Where to get a syringe for HC110?

[Gerald C Koch]

HC-110 concentrate can be easily be measured usng a 10 ml or 25 ml graduate. The graduate should be rinsed to make sure that all of it is utiliized. Both HC-110 and Rodinal concentrates have a flat meniscus making for very accurate measurement with this method.

 

[ntenny]

I have pretty much the same problem-free experience as Chris. I haven't gone to any great lengths to prove that my results are *really* consistent, but of the many inconsistencies in my photography, I have yet to find any that seemed attributable to mismeasured developer. It works out OK for me.

Some people just seem to prefer working from syrup, others from stock, and I suppose both ways work fine. Not much use for a syringe if you keep a stock solution, I suppose.

-NT

 

[Pgeobc]

Syringes are available that will not take a needle; they are used for measuring small oral doses. One or two of these should do you just fine and it should not be expensive, either.

 

[BetterSense]

I get syringes for free at Target. Measuring out 5 or 10mL of syrup is extremely precise. I clean the syringe by squirting the syrup into the water, and just suck in and squirt out water a couple times.

Sometimes I get so lazy I just squirt 5mL of developer into the top of my 250mL metal dev tank and fill it up from the tap.

 

[Mainecoonmaniac]

Take a look here.
http://www.valleyvet.com/ct_search_results.html?gas=syringes

 

[panchro-press]

AWWWW, c'mon!
It ain't THAT critical. A shot glass size graduate, and use it for water 'till it's clean. Consistency is the key.

Dave

 

[2F/2F]

Forgot to mention that I make the working solution directly when I make a quart of dilution B. But at this amount of working solution, there is no syringe required. All I have to do is use one oz. of syrup and 31 oz. of water to make a liter of working solution. 16 oz. graduates are more accurate for measuring out 1 oz., so I make 16 oz. of 1:15, then pour it into a quart graduate. Then I fill the 16 oz. graduate again to claim anything stuck to the sides, and add this water to the quart graduate until the 32 oz. mark is reached. I use the stock solution only for 8 oz. or 16 oz. batches, or for tray processing.

 

[2F/2F]

I'm sorry, Louie, but I disagree. Before mixing my one shot HC110 I bring the syrup up to 68F and have 68F tap running. I pour a few ounces of water into my 11 ounce cylinder. I then extricate 0.5 oz of syrup (what, 7.5mils IIRC) and then add that into the graduate. I then top off with water to eight ounces. I pour this into my 32 ounce cup and then add an additional eight ounces of water to bring my 16 ounce solution up. In doing so (and this is advised for those with little or no storage space like me) it frees up valuable room for toilet paper under the sink and it also serves to mix the HC110 by adding water into the syruped water twice and by also pouring it from one graduate to another.

And I have had consistent results. Well, as consistent results as a fume huffing redneck from Sussex County can legally have in a dark room. Yee HAW!!!!!

Dude. Bad idea to keep your TP under the sink. If you have a leak, your entire investment is lost!

 

[2F/2F]

Three answers -

1. I bought a set of blunt-needled syringes at a computer show. They were intended for use in refilling ink-jet printer cartridges.

2. I also have a syringe that was intended for measuring and administering medications for infants. It was free at teh pharmacy - just asked the pharmacist.

3. But my experience is that even with calibrated syringes, the viscosity of the US version of HC-110 stock concentrate (the European version is different) is such that mixing from concentrate is not very accurate. That's ok for one processing session, but if you want consistency over a number of processing sessions, a better approach is to mix the stock solution (1:7). The stock solution will keep for months (years), and when it is further diluted to make a working solution, the results will be far more consistent. And that approach is easier than trying measure a precise but very small quantity of that very sticky concentrate.

Do you mix your stock at half strength? I ask because the stock solution instructed by Kodak is 1:3, not 1:7.