The Ministere ministÃ¨re Des transports Du quebec quÃ©bec reminds heavy vehicle users and shippers that authorized load limits are reduced during the spring thaw period in order to take into account the weaker load bearing capacity of the road network during. that period
Does 925 Sterling Silver Tarnish. 1  a silver alloy with no more than 7.5% copper. 2  Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper.3  The sterling silver standard has a minimum millesimal fineness of 925. 4  Silver of a fineness of 92.5%. Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. 2  The sterling silver standard has a minimum millesimal fineness of 925. 3  Silver of a fineness of 92.5%. 4  Silver of 921/2 percent purity.
Usually, sterling silver has a purity of 92.5%, meaning that 7.5% of the alloy is made of copper or another metal (usually nickel or zinc). There is also the so-called coin silver, which is an alloy of lower purity: It usually contains 90% or less silver.ilver, Sterling Silver, and Tarnishing. Although sterling silver is more durable than pure silver, the additional metals in the alloy make sterling silver more prone to tarnishing. This happens because the copper, nickel, zinc or other mixtures in sterling silver may react with oxygen and other elements in the air.