Wuhan Mobile Toilet Inspection Plan
The inspection plan for mobile toilets in Wuhan should encompass a comprehensive evaluation of their structure, equipment, systems, and safety performance, as detailed below:
I. Structural Safety Inspection
Inspect the tilt, cracks, and deformation of walls, floors, and roofs. Evaluate the welding integrity and node connection status of load-bearing components such as steel beams and columns. Use a level and distance meter to measure verticality and dimensional deviations. Test the floor's load-bearing capacity with pressure testing equipment and perform non-destructive testing on steel structure welds using an ultrasonic flaw detector. Combine on-site data with original design documents to calculate load-bearing capacity using PKPM software, analyzing the impact of dead loads, live loads, wind loads, and seismic forces.
II. Internal Equipment and Function Inspection
Check the integrity and drainage function of toilets, urinals, sinks, and other equipment. Test the electrical operation status of ventilation systems, lighting, and heating devices. Evaluate the performance of water-saving devices (e.g., single-flush water consumption) and deodorization devices. Verify drainage smoothness, lighting brightness, and ventilation efficiency through practical operation. Measure flush volume with standard measuring tools and inspect deodorization effects using an odor detector or visual inspection.
III. Water Supply and Drainage System Inspection
Conduct pressure tests on the water supply system to ensure no leaks. Test the conveyance capacity of drainage pipes, including the conveyance distance of solid waste and residue accumulation. Inspect the operational efficiency and tightness of sewage treatment devices. Use a water pressure gauge to measure water supply pressure, employ standard test objects (e.g., polypropylene balls) to measure pipe conveyance distance, and observe pipe wall residues with an endoscope.
IV. Electrical System Safety Inspection
Check whether the voltage and current of lighting, ventilation, and heating devices are within safe ranges. Evaluate the effectiveness of grounding protection and leakage protection devices. Test equipment parameters with a voltmeter and ammeter and verify device start-stop and function adjustment through practical operation.
V. Hygiene and Environmental Protection Inspection
Inspect the cleanliness of floors, walls, and equipment surfaces. Conduct bacterial culture tests to assess hygiene compliance. Test noise levels to ensure compliance with the GB3096-2008 standard. Record stain distribution through visual inspection, collect bacterial samples using petri dishes, and measure flushing noise with a sound level meter at a distance of 1 meter from the equipment.
Inspection Tools and Standard References
Tools include laser distance meters, pressure testing equipment, ultrasonic flaw detectors, sound level meters, etc. Recommended standards include GB/T18092-2008 'Non-flush Sanitary Toilets' and GB28379-2012 'Water Efficiency Limits for Toilet Flushing Devices'. Inspections should be carried out by professional institutions, and for high-risk or old toilets, it is recommended to add steel mechanical property testing.
