BS ISO 19235:2015规定了设备的基本参数、要求和测试方法 模拟石英钟（以下简称“石英钟”）的计时精度。本国际标准适用于使用振荡器的模拟石英表和挂钟 频率为32 768 Hz，标称电压为DC 1.5 V。模拟石英钟的移动可参考 去吧。本国际标准不适用于以下石英钟:用于特殊应用的时钟，如飞机、船舶、车辆和设施中使用的时钟；与其他产品结合的时钟；无线电同步时间的时钟。交叉引用:ISO 6426-2购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS ISO 19235:2015 specifies the basic parameters, requirements, and testing methods of timing accuracy for analogue quartz clocks, hereinafter referred to as "the quartz clock".This International Standard applies to analogue quartz table and wall clocks which the oscillator frequency is 32 768 Hz and the nominal voltage is DC 1,5 V. Analogue quartz clock movements can refer to it.This International Standard does not apply to the following quartz clocks:clocks for particular applications such as clocks used in aircraft, ship, vehicle, and facilities;clocks incorporated into other products;clocks in which time is radio-synchronized.Cross References:ISO 6426-2All current amendments available at time of purchase are included with the purchase of this document.