public void Validate()
 {
     When.ValidateRequired("When");
     Value.ValidateRequired("Value");
     MeasurementType.ValidateOptional("MeasurementType");
     OutsideOperatingTemperature.ValidateOptional("OutsideOperatingTemperature");
     IsControlTest.ValidateOptional("IsControlTest");
     Normalcy.ValidateOptional("Normalcy");
     MeasurementContext.ValidateOptional("MeasurementContext");
 }