Anyone in USA notice Glacial Acetic Acid difficult to obtain?

Darkroom c1972

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Darkroom c1972

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Tōrō

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Signs & fragments

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Summer corn, summer storm

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Summer corn, summer storm

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Photo Engineer

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Larry;

Swell begins to take place within 20 seconds through normal film at 68 deg F. This is the average diffusion time of developer into film. The swell starts instantly due to pH and due to water both.

I used to plot this with a device called a swellometer at EK. Swell, in microns, vs time!

PE
 
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