Whether the high and low temperature low pressure test chamber is qualified, the test chamber temperature and low air pressure need to be tested, but the high and low temperature low pressure test chamber has a wide range of temperature and low pressure. How to select the high and low temperature low pressure test chamber temperature and low air pressure test during inspection What is the nominal value? Temperature nominal value selection: Within the adjustable range of equipment temperature, the representative temperature nominal values ​​specified in GB/T2423.25 and GB/T2423.26 standards are generally selected. Low temperature: -65 ° C, -55 ° C, -40 ° C, -25 ° C, -10 ° C, -5 ° C, and the like. High temperature: +30 ° C, +40 ° C, +55 ° C, +70 ° C, +85 ° C, +100 ° C, +125 ° C, +155 ° C, +175 ° C, +200 ° C, and the like. Other temperature nominal values ​​may also be selected depending on the needs of the test and inspection. Low pressure nominal value selection: Within the adjustable range of equipment temperature, generally select the representative low pressure nominal values ​​specified in GB/T2423.25 and GB/T2423.26 standards: 1kPa, 2kPa, 4kPa, 8kPa, 15kPa, 25kPa, 40kPa, 55kPa, 61.5kPa, 70kPa, 79.5kPa, 84kPa, etc. Other low pressure nominal values ​​may also be selected depending on the needs of the test and inspection. Note: The nominal value used to mark or identify the appropriate approximation of a component, device or device is marked according to a series of standards established by the State and is not arbitrarily calibrated by the manufacturer. 6 Sides Grater,Multi Purpose Grater,Grater For Cheese Vegetables,Multi-Purpose 6 Sides Grater Yangjiang Homelife Industry & Trading Co., Ltd. , https://www.kitchenutensil.de
How to choose the high and low temperature low pressure test chamber temperature and low pressure test nominal value