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Kodak HT-2 - shelf life?
Is there any reason to think this can't be kept indefinitely in a working solution?
Kodak HT-2 Hypo Test Solution
Water 750.0 ml
Acetic Acid, 28% 125.0 ml
Silver Nitrate 7.5 grams
Water to make 1.0 liter
If not, how long before it can no longer be trusted?
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The tech sheet I have states two years in a well stoppered dark glass bottle.
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That's good news. I'm hopeful to get that long out of it in my photo-grade plastic bottle.
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When it gets old, how do you know if it's good/usable?
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I'll let you know in one year and 11 months.
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Well, it leaves a stain even if it works. I suppose you could test it by using it on an unwashed print?
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