The weight of the weighing scales in ancient China. Time may occur later in the scales and gauges. Oracle has not been there in the weight unit, weight unit on the Western Zhou bronzes, Žļ, uniform, has yet to identify the relationship between them carry. According to historical records, Warring States Period, multi-purpose pounds, Yi, and Jun, stone. Objects can also be seen on two other, Zhu. Warring States Period, Chu can be seen, two pounds, Jun, stone and other units already in place, and gradually be promoted. At that time both countries value units per kilogram of 250 grams.

Balances and scales to the Ming and Qing dynasties have special names. "Said the text" does not scale character, scale and ancient literature often called interoperability, unearthed a large number of the Warring States and Qin right ring right arm so much as a balance weight. Museum of Chinese History Collection King of Chu value of copper rod, and the Eastern Zhou Dynasty bronze feet with long, copper value decile on the scale, weighing as may be hung in different parts of the symbol of power and weight, is generally believed that the king copper rod is balanced balance from the other arm when the transition to a steelyard scales.

"Lv; effective law" had the error range of weighing the detailed provisions. The right of the measured copper Qin Lv generally not exceed the specified error range, while the right stone (120 pounds) is much higher than the tolerance range. A lot of value right after the Eastern Han Dynasty have been rare, and the values ​​between the right amount of power and has no obvious relationship between increasing, according to analysis, then have more options for the weights of the steelyard. LIU Cheng-Northern Song Jingde years within the state treasury was re-determined standard weight and create a easy to use, arbitrage high precision scales, weighing manufacturing in China is an innovation. Yuan vast territory, commercial development, currently seen in the Yuan Dynasty more than 200 pieces of copper right, the right to reign on most of the cast and place names, and some cast or engraved Han, Mongolian, Persian, etc. Pagba and text. Popular since the Ming Dynasty is known as silver weighing more weight with the cassette, the average combined 593 grams per kilogram.

Qing government trade-offs in detail the provisions of 'Great Qing Code ", said: “ brass one inch heavy six hundred twenty-eight money. ” thirty-four years of the Qing dynasty (1908) has re-weights and measures uniform way to create a scale of 1 cubic inch weight of water quality standards, according to the National Palace Museum's collection Qianlong 29 years (1764) Manufacturing and Industry The “ Wu Bai and two bronze weight ”, equivalent to 598.4 grams per kilogram, compared with the required standards Guangxu thirty-four years together 596.8 grams per kilogram of the value of a little weight.泰安衡器    泰山衡器