在血压计检定规程技术要求中对零位误差的要求是血压计的贮汞瓶与大气相通后，汞柱凸月面顶端应处于零位刻线相切的位置，允许误差为。0．ZkPa。我们在实际检修中经常会遇到贮汞瓶需要更换或汞欠少需要添加，在操作中接近零位时需要添加少量的汞。一般采用的方法是将玻璃管取出 In the sphygmomanometer test procedure technical requirements of the zero error is the sphygmomanometer mercury bottle connected to the atmosphere, the top surface of mercury convex lunar surface should be zero position tangent line, the allowable error is. 0. ZkPa. We often encounter during actual maintenance mercury bottles need to be replaced or less need to add mercury, close to zero in the operation need to add a small amount of mercury. The general method is to take out the glass tube