ADIS16460正常的工作温度是−25°C 到 +85°C,为什么测试的时候有几十个是-10°C ? ADIS16460,According to datasheet, Operating temperature range: −25°C to +85°C,why some showing -10°C when we test?

ADIS16460,According to datasheet, Operating temperature range: −25°C to +85°C,why some showing -10°C when we test?