Assay

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Assay

Metal purity test to confirm that the metal meets the standards for trading on a commodities exchange (commodities exchange center).

Assay

To test precious metals for their purity. This is important to commodities and futures involving precious metals, in which the quality of the underlying metals must be specified in the contract.

assay

A test to determine the purity of gold, silver, or other precious metals. Metals used for delivery of futures contracts must be assayed to verify that they meet standards established by the exchange on which the contracts trade.
References in periodicals archive ?
(26.) Galilei G: The Assayer. In Galileo Heretic, p 41.
A later stage in that dispute led to The Assayer, which appeared in 1623.
Locally made bricks used in an assayer's furnace built by Gans have been found on Roanoke.
In real life, personally relevant decisions are a blend of visceral and mental information processing, with emotions being the primary assayer of value, according to Damasio (1994).
Concerning the controversy over comets, Giovanni Ciampoli wrote about Galileo's Assayer that "I, who understand little, can admire it better than argue about it"--and thus, according to Biagioli, "tended not to commit himself about the truth-value of Galileo's empirical claims." (78) Maffeo Barberini was just such a non-committal patron, and Biagioli shows him present as a cardinal, admiring Galileo, at the lunchtime dispute about buoyancy in Florence.
He had earlier written a most laudatory ode in honor of Galileo, and after coming to the throne he welcomed Galileo in several audiences, gave him gifts, and accepted the dedication of one of Galileo's major works, The Assayer.
Burilladas, the word given for the zigzag markings made by a burin when the assayer took some metal to test for the standard of purity, is often regarded as proof of authenticity.
Having trained to become an assayer, analysing minerals and ores to determine their worth, Paxton became assay master at Fort William in Bengal.
It is well known that Galileo replied to Grassi's work by publishing The Assayer, in which he established the distinction between primary and secondary qualities which led to the suspicion of heresy described in the anonymous manuscript.
When Ag assays comparable to those from the Silver King mine were obtained, the assayer, a 1910 Stanford University graduate in geology and mining named Alfred Kirk Schellinger, was sent to examine the showing.
The firm, which started life as a gold assayer in London in the early 19th century, uses platinum to make catalytic converters for vehicles.
Annual salaries for mint employees were to be $2,000 for the director; $1,500 each for the assayer and chief coiner; $1,200 each for the engraver and treasurer, and for clerks, "not exceeding $500."