I've had a couple of liters of Zone-VI Benzotriazole sitting on my darkroom shelf since...well...since Zone VI was still in business - so maybe 25 years? Richard?
At any rate...I'm anticipating needing a bit of this for an upcoming processing run involving some older paper, and would like to know if the old benzo might still be ok. Looks clear and I'm thinking its a go.
Yeah...I know..."run some tests." But I'm feeling a bit lazy for this. Anyone?
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