MH/T 6096-2013 in English
VALIDProficiency testing procedures for commercial aviation oil testing laboratory
- Issued on:2013-08-26
- Implemented on:2013-11-01
- File Format:PDF
- Delivery:Via email within 2~4 business days
$368.00
| Standard No: | MH/T 6096-2013 |
| Document status: | VALID |
| Title in English: | Proficiency testing procedures for commercial aviation oil testing laboratory |
| Title in Chinese: | 民用航空油料检测实验室能力验证程序 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 2~4 business days |
| Issued on: | 2013-08-26 |
| Implemented on: | 2013-11-01 |
| ICS Classification: | 49.100-Ground service and maintenance equipment |
| Chinese Classification: | V56-AGS system and equipment |
| Professional Classification: | MH-Civil Aviation |
| Related Keywords: | certain aviation fuel laboratory
commercial aviation oil aviation fuel aviation fuel conductivity test proficiency verification |
Introduction
Analysis of the core content of the standard
This standard systematically specifies the complete technical framework for the proficiency verification of aviation fuel testing laboratories, with a focus on the following elements:
| Core modules | Technical requirements | Implementation points |
|---|---|---|
| Qualifications of verification providers | Requires authorization by the CNCA or management agency | Requires comparison organization capabilities and sample acquisition channels |
| Sample preparation | Complies with ISO 13528 statistical methods | Special container requirements (such as epoxy resin coated containers) |
| Uniformity test | Sampling ≥ 10% and repeated measurement 2 times | Use variance analysis to calculate Ss value |
Key technical implementation points
1. Sample uniformity verification
Complete step-by-step calculation through formula group (1)-(11), key judgment condition: Ss≤0.3σ. In an actual case, when a certain aviation fuel laboratory tested the thermal oxidation stability sample, it measured Ss=0.12, which met the requirement of σ=0.5.
2. Application of robust statistical methods
Use standardized interquartile range (NormIQR) to handle outliers:
- Calculation steps: lower quartile (QL) → upper quartile (QU) → IQR → NormIQR (Formula 18-23)
- Typical scenario: After removing 3 outliers in the aviation fuel conductivity test, NormIQR dropped from 1.8 to 0.9
Capability Assessment System
| Z ratio score | Conclusion judgment | Handling measures |
|---|---|---|
| |Z|≤2 | Satisfied | Maintain the status quo |
| 2<|Z|<3 | Suspicious | Warning review |
| |Z|≥3 | Unqualified | Corrective measures |
Implementation Case: Double Sample Comparison
In a water separation index verification:
- Standardized sum S=(A+B)/√2=85.6
- Median value Smed=84.2, σs=2.1
- Calculated ZB=0.67 (satisfactory)
Background of Standard Evolution
This standard was first released in 2013, with the following major technical breakthroughs:
- Introduction of ISO 13528 international statistical methods
- Clear specification of aviation fuel special testing containers
- Establishment of a three-level capability evaluation system
Compared with earlier industry practices, the current version adds robust statistics and double sample comparison methods, significantly improving the reliability of the results.
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