Yixian Mobile Toilet Inspection

The inspection of mobile toilets in Yixian should be carried out in accordance with national regulations and technical standards, covering multiple dimensions such as structural safety, hygiene conditions, and environmental performance. It is recommended to entrust a qualified third-party organization for execution.

I. Inspection Standards and Core Requirements

1. Basic Standards: Compliance with the 'Urban Public Toilet Design Standard' (CJJ 14-2016) and the 'Portable Sanitation Facility Hygiene Standard' is required to ensure that the equipment is brand new and meets performance standards.
2. Structural Safety: The overall structure must be stable, with wind resistance not less than Level 10, earthquake resistance not less than Level 8, and a service life of at least 10 years. During inspection, the strength of frame materials (e.g., steel structure welding in compliance with JGJ81 standards), the stability of connecting components, and the effectiveness of waterproof, windproof, and earthquake-resistant designs should be verified.
3. Hygiene Conditions: The toilet bowl surface should be smooth and crack-free, with a smooth and unobstructed sewage discharge system and no leaks. Cleaning tools should be readily available. Surface bacterial colony counts and Escherichia coli groups should be tested using bacterial culture dishes.
4. Environmental Performance: Equipped with a sewage treatment system to achieve resourceful or harmless treatment of sewage. Water-saving devices should be tested for actual water consumption, and deodorization devices should be verified for effectiveness using an odor detector.

II. Inspection Items and Methods

1. Structural Safety Inspection: Visually inspect for tilting and cracks, and measure verticality with a level gauge; test the floor's load-bearing capacity using pressure testing equipment.
2. Internal Equipment Inspection: Visually inspect the appearance of toilets, sinks, etc., and verify drainage function through actual operation.
3. Water Supply and Drainage System Inspection: Measure water supply pressure with a water pressure gauge and test drainage smoothness by releasing water; spray with a water jet (0.1MPa, 500mm distance) for 15 minutes and check for leaks after 1 hour.
4. Electrical System Inspection: Measure working voltage/current with a voltmeter and ammeter, verify the status of lighting, ventilation, and other equipment through actual operation, and focus on testing waterproof performance for outdoor equipment.
5. Sealing and Waterproof Inspection: Fill the storage tank with water and let it stand for more than 1 hour to check for leaks; visually inspect pipeline layout and the tightness of sewage discharge ports.

III. Requirements for Third-Party Inspection Organizations

A qualified organization should be selected, with an inspection scope covering at least 15 types of mobile toilets, including plastic integral and biodegradable types. Core inspection items should include at least 15 aspects, such as structural stability, material corrosion resistance, formaldehyde and VOCs emissions, and wastewater purification efficiency. Inspection methods should adopt at least 15 standards, including GB/T 17219-2021 and ISO 30500:2018, and be equipped with key equipment such as constant temperature and humidity incubators and gas chromatography-mass spectrometers.

IV. Inspection Process Recommendations

1. Supervisory Testing: The purchaser may assign personnel to supervise the manufacturing process or conduct a pre-acceptance inspection before shipment.
2. On-Site Testing: Upon arrival of the equipment, unpack and inspect it jointly with the supplier, verify against the inventory, and explain functional operations.
3. Operational Testing: Conduct a trial run after installation and commissioning to ensure fault-free operation and confirmation by the using unit.