4.Exposed to the central part of the surface of the sample 50 x 50mm range, radiation at the center of the deviation is not more than 2%.
4.Exposed ກັບພາກກາງຂອງພື້ນຜິວຂອງຕົວຢ່າງ 50 ລະດັບ 50mm x ໄດ້, radiation ຢູ່ໃຈກາງຂອງ deviation, ບໍ່ແມ່ນການຫຼາຍກ່ວາ 2%.