* **纯度和价值:** 贵金属的价值不仅在于重量,还在于其纯度。金衡盎司系统,其盎司稍大(31.1克 vs. 28.35克),历史上与既定的纯度标准和鉴定(对金属进行纯度测试)相关联。当你购买一枚金币或金条时,它通常被描述为“X金衡盎司的.999纯金”。金衡盎司为这些高纯度材料提供了持续且普遍认可的基准。
•Precious metals are measured in troy ounces (~31.1g), not the everyday avoirdupois ounces (~28.35g).
•The troy ounce system has ancient origins and is the global standard for precious metals trading.
•Understanding the difference ensures accurate valuation and comprehension of precious metals markets.
•Conversions to grams (31.1g per troy ounce) are straightforward and essential for clarity.
常见问题
Is the weight of gold measured in troy ounces or regular ounces?
The weight of gold, and all other precious metals like silver, platinum, and palladium, is measured in troy ounces. This is a long-standing international standard for these valuable commodities.
How much heavier is a troy ounce than a regular ounce?
A troy ounce is approximately 31.1 grams, while a regular (avoirdupois) ounce is approximately 28.35 grams. Therefore, a troy ounce is about 2.75 grams heavier than an avoirdupois ounce.
Why do we still use troy ounces for precious metals?
The troy ounce system has been used for precious metals for centuries due to its historical association with purity, value, and its establishment as the global standard for trading these commodities. Changing this established system would create significant confusion and disruption in the international market.