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OfflineAvicularia
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Will these Whatman filters work?
    #15849813 - 02/22/12 09:21 PM (12 years, 3 days ago)

http://www.sci-bay.com/catalog.asp?prodid=522621&showprevnext=1

These seem extremely cheap. What am I missing?


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Invisibleuncle_rico
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Re: Will these Whatman filters work? [Re: Avicularia]
    #15849972 - 02/22/12 09:56 PM (12 years, 3 days ago)

1.5 um ....

the ones I use are .2 um


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OfflineAvicularia
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Re: Will these Whatman filters work? [Re: uncle_rico]
    #15852620 - 02/23/12 01:56 PM (12 years, 2 days ago)

So, again... Will these work for our purposes?


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InvisibleTranscendingLife
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Re: Will these Whatman filters work? [Re: Avicularia]
    #15852686 - 02/23/12 02:10 PM (12 years, 2 days ago)

no.
they will not work.
as stated above you want .2 um.
Here's the ones you want:


**Note - the size of the Whatman doesn't matter. I got 13mm cuz that's what they had on sale.


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Offlinehellokitty
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Re: Will these Whatman filters work? [Re: TranscendingLife]
    #15852759 - 02/23/12 02:22 PM (12 years, 2 days ago)

you can go to hobby lobby and buy EZ-felt. no clue what the um is but I have done 100+ jars with no contams. 80 cents for a big sheet...



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InvisibleTranscendingLife
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Re: Will these Whatman filters work? [Re: hellokitty]
    #15852793 - 02/23/12 02:30 PM (12 years, 2 days ago)

Whatmans are not to be used on grains jars as they don't allow enough GE.
They're for LCs, because you only need GE for LC jars to ensure there is no vacuum.


--------------------
AMU: We Quickly Answer Questions Here
"One must accept the probability of failure to experience the elation of success." - TranscendingLife
“A man of genius makes no mistakes; his errors are volitional and are the portals of discovery.” - James Joyce
:sporedrop::sporedrop::mushroomgrow::sporedrop::sporedrop::wow:How I Do EVERYTHING:wow::sporedrop::sporedrop::mushroomgrow::sporedrop::sporedrop:
"Your vision will become clear only when you can look into your own heart…. Who looks outside, dreams; who looks inside, awakes."- Carl Jung
"Anything that can be done chemically can be done by other means."- William S. Burroughs
"You are as dead now as you will ever be" - Seth


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Offlinehellokitty
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Re: Will these Whatman filters work? [Re: TranscendingLife]
    #15852816 - 02/23/12 02:33 PM (12 years, 2 days ago)

hmmm, i have 2 LC's with ez-felt on them. still no issues...


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InvisibleTranscendingLife
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Re: Will these Whatman filters work? [Re: hellokitty]
    #15852855 - 02/23/12 02:41 PM (12 years, 2 days ago)

Yea, you can use EZ-felt or SFDs or Tyvek or Polyfil as a filter for your jars.
I like Whatmans, because I manually swirl my LCs by lifting the jar by the lid & making a circle motion w/ my wrist.
Whatmans ensure that no liquid will touch my filter.


--------------------
AMU: We Quickly Answer Questions Here
"One must accept the probability of failure to experience the elation of success." - TranscendingLife
“A man of genius makes no mistakes; his errors are volitional and are the portals of discovery.” - James Joyce
:sporedrop::sporedrop::mushroomgrow::sporedrop::sporedrop::wow:How I Do EVERYTHING:wow::sporedrop::sporedrop::mushroomgrow::sporedrop::sporedrop:
"Your vision will become clear only when you can look into your own heart…. Who looks outside, dreams; who looks inside, awakes."- Carl Jung
"Anything that can be done chemically can be done by other means."- William S. Burroughs
"You are as dead now as you will ever be" - Seth


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