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important numbers:


Here are some important reference numbers for coin testing:


conversions:

grams/dry ounce: 31.1034768
troy ounces/dry ounce: 0.911458


densities:

grams/cm3 (gold): 19.32
grams/cm3 (silver): 10.49
grams/cm3 (copper): 8.96
grams/cm3 (pure water): 1.000


standards:

Alloy percentages are percentages by weight (not volume)




last updated 03/08/2025 at 16:06:27 by make_www_index.command version 2025.03.04.A