code: def isBelowLowerDetectionLimit(self):
          
          if self.isLowerDetectionLimit():
              return True
  
          result = self.getResult()
          if result and str(result).strip().startswith(LDL):
              return True
  
          if api.is_floatable(result):
              return api.to_float(result) < self.getLowerDetectionLimit()
  
          return False
docs: Returns True if the result is below the Lower Detection Limit or
          if Lower Detection Limit has been manually set