AllAmericanRoughNeck
Banned
Anyone that measures out oil in syringes or beakers is just plain stupid, and
it isn't accurate. This is why you buy a scale, and measure in grams.
MESO-Rx
Anabolic Steroids
Showing off My first steroid brew without hot plate, magnetic stirrer, bottle top filter - MAST P
- Thread starter carn1t9
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Anyone that measures out oil in syringes or beakers is just plain stupid, and
it isn't accurate. This is why you buy a scale, and measure in grams.
D
Deleted member 127229
Guest
I guess all the pharmaceutical companies are stupid, Because that’s how they measure cottonseed oil.
Why the fuck would you measure oil with a scale?
AllAmericanRoughNeck
Banned
You stupid fuck. You measure EVERYTHING with a scale. You weigh the flask, put the oil in flask, convert milliliter to grams.. You have to know the density of the oil, density of BB, BA, and density of TE, TC or whatever other raw you're using. And you fucks wonder why your shit is underdosed, just like all the other shit labs. Its basic fucking math figuring this all out..
You obviously don't know chemistry. Being accurate is using grams, not mL.
mL is +/- 5% on every flask, beaker, etc. Now go play in the sandbox, 5 scoops of donkey shit.
AllAmericanRoughNeck
Banned
And you know this how? You personally talked to the 100s of UG labs that are out there? Or just the idiot trolls posting in this thread.. One guy on here says to measure oil in a syringe, LMFAO! I suppose he wants everyone to use a 1/2ml insulin syringe too, clown!
Yes. I know how ugl brew. Surprise Surprise
AllAmericanRoughNeck
Banned
I highly doubt it.. carry on master brewer.. lol
Another keyboard warrior. Dude you aren't able to tell your pov in decent words that makes sense.
I am not a master brewer.
A 10 years kids can brew without a problem.Can do this job from a-z from getting raws to all the necessary that are required for this job.
Is not a big deal that so I can't be called a master brewer like you can't call a master walker every person in the world because everyone can walk.
Is simple people complicate things to sound smart.
Zebedee
Well-known Member
It’s perfectly fine to measure liquids by weight, as long as you’ve accurately established the density (g/ml) of whatever liquid you’re weighing beforehand. I do it all the time whilst making eliquid for both myself & family / friends.
Not only do you avoid hub / transfer loss from syringes etc, it’s quicker, easier & the temperature of the liquid becomes irrelevant & won’t affect affect measuring accuracy (via expansion of liquid as temperature rises).
It’s also a really easy way of checking the accuracy of calibrated beakers etc, as water has a density of 1g/ml (at room temp).
Zebedee
Well-known Member
True, but when making oral suspensions, pretty much no one on forums “wets” their API with vehicle in a pestle & mortar (which is how it’s supposed to be done) & just follows the forum advice of “add raws to Ora & shake bro”, which is a pretty shit method & will almost certainly lead to clumping (& this inconsistent dosing), even if you can’t see it.
Agree with your general sentiments about guys being obsessed by over complicating brewing, but I personally don’t feel weighing carriers / solvents is over complication. If anything I think it simplifies it.
lovedajuice
New Member
OP where the vials pre-sterilized? How did you transfer the oil to the vials without using a laminar flow hood? I mean how did you keep it sterile?
K
klokke23
Guest
I've made every oral there is with humco many times for friends. There's no clumping. Ralox clumps but that's the only one I've seen
AllAmericanRoughNeck
Banned
AllAmericanRoughNeck
Banned
You don't need a laminar flow hood to transfer oil to vials.. If any lab says this, they are liars..
lovedajuice
New Member
So you just transfer from the media bottle with a syringe in a normal environment?
BTW liquids cannot be measured on a scale, it's a volume based measurement not a weight based one, only distilled water has a 1:1 liter/kg volume/weight ratio, you measure liquids using a calibrated volumetric flask or a burette.
AllAmericanRoughNeck
Banned
Are you a fucking idiot too? Sounds like it. And Yes you can weigh liquids on scale. You need know the density for one. Then you need to convert milliliter to grams. It is basic fucking math..
You think the labs on here are using a flow hood? lol..
HB_22
Well-known Member
He does.
@AllAmericanRoughNeck
Yeah it's pretty easy to find the density of most things. Such as pure sesame oil which is 0.95 g/cm³
Weighing liquids is a great way to get a precise amount of a liquid. On the other hand when making a solution it's not very helpful unless you know how the mass of the solute will impact the volume of the solution as it is dissolved.
When one adds a solute to a solvent, there is often a change in the average distance between the solvent molecules. This change is not easy to predict, and may be considerable depending on the nature of both solute and solvent.
Let's say you want 100 mL of 250mg/mL test cyp. Even though the density of test cyp is 1.1±0.1 g/cm^3, the volume of the solution will not increase by 1cm^3 per 1.1g when the solute goes into solution.
So adding the correct amount of ba, bb, and 25.0g of test cyp then adding the requisite oil in a calibrated graduated cylinder until in reaches 100ml you'll get pretty fucking close to spec.
If you wanted to do this in a lab you could repeat this process 10 times while logging the masses of all of the components of the solution so you could calculate the mean relationship between solute and solvent. This would be great to know if you wanted to expand to brewing liters.
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lovedajuice
New Member
It seems like you are a fucking idiot who doesn't get it
