GB/T 33291-2016 in English

1. Analysis of the background of standard formulation and technological evolution

With the rapid development of hydrogen energy technology, the importance of hydrides as hydrogen storage materials in the energy field has become increasingly prominent. This standard aims to provide a scientific and unified test method for the absorption and desorption characteristics of hydrogen by hydrides, filling the gap in this field at home and abroad.

2. Composition and technical requirements of the test device

The test device consists of a pressure sensor, a pressure accumulator, a constant temperature system, a temperature sensor, a sample chamber, a valve, a vacuum gauge and a data acquisition device. The following are the technical requirements for key components:

• Pressure sensor: The accuracy is not less than 0.5‰, and the test value at the highest working pressure has no less than 5 significant digits.
• System leakage rate: The pressure drop does not exceed 0.1% in 24 hours at the highest working pressure.
• Connecting pipes: Use internally polished stainless steel pipes in accordance with GB4962-2008.
• Temperature control: The fluctuation of the test system ambient temperature and the sample chamber working temperature does not exceed ±0.5K.

3. Comparative Analysis of Standard Frameworks

This standard is in line with international standards in terms of test methods, device composition and technical requirements, and has the following characteristics:

4. Implementation Suggestions

To ensure the effective implementation of the standard, it is recommended to take the following measures:

• Equipment calibration: Calibrate the test device regularly to ensure measurement accuracy.
• Staff training: Organize professional training to improve the technical level of operators.
• Data management: Establish a unified data management system to facilitate analysis and sharing.