Clear Blue Pregnancy Test Evaporation Line - An evaporation line is a very very faint line on a pregnancy test that is almost invisible, displayed in the position of the test line. For example, an evaporation line on a. When urine sits on the test for too long past the reaction time, itโll dilute and dry out, causing an evaporation line, tetrokalashvili says. On a blue dye test, the line can appear as gray or even a lighter shade of blue. For some reason, anecdotally, many mamas find that blue dye tests are more prone to. Understand the difference between a faint line on a pregnancy test that means you're pregnant and an evap (evaporation) line that is colorless and does not indicate a. Pregnancy tests show evaporation lines due to evaporating urine in the pregnancy test window. There will be a very faint line on a home pregnancy test when the urine on it begins to dry up. A faint positive line on a pregnancy test is colored, as opposed to an evaporation line on clear blue. Never mistake a light pink or blue line for an evaporation line if it is grayish.
An evaporation line is a very very faint line on a pregnancy test that is almost invisible, displayed in the position of the test line. For example, an evaporation line on a. When urine sits on the test for too long past the reaction time, itโll dilute and dry out, causing an evaporation line, tetrokalashvili says. On a blue dye test, the line can appear as gray or even a lighter shade of blue. For some reason, anecdotally, many mamas find that blue dye tests are more prone to.