Regular ounce vs Troy ounce (FYI)

lcoopie

The avoirdupois ounce is the most commonly used ounce today. It is defined to be one sixteenth of an avoirdupois pound

Today, the troy ounce is used only to express the mass of precious metals such as gold, platinum or silver.

Summary of ounce units

International avoirdupois ounce= 28.349523grams = 437.5 grains
International troy ounce= 31.1034768grams= 480 grains


from widipedia

I know I have trouble remembering this
(a troy ounce is larger than a regular ounce by 9.71%) almost 10%

ProofArtworkonCircs

And there are 12 troy ounces in a troy pound. This is useful for trivia questions only. The troy pound is not used for much of anything else.
Anyhow that means a pound of feathers is heavier tha a pound of gold,
BUT, an ounce of gold is heavier than an ounce of feathers.

Then there is the fluid ounce which actually is a measure of volume. One fluid ounce = 29.573 ml. In the case of water that should work out close to 29.573 grams.

I am amazed at how quickly my mother was brainwashed to say "a pint is a pound, the world around". She originally came from Canada which had 20 Canadian fluid ounces (slightly smaller than ours) to the Canadian (Imperial) pint (20 % larger) . Canada is now metric.


edited to add fluid ounce

PerryHall

<< <i>And there are 12 troy ounces in a troy pound. This is useful for trivia questions only. >>



Not true. There are large silver rounds in the market place that are marked "ONE POUND FINE SILVER" and buyers that buy at 16 X spot will be overpaying significantly.

ProofArtworkonCircs

<<<< And there are 12 troy ounces in a troy pound. This is useful for trivia questions only. >>



Not true. There are large silver rounds in the market place that are marked "ONE POUND FINE SILVER" and buyers that buy at 16 X spot will be overpaying significantly. >>


True. I suspect these people are up to no good and trying to cash in on people who think 16X.

ProofArtworkonCircs

Questionable rounds reminds me of a few years back now. Sombody was advertising .999+% silver rounds.
I know what .999 is and what 99.9% is but .999% sounds like .1 % or .001 fine.

I complained to several agencies and people. Nobody was impressed. They all said it was .999 fine. I think it was the ANA that finally anaylzed them and they were 1% silver.

CaptHenway

<< <i>Questionable rounds reminds me of a few years back now. Sombody was advertising .999+% silver rounds.
I know what .999 is and what 99.9% is but .999% sounds like .1 % or .001 fine.

I complained to several agencies and people. Nobody was impressed. They all said it was .999 fine. I think it was the ANA that finally anaylzed them and they were 1% silver. >>



We got some of those in and I did a specific gravity on one before we did it. Pure copper with a heavy silver plating that made the weight just under 1% silver, or as it said .999% silver. Very deceptive ripoff.

I have also seen bogus gold done the same way.

Scumbags!

TD

lathmach

The grains refered to are grains of wheat.
If you need to weigh something just go out to the barn and get a scoop of wheat out of the silo and count out the proper number of grains.
Make sure you cut one in half for the avoirdupois ounce.
Wouldn't want your weight off.

Ray

FishyOne

So when you buy an ounce of silver coins is the seller obligated to provide a troy ounce or would an advoirdupois ounce be acceptable?

Thoughts?

SilverEagles92

<< <i>So when you buy an ounce of silver coins is the seller obligated to provide a troy ounce or would an advoirdupois ounce be acceptable?

Thoughts? >>



I guess there is no obligation, but silver is almost always traded in troy ounces.

CaptHenway

<< <i>So when you buy an ounce of silver coins is the seller obligated to provide a troy ounce or would an advoirdupois ounce be acceptable?

Thoughts? >>



Troy ounce is reasonable and customary, so I think that if you got an avdp. ounce you would have cause for action.
TD