GB/T 34248-2017 in English
VALIDPerformance test method of three-way catalyst
- Issued on:2017-09-07
- Implemented on:2018-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$107.00
《GB/T 34248-2017汽车尾气三效催化剂性能试验方法》由TC63(全国化学标准化技术委员会)归口,主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of standard formulation
GB/T 34248-2017 "Test Method for Performance of Three-Way Catalyst for Automobile Exhaust" is a national standard formulated for the performance test of three-way catalyst for gasoline vehicle exhaust purification. The formulation of this standard is based on increasingly stringent environmental protection requirements, and aims to ensure the efficiency and reliability of three-way catalysts in practical applications through scientific and standardized test methods.
2. Comparative analysis of standard frameworks
| Standard dimensions | GB/T 34248—2017 | Comparison of internationally accepted standards |
|---|---|---|
| Scope of application | Performance test of three-way catalyst for gasoline vehicles | Extended application covering diesel vehicles and other types of vehicles |
| Test parameters | Ignition temperature, air-fuel ratio, oxygen storage capacity | Including additional indicators such as catalytic conversion efficiency and durability |
| Test method | Redox reaction test based on the theoretical air-fuel ratio of 14.63 | Combined with dynamic loading and transient response analysis |
3. Recommendations for standard implementation
Equipment selection and calibration:Key instruments such as mass flow meters and exhaust gas analyzers used in the test device must be calibrated and verified in strict accordance with standard requirements to ensure that the measurement accuracy is within the allowable error range.
Operation process optimization:It is recommended to combine the automated control system to monitor and adjust the reactor temperature and mixed gas components in real time during the actual test process to improve test efficiency and data accuracy.
Data analysis and reporting:For key indicators such as the collected conversion rate and ignition temperature, a complete data analysis model is established to generate a standardized test report and provide improvement suggestions.

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