Its 7 ml of the P80. And no using EO or PEG, this is a water based conversion with no oil.
I think your wrong dude, the above recipe if basskillers recipe for making 10ml
This is how iv picked it up (since basskiller is sh1t at going into detail lol sorry)
Take some distilled water and add 2%ba, he then says 2/10 ba/water...
But 2/10 is 20% ba 2ml/10ml,... He should have said 0.2/10 (2%ba to 10ml water.
So anyway 2% ba+ distilled water is what you have so far,
Then ad ps80.... if you have 2% ba 0.2ml and 9ml distilled water and add 0.8ml ps80, this puts the ps80 at 12.5%.
So imo that the solution so far 2% ba, 12.5% ps80, 9ml dis water making 10ml.
He then says take 7ml of this solution and filter into a sterilised vial..... ( I'm guessing Leaving 3ml excess for waste in the filter etc and to to up the solution at the end which again he doesn't say, neither does he state ps80 % or ml.)
So you have 7ml of that solution then add 1g test+ 2ml guaiacol, 1ml tne giving about 0.85ml displacement? Then the 3ml excess water solution is there to top it upto 10ml
The tne+guaiacol will dilute the solution bringing the ba to about 1.5-1.6% and the ps80 to about 10% (guestimate)
This is how iv worked his recipe out, could be wrong
???