Voltage is analogous to pressure, so the voltage rating is the same thing as the pressure rating on a pressurized tank. If you apply too much pressure, both a capacitor and a tank will explode.
Speaking roughly, normal levels of thyroid-stimulating hormone (TSH) are in the range of 0.4 to 4.0 mIU/L. However, each laboratory and test manufacturer identifies its own normal TSH range. This is based on the test, the equipment being used, and the patients being tested.
Normal Reference Ranges for Thyroid Lab Tests. The diagnosis of a hyperactive or hypoactive thyroid is confirmed by a physical examination and laboratory tests. The thyroid test measures the levels of T3, T4, and TSH. Learn about these hormones and know what the normal thyroid lab test reference range is. 1  slide 1 of 4. The Thyroid Gland The thyroid gland is part of the endocrine system and is located in the front of the neck. 2  slide 2 of 4.