The ounce is both a unit of weight and a unit of length.
The unit of length 1oz means that the copper foil thickness of PCB is about 36um, which is formed by tiling pure copper with a weight of 1oz and a density of 8.9g/cm^3 to an area of 1 square foot (= 144 inch).
The weight unit is divided into constant scale and gold scale.
(1) The unit of mass in the constant system [ounce (abbreviated as oz)], transliteration of English Ounce, translated from Hong Kong to Anshi. British unit of weight measurement. It's one sixteenth of a pound. Formerly known as Wei. The symbol is ounce or ounce, which is equal to 28.3495g
(2) The unit of mass in a drug balance system or a gold balance system is equal to 480 grains or 365,438+0.65,438+0,034,768 grams. Equivalent to 1 beam of China past 16 systems;
(3) The Chinese pinyin is àngsι.
Gold traded in European and American gold markets uses a troy ounce as the unit of measurement, which is different from the constant ounce used in Europe and America. Constant ounce is a special unit of measurement for precious metal commodities such as gold, and its conversion is as follows:
1. oz.
1 Moz = 1.097 1428 Moz = 3 1. 1034807g 1 Moz = 28.3495g。
2. Sima Liang
The trading unit currently used in the Hong Kong gold market is Sima Liang; The conversion is as follows:
1 Sima Liang = 1.20354 ounces of gold = 37.438+0g.
1 Sima Liang = 1. 1977 13 light (16 two systems)
1 Sima Liang =0.74857 bright (10 two systems)
3. Municipal units
Municipal units are commonly used units of measurement in China gold market, mainly including gold and beams, and their conversion is as follows:
1 kg = 10 Liang
1 beam = 1.607536 constant wire = 50g
4. Japan II
5. Lessons learned
Tora is a special unit of measurement for gold trading, which is mainly used in the gold markets of New Delhi, Karachi and Mumbai in South Asia. The transformation is as follows:
1 Tora = 0.375 Moz = 1 1.6638g。
6. Cao Pingliang
In old China, Cao Ping was also used as a unit of measurement for gold trading. Cao Pingliang is a steelyard unit in the late Ming and early Qing dynasties in China, and its conversion is as follows:
1 kg = 16 Cao Pingliang
1 beam =l.OO4 "Jin Hengyi si = 31.09g.
7. Records
Before the founding of New China, China also used a gold trading unit called one, which was converted as follows:
1 plate =70 beam = 4.375kg.
References:
How does Hengxin Precious Metals International Gold Convert into Domestic Gold? How many grams is an ounce?
Extended data:
What is gold futures? Gold futures refer to futures contracts with the gold price in the international gold market as the transaction target at a certain time in the future. The profit and loss of investors buying and selling gold futures is measured by the difference between entry and exit, and the physical delivery is made after the contract expires.
Gold futures are futures, just as stock investment needs to open an account in a securities company, so gold futures trading also needs to open an account in a futures company.
First of all, gold futures trading adopts a long-short two-way trading mechanism.
Secondly, gold futures trading meets the national standard GB/T4 134-2003, and the gold content is not less than 99.95%. In 2008, the Shanghai Stock Exchange stipulated that gold futures should be per lot1000g.
Thirdly, unlike T+ 1 trading in stock investment, gold futures are T+0 trading, that is, they can be sold on the day of purchase.
What is the closing price? The closing price refers to the transaction price of the last transaction of a security before the end of the trading activities of the stock exchange. If there is no transaction on that day, the latest transaction price is taken as the closing price, because the closing price is the standard of the current market and the basis of the opening price of the next trading day, which can be used to predict the future securities market;
Therefore, when analyzing the market, investors generally take the closing price as the calculation basis.
So what is the closing price of gold futures? That is, the closing price of gold futures is the closing price of the last transaction before the end of the day's trading activities.