A number of techniques are available to measure silver in photographic processing effluent, but only precise analytical results from a certified analytical laboratory, with personnel trained to perform silver analysis, should be used to demonstrate regulatory compliance.

All samples should be collected in clean, unused containers, properly labeled, and sent immediately to the chosen laboratory. You may need to request analyses for Total Recoverable Silver or Total Dissolved Silver, depending on the requirements of your local discharge regulation.

Please see our Silver Management publications for additional information.