低温容器是储存和运输液态氢、液态氧、液态氮等低温液体的重要设备。为了确保低温容器的安全和可靠性，必须对其绝缘性能进行测试和评估。BS ISO 21014:2019+A1:2022是一项关于低温容器绝缘性能测试的标准，旨在规定低温容器绝缘性能的测试方法和评估标准。

该标准规定了低温容器绝缘性能测试的基本原则和要求。测试应在标准大气压下进行，测试温度应符合低温容器的设计温度。测试时应记录低温容器内外壁温度、环境温度、压力等参数，并按照标准要求进行数据处理和分析。测试结果应包括绝热性能指标、温度分布、压力变化等信息。

该标准还规定了低温容器绝缘性能评估的方法和标准。评估应根据测试结果进行，包括绝热性能指标、温度分布、压力变化等方面。评估结果应符合标准要求，并应记录在低温容器的技术文件中。

BS ISO 21014:2019+A1:2022的实施可以有效提高低温容器的安全性和可靠性，为低温液体的储存和运输提供保障。同时，该标准的实施也有助于推动低温容器行业的标准化和规范化发展。

相关标准
- BS EN 1251-1:1996+A1:2008 Cryogenic vessels. Large transportable vacuum-insulated vessels. Design, fabrication, inspection and testing
- BS EN 14620-2:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C. Part 2. Concrete components
- BS EN 14620-3:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C. Part 3. Concrete/steel composite tanks
- BS EN 14620-4:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C. Part 4. Concrete/steel/concrete tanks
- BS EN 14620-5:2006 Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C. Part 5. In-ground tanks