Vapor Fahr. Reproduced with permission of American Society of Mechanical Engineers. The ASME Steam Tables, 1967 edition, is no longer in print. new industrial formulation of the properties of water and steam was created by the International Association for Properties of Water and Steam.
A common misconception with ovulation tests is that they tell you specifically when you are ovulating, which sadly isnât true. Ovulation predictor kits actually work by testing for the luteinizing hormone (LH) which is the indicator of your body preparing to release a matured egg.
Urine-based ovulation predictor kits (OPKs) detect the surge in luteinising hormone (LH) just before you ovulate. They look similar and work in a similar way to home pregnancy tests by detecting an increased level of a hormone in your urine.