3 thoughts on “Excuse me, how to calculate the result of the gold content with watering?”

  1. If: 100 grams of gold, 7 grams in the water.
    The formula: Gold colors = weight in the gold air/the weight of gold in the water/19.34.
    So: Gold colors = 100/7/19.34 = 73.9%.
    The domestic gold jewelry are all prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; Those who can not play K gold printed in accordance with regulations.
    The illegal elements in the society are commonly used to make fake cards and imitation stamps, and use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry should be comprehensively judged according to the sample to determine the true and falseness.
    The expansion information:
    The gold name depends on its purity. For example, the gold with a purity of 99%is called "foot gold", the gold with a purity of 99.9% "Thousands of gold", the purity of 99.999%of the gold, can call it "100,000 enough gold", or "high pure gold".
    The idioms are called "gold without redness, no one is perfect", in fact, 100%of pure gold does not exist. The first reason is to refine the technology, and the other is because the gold jewelry or gold bar is in the process of processing.
    The technology
    In technical, gold jewelry with connection points must use welded materials due to process needs. The welds used in gold jewelry processing are specific alloy materials. The composition of itself is mainly gold, and it contains a small amount of silver, copper or tin.
    The welds are divided into three types: high welding, medium welding and low welding. The gold content is 940 ‰, 920 ‰, and 840 ‰. Foot gold and thousands of gold jewelry generally use welds with gold content of more than 90%to ensure the goldenness of the jewelry.
    The proportion of welds is about 0.2%. The content of solder in other K gold jewelry is slightly higher, but it will not exceed 8%.
    National standards
    If in accordance with the "Regulations and Naming Methods of Jewelry Pure Metals" (National Standard GB/T11887-2002), the minimum purity of the purity of the foot gold is 990, that is, the purity is not less than 990 ‰; The minimum value of thousands of gold is 999, that is, the purity is not less than 999 ‰.
    In standards here, the purity range of precious metals in precious metal jewelry does not include welding ingredients, but the finished product content must not be lower than the specified purity range.
    regulations on the purity of gold in the national standard refer to the minimum purity value. In most of the domestic market, the purity of most gold and thousands of gold raw materials exceeds the lowest value (the purity of the foot gold reaches 995 ‰, and the purity of thousands of gold reaches 999.5 ‰).
    Reference information Source: Baidu Encyclopedia -Golden purity

  2. Pay content for time limit to check for freenAnswer gold content = gold quality ÷ 19.34 ÷ the reading of water is like a gold necklace, which weighs 100g, and the readings after hanging water are 7g. Then its content is: gold content = 100/7/19.34 = 73.9%Gold hanging water method is to get the volume of gold and then calculate the gold content. Here we understand the volume of hanging gold. Equipment required for hanging water: electrons, one -time cup or open cup, fine fish line or fine cotton line, a calculator. If the electrons must be accurate to the two digits (0.00) after the decimal point, the electronic name of 200 grams or more than 500 grams is weighed; For example, gold above 100 grams is best to use electronic cups of more than 500 grams. After the tool is ready, the water weight of the water is performed (1) the gold weight that needs to be suspended (2) The cup is full of water to cover 3/2 (3) to hang gold with a thread. If you are tied up in a circle, you must hang up the gold. Do not dip the gold and other debris (4) to put the cup of water in the electrons to zero (5) and slowly put the hanging gold in the water cup. Stay for about 15 seconds to get the accurate number displayed on the electronic name. Remember not to touch the reading of a low cup wall (6) reading, calculate.

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