manbat
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Comedic relief.
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Pinging @Photon
Anyone that has knowledge please don't hesitate to chime in on this matter.
For a steady 1hr looking high and low could not find a bottle top filter housing under these standards, made of polypropylene and sterile .2um. All come back as polystyrene
Photon double check me please.
Therefor the only solution I came up with is buying the non sterile Zap Caps .2um with Nylon membranes and then autoclaving them for a sterile condition. Thoughts?
Since
A nylon membrane is resistant to benzoyl benzoate, as it is compatible with most organic solvents, including esters like benzoyl benzoate. Nylon membranes are widely used for filtering esters, ketones, and other organic solvents.
Key properties of nylon membranes relevant to this application:
Anyone that has knowledge please don't hesitate to chime in on this matter.
For a steady 1hr looking high and low could not find a bottle top filter housing under these standards, made of polypropylene and sterile .2um. All come back as polystyrene
Photon double check me please.
Therefor the only solution I came up with is buying the non sterile Zap Caps .2um with Nylon membranes and then autoclaving them for a sterile condition. Thoughts?
Since
A nylon membrane is resistant to benzoyl benzoate, as it is compatible with most organic solvents, including esters like benzoyl benzoate. Nylon membranes are widely used for filtering esters, ketones, and other organic solvents.
Key properties of nylon membranes relevant to this application:
- Broad chemical resistance: Nylon is compatible with a wide range of aqueous and organic solutions.
- Hydrophilic: The naturally hydrophilic nature of nylon membranes allows for use with both aqueous and many organic solutions.
- Strong and durable: Nylon membranes are mechanically strong and resistant to tearing.
- Good for HPLC: Nylon membranes are commonly used for filtering high-performance liquid chromatography (HPLC) samples and solvents.
Last edited:
sionnach
Banned
Photon
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Unfortunately it's a trade off between sterility and compatibility.
The ones that come sterile have spec sheets that usually tell you not to use with BA/BB. And the ones that are compatible with BA/BB do not come sterilized lol. I don't know why either. I'm not sure if they are autoclavable.
Newer vendors have switched to capsule filtering. Comes sterile + PTFE i believe. Would that be an option?
To avoid this, I stick to syringe filtering, which is made out of polypropylene + PTFE but this is definitely not an option for vendors (too slow).
Elektrobot
Member
Nalgene™ Vent Filters and 50mm Capsules 0.22 μm | Buy Online | Thermo Scientific™
Nalgene™ Vent Filters and 50mm Capsules. Filter aggressive chemicals, including acids and non-aqueous solvents such as those used in GC and HPLC with this in-line syringe filter with PTFE membrane. Available in 0.22 μm
www.thermofisher.com
Photon
Member
Pretty cool but i think his filtering cost wil go up like 5-10x..lol
You'd also need a solvent resistant tube, which is not easy to get..
Last edited:
Elektrobot
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DieselSemi
New Member
Just got in my shipment of needles. Tried the 30g thin wall and holy shit that was smooth and fast. About 2x as fast as the cheap Amazon 30g. I'm probably just gonna toss my old ones lol. 
I currently use a peristaltic pump and capsule filter setup and am very curious on if the bb is eating away at the tubing. I have a sample sent in to Jano that should show if it is or not.
Photon
Member
It's a pity MLS doesn't have those 30gs
crispybacon!
Member
Recently got some Nipro 27g and 30g as well. What surprised me was the 27g felt as smooth as the 30g, and has the benefit of pushing the oil a little easier. Loving the Nipros.
Photon
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Additional options
Glass bottletop with replaceable pre sterilized filter disks
Glass bottletop with replaceable pre sterilized filter disks
OEP LABS
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Upon more reading apparently zap caps with nylon membrane can be sterilized in autoclave
Autoclavable ZapCap filters
- PTFE (Teflon) membrane filters: The chemically resistant ZapCap-CR filters are designed with polytetrafluoroethylene (PTFE) membranes, which can withstand high temperatures and are compatible with autoclaving. Non-sterile versions can be sterilized using an autoclave, while sterile versions are typically gamma-irradiated.
- Nylon (NYL) membrane filters: Some ZapCap-CR units are also available with nylon membranes, which are generally compatible with autoclaving.
- Cellulose acetate (CA) membrane filters: ZapCap-S filters, commonly used for filtering cell culture media and other aqueous solutions, have a cellulose acetate (CA) membrane. These units are typically supplied sterile via gamma radiation and are described specifically for filtering solutions that "cannot be autoclaved". The CA membrane is not designed to withstand the high heat of autoclaving.
Elektrobot
Member
Why nylon over ptfe?
I've never filtered anything over 10ml at once, but always used ptfe for oils. Does the membrane material choice have to do with the scale of use?
Photon
Member
It's a limitation,
Sterile PTFE bottletop filters compatible with solvents are difficult to get.
(Rarely any industry need for it)
Syringe filters do not face this issue.
OEP LABS
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Minor Announcements Topic: Last minute Invoices & Further Testing
First, these last invoices may run 1-2 day delay helped as many as I could before finally going into restock mode.
Okay Nylon has been overnighted shipment. I Checked out the glass bottle tops nice as well. May move onto the Peristatic pump soon with the option to fill as well looks very nice and Hollywood so to speak. I've updated the pastebin with all that has been tested amongst raw material and finished oils.
Requested, all invoices please send to the oldest email stated on pastebin. Please on subject: input on the Date only, that alone Will help alot when looking for everyone. Jumping from telegram to tuta to proton takes time best to keep on 1 platform in my opinion.
If it is okay with the member who did the blind sample for Tren Ace I used his reported milligram on the pastebin for Tren Ace. Why, because on TRA we only have maybe 50 left until further material comes. It was ordered long ago along with SUS, that is why those 2 compounds have not been sent to Jano. As soon as they arrive the material will be sent, followed by the finished oil.
Currently restocking Test Cyp, can and will send secure email to repeat veteran clients on what is remaining on TC batchA6. We are looking good on it and material on TC
Testing: Appears what is left to be sent for testing is, Deca material report, Deca finished oil HPLC report, Test Decanoate finished oil report. Any input feedback please let me know. Communication always open during this time off restock. Will check back in periodically. Current pastebin below for Monday
View: https://pastebin.com/Nc1A9vB9
First, these last invoices may run 1-2 day delay helped as many as I could before finally going into restock mode.
Okay Nylon has been overnighted shipment. I Checked out the glass bottle tops nice as well. May move onto the Peristatic pump soon with the option to fill as well looks very nice and Hollywood so to speak. I've updated the pastebin with all that has been tested amongst raw material and finished oils.
Requested, all invoices please send to the oldest email stated on pastebin. Please on subject: input on the Date only, that alone Will help alot when looking for everyone. Jumping from telegram to tuta to proton takes time best to keep on 1 platform in my opinion.
If it is okay with the member who did the blind sample for Tren Ace I used his reported milligram on the pastebin for Tren Ace. Why, because on TRA we only have maybe 50 left until further material comes. It was ordered long ago along with SUS, that is why those 2 compounds have not been sent to Jano. As soon as they arrive the material will be sent, followed by the finished oil.
Currently restocking Test Cyp, can and will send secure email to repeat veteran clients on what is remaining on TC batchA6. We are looking good on it and material on TC
Testing: Appears what is left to be sent for testing is, Deca material report, Deca finished oil HPLC report, Test Decanoate finished oil report. Any input feedback please let me know. Communication always open during this time off restock. Will check back in periodically. Current pastebin below for Monday
View: https://pastebin.com/Nc1A9vB9
OEP LABS
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I'll help as much as possible my man if ETC is all you have. I believe there is gas needed to move it? To make it easy on me in my opinion btc is the preferred on my end. I will work as best as I can with you under the circumstance
Vikingo
Member
My first pack from Pench just landed. Great communication, fast shipping and good packaging. Love the quality hardware! Looking forward to running the gear in my next blast.
CharlesV
Member
more kudos to OEP. Test D pack arrived safely this afternoon, but i’m enduring this brutal stretch of work travel and likely won’t realize the goods for another week or so. there was a nice little dopamine rush when the delivery text hit though. it’s the little things.
I’m coming in about 4 days late on this, but we need more folks printing the VialVault inserts. as far as i can tell, you can buy the insulated container for as low as $20 on AE. VialVault on Etsy charges $130+$26 shipping for the same thing plus the printed stack inserts. he’ll sell the inserts alone for $75 lol. i know that shit cost 88 cents to make.
could probably sell them for half price and still make enough to justify the time.
I’m coming in about 4 days late on this, but we need more folks printing the VialVault inserts. as far as i can tell, you can buy the insulated container for as low as $20 on AE. VialVault on Etsy charges $130+$26 shipping for the same thing plus the printed stack inserts. he’ll sell the inserts alone for $75 lol. i know that shit cost 88 cents to make.
could probably sell them for half price and still make enough to justify the time.
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