Biofuelson developed this test as a firewall. If the biodiesel pass this test you can send it to further analyse the biodiesel.The field-test is cheap and easy to use when compare it with other analyse systems.

Biofuelson will not be responsible for any guarantees at all,or any dispute between parties or third parties.

Step 1

First add Field-test to 50% (bottle volume)Then add biodiesel on top ,please take note to leave a small amount of air in bottle at top.This will make it easy to mix the two liquits.Here I took two sample to demonstrate  the process.

Step 2

Mix the sample (field-test & Biodiesel gently)Do not mix to mutch.The best is take the bottle from down up to head (10 times) Turn the bottle in the process up and down when moving hands from down to head.

Step 3

After shake it gently 10 times let it stand for 10 min.In the10 minutes time ,see colour change ,amount of bubbles burst and top layer colour.

If colour change like in sample at left the biodiesel is acitic.The colour must stay pink to light pink.

Bubbles must burst and no bubbles left in 10 min time.If any bubbles is left the chemical reaction was not completed.

The layer on top must be clear, and a clear line between the layers is a must.

Step 4

This is after five minutes.

There is still bubbles, but remember there is still 5 min to go.

Sometimes the bubbles is all burst in 5 min.The faster the better.

Test 5

After 10 min still bubbles.

Both these samples will not pass.Left is acetic and chemical reaction is not completed (Mono and di glycerides in biodiesel)

Sample on right also have some mono and di glycerides in Biodiesel.

Top layer is clean ,so no water in biodiesel and also no catalyst in biodiesel.

After 10 minutes the sample must look like the one on right ,but without any bubbles.
Clear on top ,no bubbles ,light pink.

Biofuelson can be contact for prise on the field test.