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See all on WikipediaNines (notation) - Wikipedia
The purity of a gas is generally expressed as a grade prefixed with the letter N (rather than postfixed), indicating the "number of nines" in the percentage or decimal fraction. For example, a N2.0 gas is 99% (two nines) pure and 1% impurities by volume; a N6.0 gas is 99.9999% (six nines) pure, with 1 part per … See more
Nines are an informal logarithmic notation for proportions very near to one or, equivalently, percentages very near 100%. Put simply, "nines" are the number of consecutive nines in a See more
Wikipedia text under CC-BY-SA license 9 - Wikipedia
• Before 2006 (when Pluto was officially designated as a non-planet), there were nine planets in the Solar System.
• Messier object M9 is a magnitude 9.0 globular cluster in the constellation Ophiuchus.
• The New General Catalogue object NGC 9, a spiral galaxy in the constellation Pegasus.Wikipedia · Text under CC-BY-SA licenseFineness - Wikipedia
See more on en.wikipedia.orgMillesimal fineness is a system of denoting the purity of platinum, gold and silver alloys by parts per thousandof pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750". Many European countries use decimal hallmark stamps (i.e., "585", "750", etc.) rather than "14 k", "18 k", etc., w…- Estimated Reading Time: 8 mins
Fine Silver - What is Considered Fine Silver? - JM Bullion
WEBAny silver used for investment or trade on metal and commodities exchanges must be 99.9 percent pure, or .999, sometimes referred to as “three nines fine.” Investment grade fine silver is stamped with a …
Purity, Grades and Concentration - BOConline UK
WEBThe first digit of the grade classification indicates the 'number of nines' purity, e.g. N3.0 = 99.9% purity. The second digit is the number following the last nine, e.g. N4.6 helium …
What is Fine Gold? - APMEX
WEBTwo nines fine, or 990, is fairly rare, but still technically counts as fine Gold. Common in in historic coins originating in Venetian and Holy Roman Empire mints, Ducat fineness …
Explanation of “Nines” Regarding Metal Purity - Indium …
WEBJan 13, 2017 · This is a simple concept: “nines” refers to the purity of a material. For instance: 99.99% indium is often described as, “Four Nines” and typically written as “4N”. All three of these terms mean the same …
Nines (notation) - Wikiwand articles
WEBThe 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 …
Precious Metal Purity and Fineness - Manhattan Gold & Silver
WEBNov 28, 2010 · The purest type of gold in the market is 999.9, also known as four nines or 24 karat (k) gold. Nines are an informal, yet common method of grading the purity of …
Nine (purity) — Wikipedia Republished // WIKI 2
WEBNines are an informal, yet common method of grading the purity of very fine precious metals such as platinum, gold and silver. Based on the system of millesimal fineness, a metal is …
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