Are There Regulations on the Materials of Mobile Toilets?

There are clear regulations on the materials of mobile toilets, which need to be comprehensively evaluated from dimensions such as the frame, walls, and floor to ensure durability, hygiene, and safety. The specific requirements are as follows:

1. Frame Structure Materials
The main frame should be made of high-strength, corrosion-resistant materials. Hot-dip galvanized steel pipes or steel structures are common choices, offering wind resistance and corrosion resistance, suitable for long-term outdoor use. In municipal scenarios, light square steel is preferred because its section moment of inertia is about 25% higher than that of angle steel, resulting in less deflection under the same load. Additionally, the average strength of welded joints is increased by 18%, making it more suitable for frequent relocation needs.

2. Wall Materials
The exterior walls should balance thermal insulation and fire resistance. Metal carved panels and color-steel composite panels are mainstream choices, while interior walls often use stone-plastic panels and aluminum-plastic panels, which are easy to clean and moisture-resistant. The interior of the walls should be filled with fire-resistant insulation materials (such as rock wool) to meet fire safety requirements. For example, for every 10mm increase in the thickness of the exterior wall insulation layer of municipal mobile toilets, the temperature difference between indoor and outdoor environments in winter can be reduced by 3-5℃. Moreover, the thermal conductivity of eco-friendly insulation materials should be lower than 0.035W/(m·K).

3. Floor Materials
The floor should be waterproof and slip-resistant. Slip-resistant patterned aluminum plates or reinforced composite flooring are commonly used materials, with a friction coefficient of over 0.6. When the depth of the slip-resistant pattern is designed between 1.5-2.0mm, it ensures slip resistance while facilitating cleaning and maintenance.

4. Other Material Requirements
Different scenarios have specific material requirements:

• Stainless steel (such as 304 stainless steel): Corrosion-resistant and easy to clean, suitable for high hygiene standard scenarios, but with higher costs.
• Fiberglass-reinforced plastic: Molded as a whole, waterproof and moisture-resistant, with high cost-effectiveness, but relatively weak impact resistance.
• Metal sandwich panels (such as color-steel foam panels): Low cost, but poor corrosion resistance, prone to rust, and difficult to clean.

5. Standard Basis
The production of mobile toilets should refer to national standards such as GB/T 18092-2000 Waterless Sanitary Toilets and CJ/T 378-2011 Portable Toilets, which specify requirements for material properties and craftsmanship to ensure products comply with safety and environmental protection regulations.