How do you tell the difference between an Evap line and a faint positive?

Are Evap Lines common?

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M H K S·Мама четверых детей

An evap line is colorless, a true positive always has a hint of color too it.

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Ashley Nicole Williams·Многодетная мама (6 детей)

if the line has color and pops up within the time frame its a faint positive but i always retest to be sure

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стикер
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