Dual energy X-ray absorptiometry, DEXA, is one of the more accurate methods of measuring body fat. Based on the principle that you can measure the density of bones by the amount of photon energy absorbed, this method measures bone mass, lean muscle mass and fat tissue mass.
The most accurate at-home body fat test available is the DEXA scan, which uses dual-energy X-ray absorptiometry to measure body composition.
The most accurate method for conducting a body fat test is through Dual-Energy X-ray Absorptiometry (DEXA) scanning, which provides precise measurements of body composition.
The most accurate way to test body fat is through methods like DEXA scans, hydrostatic weighing, or Bod Pod measurements, which provide precise measurements of body composition.
A simple banded tape measure is one of the easiest and most cost effective ways to measure body fat percentage. Take several measurements for accuracy, then average them out for your total percent.
A person's maximum oxygyn update (VO2 max) test is the most accurate measure of cardiovascular fitness, according to the book Concepts of Fitness and Wellness by Corbin, Welk, Corbin and Welk, page 115.
There is an online body fat test available at http://www.healthcentral.com/cholesterol/home-body-fat-test-2774-143.html. Although this is not as accurate as a body fat analyzer, it should give you a sense of where you are at body fat percentage wise.
Battery load test
Most are pretty accurate, but get one from the doctor and it will be truly accurate.
You can use a ruler or a tape measure to measure the length of a test tube. Simply place the test tube on a flat surface and align the ruler or tape measure along its length to get an accurate measurement.
The most accurate and reliable caffeine test kit available on the market is the High Performance Liquid Chromatography (HPLC) test kit.
Only a blood test can measure BAC. A breath tester can only ESTIMATE the BAC.
I recommend the Clearblue Digital Pregnancy Test as one of the most accurate options available on the market.