在使用和检定台式血压计时，经常出现汞溢出、汞柱不回零、灵敏度差、汞柱断续。翻泡以及漏气等故障，严重影响血压计的正常使用，产生原因和排除方法归纳如下：1．汞溢出这是使用中常见的现象。原因是：①使用不当，加压过大，使汞从空气过滤器中溢出；或者先加压，再开关，由 In the use and verification of desktop sphygmomanometer, mercury overflow often occurs, mercury does not return to zero, sensitivity, mercury intermittent. Blistering and leakage and other failures, seriously affecting the normal use of sphygmomanometer, causes and elimination methods are summarized as follows: 1. Mercury spills This is a common phenomenon in use. The reason is: ① improper use, the pressure is too large, so that mercury overflow from the air filter; or first pressure, and then switch from