This home kit allows you to test the level of nicotine as a base without flavors. The margin of error is about 10%.

How to use the kit:

1

- Put 30 drops unflavoured eliquid to be tested in the glass tube by using 1ml pipette supplied

2

- Put 2 drops of bromothymol blue

3

- Shake.....the solution will turn to blue

4

- Take 1 ml of dilute sulfuric acid from the bottle by using a pipette clean 1ml supplied.

5

-Add a drop of dilute sulfuric acid and shake the solution each drop added until it assumes a light yellow color.

1 drop of sulfuric acid added = 1mg/ml of nicotine


http://www.eliquidproducer.com/unflavoured_eliquid.html