deformation, etc.), it is recommended to directly discard .

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