Crossword clues for assaying
The Collaborative International Dictionary
Assaying \As*say"ing\, n. The act or process of testing, esp. of analyzing or examining metals and ores, to determine the proportion of pure metal.
Assay \As*say"\, v. t. [imp. & p. p. Assayed; p. pr. & vb. n. Assaying.] [OF. asaier, essaier, F. essayer, fr. essai. See Assay, n., Essay, v.]
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To try; to attempt; to apply. [Obs. or Archaic]
To-night let us assay our plot.
--Shak.Soft words to his fierce passion she assayed.
--Milton. -
To affect. [Obs.]
When the heart is ill assayed.
--Spenser. To try tasting, as food or drink. [Obs.]
To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition.
Wiktionary
n. A trial by assay. vb. (present participle of assay English)
Usage examples of "assaying".
Many assayers use flasks, though of a smaller size, for the ordinary partings in assaying gold ores.
The methods of assaying are mainly those of analytical chemistry, and are limited by various practical considerations to the determination of the constituents of a small parcel, which is frequently only a few grains, and rarely more than a few ounces, in weight.
It is unfit for use in assaying, but when dried it can be used instead of the bicarbonate.
If one should be spoiled, it is better to allow it to stand over for assaying along with the next batch.
It is used as an indicator in volumetric silver assaying, and for the separation of iodine from bromine.
It is used in dry assaying as a flux, as a desulphurising agent, and also as a source of lead.
The bad effect of a higher temperature in increasing the cupellation loss need hardly be considered in the case of such small buttons of gold as are obtained in assaying gold ores, as any loss there may be is hardly appreciable by the balance.
And in the parting of such gold buttons as are obtained in assaying ores it is well to aim at this proportion, though absolute precision is not a matter of importance.
Rose in some special assay pieces found by a less direct method of assaying, from .
The black tin weighed by the vanner is supposed to correspond in quality with the black tin returned from the floors of the mine for which he is assaying, but this differs materially in different mines with the nature of the gangue.
It is certainly the most ready and expeditious mode of determining the commercial value of a parcel of tin ore, which, after all, is the main object of all assaying operations.
Permanganate of potash is a salt much used in assaying, with some properties of which the student will have already become familiar.
They show that having passed through such a sieve is no proof of sufficient powdering, not that all ores powdered and so sifted are unfit for assaying.
The antigravity mechanism and its neatly built-in turbojet, part by part, under X-ray and on the fine balance he used for assaying quartzcar specimens, was an unblemished complexity.
At the latter end of the year 1798 I left my chambers, and removed from the Clyde Works to the distance of about a mile, where I constructed several furnaces for assaying and cementing, capable of exciting a greater temperature than any to which I before had access.