WTB: 100.00 gram weight for scale calibration

LochNESS

I just bought a new scale, and the calibration weight needed is 100.00 grams (accurate to the hundredth decimal). Do you have one to sell?

coindeuce

What is the intended use? Private or legal for trade? Accuracy to .01 gram is more practical for LFT.

Cameonut

Try Ebay.
A quick search yielded 100g calibration weights with 0.003 g tolerance for less than $5 delivered.

AUandAG

<< <i>Try Ebay.
A quick search yielded 100g calibration weights with 0.003 g tolerance for less than $5 delivered. >>



This

bob

LochNESS

Bob, there must be something wrong with my phone. I searched eBay multiple times (before creating this thread) using the eBay iPhone App and came up empty-handed! I was surprised but literally dozens of variations of the keywords and zero results. So ... you suggested eBay, and I did a little search from my PC just now ... and there are tons of results.

Don't know what happened but thanks for prompting me to look again.

LochNESS

<< <i>What is the intended use? Private or legal for trade? Accuracy to .01 gram is more practical for LFT. >>


Coindeuce, don't understand your comments as .01 is the hundredth decimal.

Regarding LFT, what laws are there governing scales usages? I plan to weigh my NEWPs and FS's. I guess that makes it both private (NEWPs weighing) and LFT (for-sale's)?

coindeuce

"Coindeuce, don't understand your comments as .01 is the hundredth decimal."

I brought the point up, as .01 gram is in practicality an infinitesimally small increment of weight. The application might be critical for analytical or scientific studies, but for weighing coins or even precious metal scrap it is an expensive feature of some scales.
.01 gram ~ 1/6 grain.

Every state and many counties have weights and measures codes which require scales to be of a certain classification to even be considered for certification of calibration for commercial (LFT) use. In my county of business legal weight scales for jewelry, precious metals and coins only require accuracy to nearest 1/10 g.

MacCrimmon

Try here!


Unless your scale is the $500+ variety with 0.0001 gr tolerance, this $10 calibration weight will suffice.

LochNESS

Ahah! Thank you for the education on laws and scales! And thanks Mac for the linky.

The 0.01 gram is indeed tiny but since I'm using this weight for calibration, I figure it better be accurate, or else the difference could compound exponentially (when I weigh a coin) leading to a 0.1 or more variance. Anyway the cheap stuff on eBay boasts a +/-0.003 accuracy so I'm feeling good about it.