GB7956.22-2025
Fire fighting vehicle—Part 22：Liquid extinguishing agent supply fire fighting vehicle
消防车 第22部分：供液消防车
GB 7956.22-2025 is an upcoming mandatory Chinese national standard for Fire fighting vehicle—Part 22：Liquid extinguishing agent supply fire fighting vehicle. It appears in the Auto compliance cluster with a product safety focus and has an implementation date of Jan 1, 2027.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
GB 7956.22-2025 applies specifically to the design, manufacturing, and inspection of liquid extinguishing agent supply fire fighting vehicles (供液消防车). It covers specialized vehicles equipped to transport and supply liquid fire extinguishing agents other than water. This standard must be used in conjunction with GB 7956.1, which provides the general technical conditions for all fire fighting vehicles. It is not applicable to standard water tankers or foam fire trucks, which are covered under other parts of the GB 7956 series.
Technical requirements
The standard mandates that the vehicle's fuel tank capacity must support driving 100 km followed by at least 2 hours of continuous operation of all supply pumps at rated pressure and flow. It requires an electronic pump speed controller and emergency manual overrides for all automatically controlled valves. Manufacturers must ensure anti-overflow measures are in place to prevent extinguishing agents from reaching the operating area. The operating panel must feature specific display devices for pump pressure, speed, and tank levels, alongside clear piping diagrams and warning signs. For liquid tanks, the standard specifies strict volume error margins based on capacity and mandates anti-surge baffles for larger tanks. Tanks must be constructed from corrosion-resistant materials and feature manholes, sewage holes, and breathing ports. The internal structure must ensure that the residual rate of the extinguishing agent does not exceed 5%. The supply system components, including all wetted parts, must be made of corrosion-resistant materials. The pump must withstand dry running for at least 10 minutes without damage. The system requires non-foaming or defoaming capabilities and an automatic shutdown at low liquid levels. Performance requirements dictate specific suction times and continuous operation parameters under rated conditions. Piping must be color-coded according to GB/T 3181-2008, with suction pipes in deep sea blue and supply pipes in deep yellow. The supply pipeline requires a safety valve set to open at 1.05 to 1.1 times the maximum working pressure. Furthermore, the system must include a dedicated cleaning pipeline designed to prevent cleaning water from contaminating the extinguishing agent tank.
Testing methods
The standard outlines comprehensive testing procedures, including a continuous operation test where the vehicle must drive 100 km and then operate the supply pump at rated capacity for 2 hours. Performance tests measure suction time and supply flow rates under a standard 2m suction depth, with environmental corrections applied according to GB 6245. Hydrostatic pressure tests are conducted on supply pipelines to verify both sealing integrity and structural strength. Additionally, visual inspections and specific measurement tools are used to verify safety valve activation pressures, tank volume accuracy, and the correct color-coding of pipe systems.
FAQs
What products are regulated under GB 7956.22-2025?
This standard specifically regulates liquid extinguishing agent supply fire fighting vehicles (供液消防车). It applies to the design, manufacturing, and inspection of these specialized vehicles, which are equipped with vehicle-mounted supply pumps and systems designed to transport and deliver liquid fire extinguishing agents other than water.
Are there any updates from the previous version of GB 7956.22?
Yes, this is a new part of the GB 7956 series published on December 2, 2025, and will be officially implemented starting January 1, 2027. It specifically addresses the unique technical requirements for liquid extinguishing agent supply vehicles, which were previously governed under the general requirements of GB 7956.1.
How does GB 7956.22-2025 differ from international ISO standards?
GB 7956.22-2025 is a national standard specifically tailored to the Chinese market's regulatory framework for fire fighting vehicles. While its technical principles may align with international standards, it explicitly references Chinese standards such as GB 7956.1 for general technical conditions and GB 6245 for fire pump specifications. Manufacturers must comply with this specific GB standard to achieve CCC certification and legally sell their vehicles in China.
The summary above provides a high-level overview of GB 7956.22-2025. To ensure complete compliance for your fire fighting vehicles entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 7956.22-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C84
- ICS
- 13.220.10
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China