Ade sape-2 dah post ni? cuma untuk info~ sapa rajin buat lah.. hahahaha...
Source :
http://www.e-cigarette-forum.com/forum/diy...aps-method.htmlThe Reason:
Since there are no true production standards, and people like to mix their own liquids, this will allow you to test liquid for nicotine levels easily.
The Kit:
.12N Sulfuric Acid
Bromothymol Blue
Distilled Water
10mL Graduated Cylinder, .1mL markings is optimum
A paper towel
The Test:
Pour some distilled water in the cylinder, swirl it, dump it out.
Repeat step 1.
Repeat step 1.
Dry cylinder with a sliver of paper towel.
Put 1mL of eLiquid in the cylinder
Add 2 drops blue
Fill cylinder to the 3mL mark with distilled water
Swirl to mix
Add a drop of acid
Swirl to mix
If the color of the solution didn't turn pale yellow, repeat 8-9
Measure the final volume
Subtract 3 from the number you read in step 11
Multiply the result of step 12 by 19.4712
The resulting number is the mg/mL