Suggestion may be sent to the Statewide Interoperability Coordinator, Jim Stromberg, at James.Stromberg@state.mn.us. Definition of Interoperability. Interoperability is the ability to communicate, as needed, on demand, and as authorized at all levels of government and across all Public Safety disciplines. The need for communications interoperability is a significant public safety issue for citizens and emergency responders readily recognized by our local public safety officials.
Other ID Marks. 1) Tarnish. On a freshly broken surface, the color is bright metallic-white. Upon prolonged exposure, it tarnishes black, brown to gray, and dark yellow.2) Silver is the best conductor of electricity. Complex Tests. Dissolves in nitric acid and and sulfuric acid.ilver can be found pure, but is usually mixed with small amounts of gold, arsenic, and antimony. A natural alloy of gold and silver is known as Electrum, and is usually classified as a variety of Gold. Silver is a very resistant mineral. It does not dissolve in most solvent s, and won't react to oxygen or water.
In black-and-white photographic film there is usually one layer of silver salts. When the exposed grains are developed, the silver salts are converted to metallic silver, which blocks light and appears as the black part of the film negative. Color film has at least three sensitive layers. Dyes, which adsorb to the surface of the silver salts, make the crystals sensitive to different colors. Typically the blue-sensitive layer is on top, followed by the green and red layers. During development, the exposed silver salts are converted to metallic silver, just as with black-and-white film.