液晶数字式石英秒表型式检验Type testing for LCD digital quartz stopwatches

检测依据标准 Test Basis Standards：

GB/T 22778-2021

型式检验检测项目 Type Testing Items：

使用可靠性、时段测量精度、瞬时日差、工作温度、电压范围、平均温度系数、电压系数、耐湿性能、耐振动性能、防震性能、防水性能、电池更换周期、按键耐疲劳性能、耐光照性能、抗静电性能、外观。

Operational Reliability, Time Interval Measurement Accuracy, Instantaneous Daily Rate, Operating Temperature Range, Operating Voltage Range, Mean Temperature Coefficient, Voltage Coefficient, Humidity Resistance, Vibration Resistance, Shock Resistance, Water Resistance, Battery Replacement Cycle, Button Fatigue Resistance (按键耐久性), Light Exposure Resistance, Electrostatic Discharge (ESD) Immunity, Appearance Compliance.

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进行型式检验：

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 once annually. Type testing must be performed under 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 required by the national quality supervision authority.

液晶数字式石英秒表型式检验Type testing for LCD digital quartz stopwatches

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