MH/T 6134-2025 in English
VALIDGeneral Airport Civil Aviation Fuel Quality Control and Operational Procedures
- Issued on:2025-07-18
- Implemented on:2025-08-01
- File Format:PDF
- Delivery:Via email within 5 business days
$582.00
| Standard No: | MH/T 6134-2025 |
| Document status: | VALID |
| Title in English: | General Airport Civil Aviation Fuel Quality Control and Operational Procedures |
| Title in Chinese: | 通用机场民用航空燃料质量控制和操作程序 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2025-07-18 |
| Implemented on: | 2025-08-01 |
| ICS Classification: | 03.120.10-Quality management and quality assurance |
| Chinese Classification: | V00-Standardization and quality management |
| Professional Classification: | MH-Civil Aviation |
| Related Keywords: | aviation fuel quality control
general airport civil aviation fuel quality control aviation fuel quality fuel quality control standards quality control |
Introduction
Standard Overview and Technical Background
MH/T 6134-2025 is a key industry standard issued by the Civil Aviation Administration of China for aviation fuel quality control at general aviation airports. It was released on July 18, 2025, and officially implemented on August 1. This standard fills a gap in fuel quality control standards for general aviation airports, providing a systematic quality management framework for fuel suppliers at Class A and Class B general aviation airports.
The standard's development stems from the rapid development of the general aviation industry and the growing demand for aviation fuel quality and safety. With the increasing number of general aviation airports and the diversification of business models, there is an urgent need to establish unified quality control standards to ensure aircraft safety. This standard draws on existing standards such as MH/T 6020 and MH/T 6044, while also being adapted to the specific characteristics of general aviation airports.
Analysis of core quality control requirements
The standard establishes a full-chain quality control system from fuel reception, storage, issuance to refueling, with a focus on regulating the following aspects:
Technical requirements for facilities and equipment
The standard puts forward detailed technical requirements for general airport fuel facilities and equipment:
| Equipment type | Technical requirements | Key points of quality control | Inspection cycle |
|---|---|---|---|
| Filtering device | Jet fuel shall be installed with a filter separator that complies with GB/T 21358, and aviation gasoline shall be installed with a filter with a pore size of ≤5μm | Pressure differential monitoring, regular inspection, filter element replacement | Annual opening and inspection |
| Highway tanker | Specially designed for transporting fuels of the same grade, with bottom loading function | Front-loading information verification, lead seal inspection, dedicated vehicle | Quarterly/annual inspection |
| Refueling equipment | Single-grade fuel loading, independent pipeline setting | Clear grade identification, regular filter cleaning | Filter inspection every 3 months |
| Hose system | Recommended service life of C-type hose is 6-10 years | Soak and rinse before first use, regular visual inspection | Monthly inspection |
Fuel inspection system
The standard establishes a multi-level fuel inspection system, including appearance inspection, verification inspection, routine inspection and re-assessment inspection:
| Inspection type | Applicable scenarios | Main inspection items | Quality judgment criteria |
|---|---|---|---|
| Appearance inspection | Daily operations, before receiving and sending | Color, particulate contaminants, undissolved water | Clear and transparent, no impurity moisture |
| Verification inspection | Batch acceptance, quality monitoring | Key indicators such as density, appearance, conductivity | Difference is within the acceptable range |
| Routine inspection | Quality verification of special system | 6 items for jet fuel, 6 items for aviation gasoline | Compliance with product standard indicators |
| Re-evaluation inspection | Storage for more than 6 months, multiple batches received | Inspection of all specifications or designated items | Indicator changes are within the allowable range |
Key points for implementation of process control procedures
Quality control in the receiving link
Fuel receiving is the first checkpoint of quality control, and the standard requires:
- Quality certificate verification: Product quality certificate must be checked, and fuel specifications, brand, quantity and other information must be verified
- Acceptance of road tankers: Lead seal integrity inspection, front-load information confirmation, and special verification
- Settling and drainage requirements: After the road tanker stops, let it settle for at least 10 minutes, and then take samples from each tank for inspection.
- Filter monitoring: During the receiving period, drain the sediment from the oil filter every 2 hours. If the pressure difference is abnormal, stop collecting oil immediately.
Storage management requirements
Quality control in the storage process directly affects the long-term stability of the fuel:
- Settling time control: Jet fuel settles for 3 hours per meter or 24 hours for the entire tank; aviation gasoline settles for 45 minutes per meter.
- Regular sediment drainage system: Jet fuel storage tanks drain sediment weekly, and discharge promptly in special weather conditions.
- Inspection cycle management: Re-assess and inspect after 6 months of storage to ensure quality stability.
- Bulk fuel management: Store by brand and batch, avoid direct sunlight, and regularly check for deformation and leakage.
Issuance and refueling control
Issuance and refueling are the final links in the delivery and use of fuel. The standard stipulates strict control requirements:
- Issuance certificate: Before the storage tank is dispatched, a issuance certificate must be issued
- Conductivity requirements: The conductivity of the fuel dispatched to the refueling truck should not be less than 70 pS/m
- Pre-refueling inspection: Before the first refueling of the day, the refueling equipment must be drained to ensure that the appearance is qualified
- Hose replacement requirements: Gravity refueling hoses that have static fuel storage for more than 7 days must be replaced with 2 times the capacity of fuel
Key technical requirements and innovations
Facility and equipment identification system
The standard has established a fuel facility and equipment identification system dedicated to general airports for the first time, using unified color codes and labeling requirements:
| Jet Fuel | No. 3 Jet Fuel | Black | RGB(0,0,0) | Jet Fuel No. 3 |
| Jet Fuel | JET A-1 | Black | RGB(0,0,0) | JET A-1 |
| Aviation Gasoline | No. 95 | Orange | RGB(255,150,50) | 95# Aviation Gasoline |
| Aviation Gasoline | UL94 | Purple | RGB(110,50,160) | UL94 Aviation Gasoline |
Microbial Contamination Control
The standard introduces advanced microbial contamination detection and control requirements:
- Pollution Level Classification: Based on ASTM D7463 and ASTM D7978 methods, it is divided into three levels: negligible contamination, general contamination and severe contamination
- Detection Method: Microbial detection is carried out using the HY-LITE method or thixotropic gel culture method
- Control Measures: When microbial contamination is found, facilities and equipment should be cleaned promptly to prevent the spread of contamination
Recommendations and Precautions for Standard Implementation
Quality Management System Construction
It is recommended that fuel supply companies establish a complete quality management system:
- Document Record System: Establish complete quality control records and keep them for at least 3 years
- Personnel Training System: Regularly conduct standard training and assessment for quality management and operating personnel
- Emergency Response Procedures: Develop emergency response procedures related to fuel quality and conduct regular drills
- Supplier Management: Regularly evaluate fuel suppliers to ensure quality at the source
Key Points for Technical Implementation
During the implementation of the standard, the following technical points should be focused on:
- Immersion and Flushing of Facilities and Equipment: Newly constructed and renovated facilities and equipment that has been out of service for more than 6 months must be immersed and flushed in accordance with the requirements of Appendix A
- Filter Maintenance and Management: Maintain, monitor and inspect filtration equipment in strict accordance with the requirements of Appendix C
- Container cleaning assessment: Regularly conduct container cleaning inspections and cleanliness assessments as required by Appendix B
- Measurement equipment management: Regularly calibrate and verify measurement equipment to ensure accurate and reliable measurement results
Compliance management
To ensure compliance with the standard implementation, it is recommended that:
- Internal audit system: Establish a regular internal quality audit system to promptly identify and correct problems
- Continuous improvement mechanism: Continuously improve quality control processes based on audit results and actual operating experience
- Supervisory cooperation: Actively cooperate with the supervision and inspection of the civil aviation regulatory authorities and promptly rectify any problems found
- Technology update: Pay attention to industry technology development and promptly update facilities, equipment and inspection methods
Application case analysis
Taking a general airport fuel supply company as an example, the implementation of MH/T After 6134-2025:
- Decrease in quality incident rate: Through strict acceptance inspection and storage management, quality-related incidents have been reduced by 60%
- Improved operational efficiency: Standardized operating procedures have reduced fueling operation time by 15%
- Increased customer satisfaction: A complete quality traceability system has strengthened the trust of airline customers
- Optimized cost control: Reasonable filter replacement cycles and fuel recovery measures have reduced operating costs
The implementation of MH/T 6134-2025 will significantly improve the quality control level of aviation fuel at general aviation airports, providing a strong guarantee for the safe operation of general aviation. All fuel supply companies should carefully study the content of the standard, establish and improve their quality control systems, and ensure the effective implementation of the standard requirements.
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