Filtering finished oils

[Excel.exe]

There is a book I have in pdf format. The Art, Science and Technology of Pharmaceutical Compounding. I can upload it somewhere if anyone wants it.

please, thanks

 

[narta]

I prefer 60ml syringes. I fill the syringe up until 50ml. Can filter 18 mast E vials in less than 30 minutes by Dual Weilding Caulking guns

I have a smaller caulking gun.

Dual wielding? What is this brewing far west cowboy shit?

 

[Spaceman Spiff]

I have a smaller caulking gun.

Dual wielding? What is this brewing far west cowboy shit?

Carry it around with my holster and I have vials of tren on my ammo vest.

 

[bayleyt]

For oils?

Syringe Vent Filters Hydrophobic PTFE Autoclavable

Autoclavable hydrophobic PTFE syringe filters. Pore size: 0.2 μm. Diameter of 13mm/25mm/33mm with Luer lock. For venting and air filtration.

shop.cobetter.com

There are marginally better filters but at astronomical prices.

For Petides:

Sterile 0.2 μm PES Syringe Filters

Hydrophilic PES syringe filters with single or double-layer membrane. Pore sizes of 0.2μm. Diameter of 13mm/25mm/33mm with Luer lock. Sterile individually packed. Used for sterile filtration of protein solutions, cell culture media, and buffers.

shop.cobetter.com

The best in this category use the "Supor" PES membrane, like Pall Filters, or B Braun. They're much much more expensive ($4-5 each). I buy them at huge discounts from science gear surplus sellers (I live near a "research triangle"). Pall is the standard for compounding pharmacies. But Cobetter is 95% as good, and superior (less protein adhesion, faster flow) to many name brands, never mind generics.

I noticed these syringe filters are listed as "For venting and air filtration". Is this the appropriate filter for oils? It looks like these are similar to the other PTFE filters that cobetter sells except these are .2um instead of .22um and sterile.

I know nothing about the filters but just wanted to make sure before I place an order myself! I need some good syringe filters.

 

[bayleyt]

I have a smaller caulking gun.

Dual wielding? What is this brewing far west cowboy shit?

I used to use whatman PVDF, is PTFE better? Any suggestions for brands?

 

[narta]

Carry it around with my holster and I have vials of tren on my ammo vest.
View attachment 310889

That's my cousin Trestonito ese...

 

[Dxt25]

What caulk gun are you guys using? I cant fit a 60ml syringe in mine at all.

 

[iris]

Home brewer guide from a place that I think instructs compounding pharmacies. Its only 4 pages long, easy read. 160c for 2 hours (page 3) and then quarantine it until you get your results back for sterility and endotoxin. (per the pdf, not per me).

https://www.medisca.net/pdf/shortage-support/en-us/injection/F%20004%20571v2%20Testosterone%20100%20mg%20per%20mL%20Intramuscular%20Injection.pdf

There is a book I have in pdf format. The Art, Science and Technology of Pharmaceutical Compounding. I can upload it somewhere if anyone wants it.

View attachment 310870

Am I wrong in thinking this is about terminal heat sterilisation?
I didn't look at the whole pdf thing, but the first page you show seems like it's about that.

Is your pdf relevant to refiltering UGL oils and the topic discussed here?

You are going on about sterilising vials via heat as a final step, when here they are refiltering finished oil into a pre sterilised vial
Is this what you are saying one must do?

UncleBuns complained about his thread being derailed, earlier, and so here we go.
Yes or no?

 

[Ghoul]

I noticed these syringe filters are listed as "For venting and air filtration". Is this the appropriate filter for oils? It looks like these are similar to the other PTFE filters that cobetter sells except these are .2um instead of .22um and sterile.

I know nothing about the filters but just wanted to make sure before I place an order myself! I need some good syringe filters.

PTFE syringe filters are primarily used for devices that require pure air, but they are suitable for oils.

.2 and .22 are functionally equivalent.

 

[Anne Jectible]

That means nothing. There are people in the counter espionage business that they can't keep an eye on their teenage daughter.

Skills and confidence are two different things. Most people that are proficient in their fields have been there long enough to see all of the things that can go unexpectedly wrong and it makes them more cautious. Have you see how many people here can’t read a syringe or make simple dilutions?

 

[thecmorgan]

Here is a link to look at or download "The art, science, and technology of pharmaceutical compounding, 5th edition". I uploaded it to pcloud.

The art science and technology of pharmaceutical compounding 5th edition.pdf - Shared with pCloud

Keep, share and access your files whenever you need from wherever you are. Create a free pCloud account and make your life easier.

e.pcloud.link

 

[narta]

Most people that are proficient in their fields have been there long enough to see all of the things that can go unexpectedly wrong and it makes them more cautious.

Being cautious is always good, but lacking confidence and proclaiming to be skillful in a field simultaneously is ridiculous

 

[Anne Jectible]

Being cautious is always good, but lacking confidence and proclaiming to be skillful in a field simultaneously is ridiculous

Maybe. But I will also never regret not possessing the confidence of a mediocre man.

 

[zpped]

Maybe. But I will also never regret not possessing the confidence of a mediocre man.

It's like Dunning-Kruger in full force.

 

[Ghoul]

It's like Dunning-Kruger in full force.

The frequent misuse of that term as a crutch by amateur psychologists to dismiss opposing views is as irritating as women routinely describing any behavior they don't like as "narcissistic".

Everyone is biased toward the views they express, or they wouldn't express them.

 

[Spaceman Spiff]

Maybe. But I will also never regret not possessing the confidence of a mediocre man.

I wonder how often someone with a biochemistry degree actually uses a beaker, graduated cylinders, and raws...


It's not possessing confidence of a mediocre man but confidence in your field over people who are not specialized in it.

 

[Anne Jectible]

I wonder how often someone with a biochemistry degree actually uses a beaker, graduated cylinders, and raws...


It's not possessing confidence of a mediocre man but confidence in your field over people who are not specialized in it.

This is definitely a factor. I am not in the lab anymore. As much as I loved it I moved the the regulatory and clinical evaluation dark side cause $$$. Now when I am in the lab performing audits the things these 'kids' do make me realize how quickly lab sciences advance. Again leading to what I hope is a more accurate self-assessment.

 

[narta]

Maybe. But I will also never regret not possessing the confidence of a mediocre man.

I will always be confident in my skill set. In this particular hobby, two plus decades of successful endeavors can atest to that.

And I will always be thankful to the great individuals that tested the waters before me and passed their knowledge they gained down. People like Basskiller (rip) Animal etc.

Thank God their confidence pushed through mediocrity and extreme precautions

 

[bigtom343]

More often than not

I wonder how often someone with a biochemistry degree actually uses a beaker, graduated cylinders, and raws...

 

[Anne Jectible]

I will always be confident in my skill set. In this particular hobby, two plus decades of successful endeavors can atest to that.

And I will always be thankful to the great individuals that tested the waters before me and passed their knowledge they gained down. People like Basskiller (rip) Animal etc.

Thank God their confidence pushed through mediocrity and extreme precautions

Happy for you as well. But that doesn't change the original point that was made. I believe you are an exception to the rule. I don't believe the average person has those capabilities. I may have them but don't have the risk tolerance.