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portwest personal protective equipment: Acid- and alkali-resistant workwear is primarily used in activities such as the production, transfer, and handling of acids and other chemicals; cleaning and maintenance of chemical containers like tanks; and the cleanup of chemical waste and hazardous materials. Personnel who are in prolonged contact with strong acids and other chemicals can effectively isolate themselves from harmful substances such as strong acids and solvents by wearing appropriate acid-resistant workwear, preventing skin contact. The "Standard for the Provision of Labor Protection Articles (Trial)" issued by the State Economic and Trade Commission in 2015 stipulates that electroplaters, lead powder manufacturers, picklers, electrolysis workers, solution preparers, and chemical process operators are typical roles requiring the issuance of acid-resistant suits. Workers in these roles should be equipped with acid-resistant workwear of various types and grades. Furthermore, for chemical enterprises, although chemical raw materials are generally contained within pipelines and reaction vessels, appropriate acid-resistant suits should still be provided to personnel with a higher likelihood or frequency of contact with chemicals (such as charging operators and maintenance staff). This ensures maximum protection of operator safety in the event of leaks due to equipment or pipeline failures, or operational errors.

portwest personal protective equipment: Functions and applications

Acid- and alkali-resistant workwear is an essential component of protective clothing, alongside fire-resistant chemical suits and heat-insulating protective garments. It is worn by workers in environments with hazardous or corrosive chemicals to protect against injury from chemical dangers or corrosive materials. To understand the function of acid- and alkali-resistant workwear, we must look at the workers who wear it. Simply put, its purpose is to provide resistance to corrosion, acids, and alkalis. The fabric is mainly used to prevent harm to the human body from chemical agents such as acids and alkalis, prolonging the time it takes for acid to penetrate from the garment surface to the skin. It prevents acid from adhering to the surface, ensures minimal change in tensile strength after acid exposure, and withstands significant acid pressure. It is indispensable equipment for safeguarding the health of workers in the chemical industry. For non-breathable acid-resistant workwear, ventilation holes for sweat release and temperature regulation should be located under the arms, on the back, and on the inner hips to prevent external debris or acid from entering. Unnecessary decorations such as straps and loops should be minimized to avoid acid accumulation in seams or interference with work.

portwest personal protective equipment: Fabric

The fabric of acid- and alkali-resistant workwear is mainly used to prevent harm to the human body from chemical agents such as acids and alkalis, prolonging the time it takes for acid to penetrate from the garment surface to the skin. It prevents acid from adhering to the surface, ensures minimal change in tensile strength after acid exposure, and withstands significant acid pressure. Acid- and alkali-resistant cotton fabrics are generally divided into non-breathable and breathable types. Non-breathable fabrics typically include rubber, nylon, plastic, and composite materials; while safe, they are uncomfortable to wear. Breathable fabrics generally include cotton and cotton-synthetic blends, such as CVC, polyester-cotton, and cotton-nylon. The fabric for acid- and alkali-resistant workwear must generally possess characteristics such as acid resistance, abrasion resistance, high breaking strength, and strong puncture resistance. Among these properties, acid and alkali resistance has the highest requirement. The acid and alkali resistance reaches 97.5%, which is higher than the national acid resistance standard of 105%, meeting the requirements for acid- and alkali-resistant workwear.

portwest personal protective equipment: Precautions

Acid- and alkali-resistant workwear must not come into direct contact with flames or molten materials. Before use, the garment must be carefully inspected for damage; if damaged, it is strictly prohibited to use it. When wearing acid- and alkali-resistant workwear, ensure the hood fits tightly with the face mask, and fasten the neck strap and chest buttons securely to ensure an airtight seal around the neck and chest. The waist belt must be tightened to reduce the "bellows effect" during movement. After each use, wash with clean water or a 0.5–16% sodium carbonate solution depending on the level of soiling, then rinse with clean water. Dry in a cool, ventilated place, and iron before packaging. To ensure effective acid and alkali protection, it is strongly recommended to keep soaking and washing times as short as possible, and to iron after washing. When folding a fully sealed chemical protective suit, lay it on the ground with the hood opening facing up. Fold back the hood, neck strap, and sleeves, then fold the suit vertically, aligning left and right sides. Place the gloves in the center, roll the suit with the boot toes facing outward and soles together, and place it horizontally into the fully sealed chemical protective suit bag. During storage, fully sealed chemical protective suits must be kept away from heat and direct sunlight, and must not come into contact with active chemicals or oils.

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