GB/T 37844-2019 in English
VALIDSpace materials science experiment—Preparation specification for solid experiment sample
- Issued on:2019-08-30
- Implemented on:2019-12-01
- File Format:PDF
- Delivery:Within 1 day
$125.00
《GB/T 37844-2019空间材料科学实验 固体实验样品制备规范》由TC312（全国空间科学及其应用标准化技术委员会）归口，主管部门为中国科学院。
Introduction
In-depth interpretation of the solid sample preparation specification for space material science experiments
1. Background and significance of standard formulation
With the in-depth development of space science research, the importance of material science in the aerospace field has become increasingly prominent. This standard is managed by the National Technical Committee for Space Science and Its Application Standardization, and aims to standardize the ground preparation process of solid experimental samples to ensure the accuracy and repeatability of experimental data.
2. Comparative analysis of standard frameworks
| Standard dimensions | GB/T 37844—2019 | Reference GB/T 37469—2019 |
|---|---|---|
| Preparation process | Ground preparation→Status inspection→Material preparation→Sample inspection→Packaging→Final inspection | Experimental design→Sample management→Data recording |
| Key requirements | Raw material verification, same batch preparation, process tracking | Sample identification, packaging inspection, environmental control |
| Technical indicators | Non-toxic and harmless, chemical stability, and resistance to mechanical environment | X-ray detection, sensor testing, airtightness inspection |
3. Analysis of core technical requirements
Raw material preparation and inspection
According to GB/T 37844—2019, the preparation of material samples must meet the following conditions:
- Raw materials and auxiliary materials must be checked for type, purity and performance indicators;
- Experimental samples from the same batch must come from the same batch of products from the same manufacturer.
Packaging Technical Requirements
During the sample packaging process, special attention should be paid to:
- The physical and chemical stability of the packaging material;
- Ensure that the gap between the crucible and the sample is appropriate;
- The internal pressure value should be recorded during the vacuum or gas filling operation.
4. Implementation Suggestions and Precautions
Quality Control
It is recommended to implement the following during the sample preparation process:
- Dual-post and dual-inspection system;
- Record of key process parameters;
- Regular quality audits.
Environmental Control
The laboratory needs to meet the following requirements:
- Strict monitoring of temperature, humidity and cleanliness;
- The establishment of dust-free operating areas.
5. Practical Application Case Analysis
When a certain aerospace research institute adopted this standard to conduct space material science experiments, it significantly improved the sample qualification rate by implementing a double-post double-inspection system and strictly controlling the packaging environment, ensuring the smooth progress of subsequent experiments.
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