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2. Fineness - Wikipedia

   en.wikipedia.org/wiki/Fineness

   Also used in U.S. silver commemorative coins and silver proof coins 1982–2018. 892.4: US coinage 1485 ⁄ 1664 fine "standard silver" as defined by the Coinage Act of 1792: e.g. Draped Bust and Capped Bust U.S. silver coins (1795–1836) 875: 84 zolotnik is the most common fineness for Russian silver.

3. Libertad (coin) - Wikipedia

   en.wikipedia.org/wiki/Libertad_(coin)

   The Libertad coins are silver and gold bullion coins originating from Mexico and minted by the La Casa de Moneda de México (Mexican Mint). The Mexican Mint was established in 1535 and is the oldest mint in the Americas. The modern coins contain 99.9% silver or gold (.999 fineness) and are available in various sizes. Both metal coins have ...

4. Nines (notation) - Wikipedia

   en.wikipedia.org/wiki/Nines_(notation)

   The exact purity of very fine precious metals such as platinum, gold and silver can be of great interest. Based on the system of millesimal fineness, a metal is said to be one nine or one nine fine if it is 900 fine, or 90% pure.

5. Britannia (coin) - Wikipedia

   en.wikipedia.org/wiki/Britannia_(coin)

   Since 2013 the silver coins have been produced with a millesimal fineness of 0.999 (99.9% silver). [3] They have a mass of 31.21 grams and diameter of 38.61 mm. [4] From 1997 to 2012 the silver coins had a millesimal fineness of 958 (95.8% or Britannia silver).

6. List of bullion coins - Wikipedia

   en.wikipedia.org/wiki/List_of_bullion_coins

   Country Name of bullion coin Fineness weights options in troy ounces (ozt) Years Minted Australia: Emu.9995: 1 ozt: 1995–1998 Canada: Palladium Maple Leaf.9995: 1 ozt: 2005–2010

7. High availability - Wikipedia

   en.wikipedia.org/wiki/High_availability

   High availability (HA) is a characteristic of a system that aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period. [1] ...