Silver - Sigma Metalytics Precious Metal Verifier Quick Start Manual

Silver-99.99% Pure
Silver samples that are 99.99% purity. This includes 99.99% and 99.999%.
These purities are sometimes written as .9999 and .99999.
Silver-99.9% Pure
Silver samples that are 99.9% purity. This is only 99.9%, and higher
purity samples should be read on the higher purity setting. This purity
is sometimes written as .999.
Silver-92.5%Sterling
Silver samples that are 92.5% silver with balance copper. Balance
copper means that the other 7.5% in the sample is copper.
Silver-90%US pre1900
The U.S. government used to mint coinage in 90% silver and 10%
copper alloys. The pre-1900 setting takes into account impurities and
contamination present in older coins that the mint was either unable to
remove or unaware existed at the time of minting. 90% silver samples
that were minted before 1900 should be tested on this setting.
Silver-90%US pre1945
The U.S. government used to mint coinage in 90% silver and 10%
copper alloys. The pre-1945 setting takes into account impurities and
contamination present in older coins that the mint was either unable to
remove or unaware existed at the time of minting. 90% silver samples
that were minted between 1900 and 1945 should be tested on this
setting.
Silver-90% Coin 1960
The U.S. government used to mint coinage in 90% silver and 10% copper
alloys. The coin 1960 setting takes is designed for 90% silver, 10% copper
coins minted from 1946 to present day. 90% silver samples that were
minted between 1946 and present day should be tested on this setting.
Silver-96% Britannia
Between 1997 and 2012, Silver Britannia coins were minted with a 95.8%
silver and 4.2% copper alloy. Silver Britannia coins from this era should
be tested on this setting. Silver Britannia coins from 2013 to present day
are minted from 99.9% pure silver alloy.
Silver-80% Canadian
Certain Canadian silver dollars and commemorative coins were
minted with an 80% silver and 20% copper alloy. Coins with that alloy
can be tested on this setting. Note that not all Canadian silver coins
were minted with this alloy.
Alloy Explanations

Silver

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