Mixing and keeping D-76.

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Alastair Moore
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Mixing and keeping D-76.

Postby Alastair Moore » 29 Jul 2012, 20:10

Quick question about mixing D-76. Don't really want to/need to mix an entire 3.8 litres of D-76 at this point in time. Is there any issue in mixing half the powder now and half the powder at a later date? Or should I just mix the entire lot and shoot/develop more? :) How long does D-76 keep and what do you keep it in?

Cheers,

Welly

smbooth
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Re: Mixing and keeping D-76.

Postby smbooth » 30 Jul 2012, 13:12

I would mixed the complete bag and put in into 500ml bottles, squese the air out and do the lid up. Should keep a long time that way.

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Alastair Moore
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Re: Mixing and keeping D-76.

Postby Alastair Moore » 30 Jul 2012, 23:53

That makes sense. I hear there are certain bottles you should avoid using. I forget which but I understand standard coke bottles should be good to go?

smbooth
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Re: Mixing and keeping D-76.

Postby smbooth » 31 Jul 2012, 09:57

I just used 500ml water bottles. I believe wine bladders work just as well and you can put the whole volume into one bladder

Barrie B.
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Re: Mixing and keeping D-76.

Postby Barrie B. » 08 Aug 2012, 10:18

Welly ,
ALWAYS MIX ALL OF any powder developer. - NEVER TRY TO DIVIDE > (as there is no way of getting all ingredients properly mixed , either their weight of grain size )

I always mix the full 3.8 litre lot once , store in various sized BROWN Glass bottles filled to brim . ( I have over the years I have collected many 200ml & 250ml brown glass screw-top bottles from cough balsalms,etc )

As I always use D-76 as 1:1 dilution I find it a great developer to have in my D/room , I have used D-76 from these bottles at 12 months of age with no problems . However most years I use up this quantity within six months .

........................... Cheers Barrie B. Melbourne .
------------------
B T W -- GOOD LUCK with this forum .

John Austin
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Re: Mixing and keeping D-76.

Postby John Austin » 11 Aug 2012, 10:14

D76 = The older the better - My deep tank of D76d was made up on the 3rd May 1985 and has been used with replenishment ever since - Like me, it continues to improve with age

Tech note, I use the partial replacement of stock in addition to replenisher method and make regular zone VIII and XI tests which are measured with a densitometer to enable me to correct the replenishment regime if necessary

For more info' or to send me an exposed sheet of film for test development please PM me

John


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