检测依据标准 Test Basis Standards：
QB/T 1905-2012
型式检验检测项目 Type Testing Items：
工作可靠性、平均工作电流、瞬时日差、止秒功能、封装 焊接质量、金属件铆合质量、印制板尺寸极限偏差及形状公差、工作温度、电压范围、平均温度系数、电压系数、输出脉冲幅值，幅值相对误差、耐湿度变化性能、防震性能、耐振动性能、耐湿性能、外观。
Operational Reliability, Average Operating Current, Instantaneous Daily Rate, Hacking Function (Seconds Stop Mechanism), Encapsulation Welding Quality, Metal Component Riveting Quality, PCB Dimensional Limit Deviations & Geometric Tolerances, Operating Temperature Range, Operating Voltage Range, Mean Temperature Coefficient, Voltage Coefficient, Output Pulse Amplitude, Pulse Amplitude Relative Error, Humidity Cycling Resistance, Shock Resistance, Vibration Resistance, Moisture Resistance, Appearance Inspection.
检验周期 Inspection Cycle:
型式检验周期一般为一年一次，发生下列情况之一时应时进型式检验：
a) 产品停产一个生产周期以上又恢复生产时；
b) 产品的设计、结构、工艺、材料有较大变动时；
c) 国家质量监督机构提出进行型式检验要求时。
Type testing shall generally be conducted annually. Type testing must be initiated immediately upon occurrence of any of the following circumstances:
a) When production resumes after being halted for more than one full production cycle;
b) When significant modifications are made to the product's design, structure, manufacturing process, or materials;
c) When formally mandated by the national quality supervision authority.
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