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Currently, there are two types of chemical protective clothing on the market: limited-use protective clothing and reusable protective clothing. The former does not need to be cleaned after being contaminated in the dirt environment and is disposed of together with the dirt; the latter can be used repeatedly and must be cleaned after being contaminated in order to be reused. In the selection of protective clothing, consideration should also be given to determining the appropriate level of protection according to the actual situation. The higher the level of protection of protective clothing, the higher the price, so if the actual situation does not require a high level of protection, it should save costs and avoid Unnecessary waste.
So, how to provide suitable protective clothing for workers to achieve effective protection? The following describes the basic principles and selection basis for choosing protective clothing.
There is no doubt that disposable protective clothing has many advantages over reusable protective clothing, such as no decontamination, light weight, relatively low cost, and significant hygienic properties. In particular, for hard physical labor in contaminated areas, it is generally not advisable to reuse the same protective clothing. Excessive perspiration may lead to the proliferation of bacteria (bacteria, mold, etc.), and the cleaning and preservation of reusable work clothes is a Complex, costly and costly work. First, it is not easy to completely clean the contaminants on protective clothing for repeated use. Second, after the decontamination, it is difficult to determine the protective performance of protective clothing before it can be kept clean. Therefore, from the perspective of safety and cost saving, a limited number of protective clothing is the first choice for protection. Now many countries have begun to use a limited number of protective clothing.
The most important and basic factor to consider in the protective clothing itself is protective. First, the materials chosen for protective clothing must have protective functions against the corresponding dangerous goods. Manufacturers/suppliers should be able to provide relevant infiltration data, and the user can then determine when to wear the product according to characteristics such as the toxicity of certain dangerous goods and the time that protective clothing can provide effective protection. Second, the quality of protective clothing also indirectly determines the protective and durable protective clothing. The relevant specifications include sutures, size, quality control and assurance. The size of protective clothing should ensure that it fits well. If it is too large, it is easy to be snagged by objects around it. If it is too small, it is easy to tear, which is not only dangerous but also extremely uncomfortable.
Ideal chemical protective clothing should take into account protection, durability and comfort. If the wearing of protective clothing feels depressing, even with protective clothing, workers may refuse to wear it because they are not comfortable. Generally, protective clothing with good comfort may have poor protection, such as traditional woven material work clothes; and protective clothing with good protection is often very bulky, such as traditional rubber and PVC protective clothing. The best option is to find the best balance between protection, durability, and comfort.
In the selection of protective clothing, consideration should also be given to determining the appropriate level of protection according to the actual situation. The higher the level of protection of protective clothing, the higher the price, so if the actual situation does not require a high level of protection, it should save costs and avoid Unnecessary waste.
In short, when selecting protective clothing, relevant risk analysis should be carried out, such as what kind of dangerous goods (types) workers will be exposed to. What kind of hazards do these dangerous goods have for health, how are their concentrations and in what form? Appear (gaseous, solid, liquid), in what manner may staff contact with such dangerous goods (continuous, accidental), according to the above analysis to determine the type of protective clothing, protection level, comprehensive consideration of protection, durability, taking into account the comfort Sex and cost factors, choose the appropriate protective clothing.
For the protection of organic solvents, oils and greases, coats, blouses and aprons made of neoprene or polyurethane coated with nylon or polyester are preferred.
For most oil and acid protection, jackets, trousers and aprons made of polyvinyl chloride (PVC) coated with nylon or polyester are preferred. They are also wear-resistant and tear-resistant.
When choosing chemical protective clothing and other protective equipment, the following points should be noted:
1. The chemical may penetrate the protective layer sooner or later, and its occurrence may not leave any visible signs on the surface of the protective clothing.
2. A protective material may play a good protective role against a chemical, but it is less protective of other chemicals, so no protective material can play an absolute protection against chemicals.
3. Chemicals penetrate the protective layer at a higher temperature, and some materials are more sensitive to temperature changes than other materials.
4. In short, thick protective clothing is better at preventing chemical penetration.
