MH/T 6121-2020 in English
VALIDDischarge vehicle for aviation fuel supply system
- Issued on:2020-07-20
- Implemented on:2020-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$262.00
| Standard No: | MH/T 6121-2020 |
| Document status: | VALID |
| Title in English: | Discharge vehicle for aviation fuel supply system |
| Title in Chinese: | 航空燃油供应系统排放作业车 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-07-20 |
| Implemented on: | 2020-10-01 |
| ICS Classification: | 49.100-Ground service and maintenance equipment |
| Chinese Classification: | V57-Special vehicles |
| Professional Classification: | MH-Civil Aviation |
| Related Keywords: | aviation fuel supply system introduction interpretation
aviation fuel emission operation vehicles airport fuel supply system aviation fuel pipeline emission system |
| Related Topics: | mh/t
mh and t aviation fuel work vehicle closed circuit sampler workstation emissions Feed industry emissions |
本标准规定了航空燃油供应系统排放作业车的术语和定义、技术要求、试验方法、检验规则、标识、使用说明书、包装、运输和贮存。
本标准适用于航空燃油供应系统油料排放作业车（以下简称排放作业车）的设计、制造与使用。
Introduction
Interpretation of the core content of the standard
MH/T 6121-2020, as a mandatory standard for the civil aviation industry, systematically regulates the design and manufacturing requirements of aviation fuel emission operation vehicles for the first time. This standard applies to special vehicles responsible for high-point exhaust, low-point drainage and impurity recovery in the airport fuel supply system, and is of great significance to ensuring the quality and safety of aviation fuel.
Analysis of key technical requirements
| System module | Core indicators | Test methods |
|---|---|---|
| Oil tank system | 36kPa static pressure maintenance for 30min without leakage Residual oil volume ≥1% rated capacity | X-ray flaw detection (longitudinal weld 15%) |
| Pipeline emission system | 1.25 times rated pressure test Filter ≥40 mesh | 5 minutes pressure maintenance test |
| Safety protection | Resistance between two points ≤ 5Ω Interlocking device mandatory configuration | Multimeter detection |
Innovative technical specifications
For the first time, the standard clearly requires that emission operation vehicles have a self-closing quick coupling and a power take-off interlocking function. The vehicle cannot move when the coupling is not reset (Article 4.2.5). At the same time, it is stipulated that:
- Hose assembly resistance ≤1MΩ (Article 4.2.4)
- Operation noise main operating surface ≤90dB(A) (Article 4.4.2)
- Environmental adaptability -40℃~60℃ (Article 4.14)
Implementation suggestions
The procurement process should focus on checking:
- Whether the oil tank wave baffle complies with GB 18564.1
- Whether the hydraulic system is equipped with an anti-loosening overflow valve
- Whether a dual-way fire extinguisher (≥8kg×2) is equipped
Attention should be paid during the operation and maintenance stage:
- Test the resistance value of the static conductive mopping belt every month
- Clean the 40-mesh filter ball valve every quarter
- Annual pressure test needs to reach 1.25 times the rated value
Standard Evolution Analysis
Compared with early industry practices, the 2020 version has the following major improvements:
| Improvement direction | Old specification | New standard |
|---|---|---|
| Material compatibility | Unspecified | Hot-dip tin/epoxy resin treatment is required (Article 4.10.3) |
| Intelligent monitoring | No requirement | It is recommended to configure data acquisition and transmission function (Article 4.1.9) |
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