Silver Recovery
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| Film images made before 1974 and containing 20% more silver than film made afterward | archival film
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| Unit of weight in the English System more commonly known as the standard ounce | avoidupois oz
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| A potential problem in certain metallic replacement silver recovery units whereby the fixer forms a straight channel that reduces efficiency | channeling
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| Oldest form of silver recovery. In this method the mixing of such compounds as sodium sulfite and zinc chloride with used fixer can cause a chemical reaction | chemical precipitation
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| The amount of time that the fixer solution is in contact with the active portion of the silver recovery device | dwell time
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| A process in which an electric charge causes a chemical change in a solution or molten substance | electrolysis
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| Film that has not been processed | green film
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| A method of silver recovery from used fixer solution | metallic replacement
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| A type of electrolytic silver recovery device that recirculates fixer back into the processor after silver reclamation | recirculating electrolytic unit
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| Exposed and processed film that is not of diagnostic use and is disposed of for silver recovery | scrap exposed film
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| A buildup of sulfur on the electrodes in an electrolytic silver recovery unit as a result of incorrect amperage setting | sulfurization
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| An electrolytic silver recovery device in which the used fixer is removed for disposal | terminal electrolytic unit
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| A unit of weight used for precious metals such as silver; 14.58 troy ounces = 16 standard ounces | troy oz
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