Filter membrane compatability chart

[nightprowler7]

I found this very helpful

Take away-

Nylon and PTFE are compatible with ba/bb


Pvdf states "No Compatibility Data Currently Available" for BB

Membrane Filter Chemical Compatibility Chart

scientificfilters.com

 

[narta]

PVDF is ok for up to 20% BB

PTFE is best

 

[nightprowler7]

PVDF is ok for up to 20% BB

PTFE is best

Do you have a source for that information?

 

[DarkStalker]

Used pvdf in the past with bo problems

 

[jJjburton]

Nylon for me

 

[jJjburton]

I found this very helpful

Take away-

Nylon and PTFE are compatible with ba/bb


Pvdf states "No Compatibility Data Currently Available" for BB

Membrane Filter Chemical Compatibility Chart

scientificfilters.com

are the whatmans pvdf good?

 

[nightprowler7]

are the whatmans pvdf good?

There's no chemicals compatibility data for bb and pvdf

 

[jJjburton]

There's no chemicals compatibility data for bb and pvdf

But i hear alot of people use them? Have you ever?

 

[patriotmuscle1]

Nylon or ptfe.. I'll try and find the source but ptfe has the better range for chemicals/solvents..
Nylon is easier to source usually. I'm not sure if it's because it's more common or if ptfe is more popular therefore pit of stock often.

 

[nightprowler7]

But i hear alot of people use them? Have you ever?

Yes I have. But stopped and switched to biomed ptfe after I read that

 

[jJjburton]

Yes I have. But stopped and switched to biomed ptfe after I read that

Ok yea, i will wait. Ordered biomed again and new vials. Spent WAY to much time and money on this brew, still saved more money then ever buying. Dammit

 

[nightprowler7]

Ok yea, i will wait. Ordered biomed again and new vials. Spent WAY to much time and money on this brew, still saved more money then ever buying. Dammit

Did you still keep it to re filter it?

 

[jJjburton]

Did you still keep it to re filter it?

Yes going to keep, as its sterile and will be using, maybe its the needle? Its only 1 particle. In each vial. So odd.

I have to refilter again, so i have vials on the way, but using 23 gauge only and 25 gauge for the air needle, throwing away all the crap amazon needles from BD supplements, and will refilter in a pfizer sterile vial, that is using a nylon filter and will use a new nylon for each 2 10 mL vials, using normal BD syringes and using the vial needle technique

 

[jJjburton]

Did you still keep it to re filter it?

I really like the ALK vials, i finally found them, but already got some pfizer. So we shall see

 

[nightprowler7]

Yes going to keep, as its sterile and will be using, maybe its the needle? Its only 1 particle. In each vial. So odd.

I have to refilter again, so i have vials on the way, but using 23 gauge only and 25 gauge for the air needle, throwing away all the crap amazon needles from BD supplements, and will refilter in a pfizer sterile vial, that is using a nylon filter and will use a new nylon for each 2 10 mL vials, using normal BD syringes and using the vial needle technique

I have been buying vials from Medlabsupply and out of probably 500 I've never had 1 issue

 

[jJjburton]

I have been buying vials from Medlabsupply and out of probably 500 I've never had 1 issue

Me too, thats whats odd…. Until now, so idk, ill try again in future

 

[nightprowler7]

Me too, thats whats odd…. Until now, so idk, ill try again in future

Are you sure it was already in the vial

 

[jJjburton]

Are you sure it was already in the vial

i dont think its filter material… as i used biomed syringe nylon filters…only other option would be coring? But the fiber was curved a little, it was SOOO small, and it would sink to bottom. So not air bubbles.

Only other option would be coring? So next go i will only use 23 gauge filer needle and 25 gauge air release.

I used a brand on amazon as air release, bh supplies 22 gauge. That may be the issue? But i would think ONE puncture with that size wouldnt cause coring every single time.


And again, each vial only had 1 floater, that was it.

I am at a loss….