The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page v
... Bottle . 28 Weighing and Measuring · 29 Weighing A Pulverulent Sample ; Alloys 30 Fluxes ; Weighing the Button ; Measuring of Fluxes ; Manner of Charging the Sample 31 II . CHEMICAL OPERATIONS . Classification ; Working by the.
... Bottle . 28 Weighing and Measuring · 29 Weighing A Pulverulent Sample ; Alloys 30 Fluxes ; Weighing the Button ; Measuring of Fluxes ; Manner of Charging the Sample 31 II . CHEMICAL OPERATIONS . Classification ; Working by the.
Page 19
... manner of taking samples varies accord- ing to the character of the substances to be assayed , viz . : — A. Non - alloys ( ores , matt , speiss , slag , etc. ) . 1. Substances in fragments , either homogeneous or heterogeneous in ...
... manner of taking samples varies accord- ing to the character of the substances to be assayed , viz . : — A. Non - alloys ( ores , matt , speiss , slag , etc. ) . 1. Substances in fragments , either homogeneous or heterogeneous in ...
Page 20
... manner above stated . b . Heterogeneous fragments .- ( Gold and silver ores , many copper ores , coal with slate and pyrites , etc. ) a . Sampling by the crossing method .'- When the grains are too dissimilar and too coarse , the entire ...
... manner above stated . b . Heterogeneous fragments .- ( Gold and silver ores , many copper ores , coal with slate and pyrites , etc. ) a . Sampling by the crossing method .'- When the grains are too dissimilar and too coarse , the entire ...
Page 21
... manner stated . This operation is repeated , finally by using the spoon , until the samples are reduced to a powder . ( Method in the great ore markets of Swansea and Liverpool , for American silver ores in the Upper Harz and in ...
... manner stated . This operation is repeated , finally by using the spoon , until the samples are reduced to a powder . ( Method in the great ore markets of Swansea and Liverpool , for American silver ores in the Upper Harz and in ...
Page 22
... manner : A dry tapping- bar , previously heated , is held in the fluid mass ( slag , 1 Bezahlungstarife für den Einkauf von fremden Erzen u . Gekrätzen auf den fiscalischen Hüttenwerken bei Freiberg . Clausthal , 1870. Oestr . Ztschr ...
... manner : A dry tapping- bar , previously heated , is held in the fluid mass ( slag , 1 Bezahlungstarife für den Einkauf von fremden Erzen u . Gekrätzen auf den fiscalischen Hüttenwerken bei Freiberg . Clausthal , 1870. Oestr . Ztschr ...
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Common terms and phrases
2.5 grammes 20 grammes added alloy ammonia ammonium antimony aqua regia argol arsenic assay sample beaker-glass bismuth black copper black flux boiled borax burette cent charcoal charge chloride coal cobalt color common salt containing copper covering of common crucible crucible Fig cubic centimeters cubic inches cupelled decanted decomposed determined diluted Dingler dried evaporated to dryness ferric oxide ferrous filtered filtrate flask fluid foreign metals Fresenius furnace fused fusion glass gold gramme 15.43 grains gramme 7.71 grains grammes 154.32 grains grammes 77.16 grains granulated lead heated hydrate hydrochloric acid ignited iron lead button liquid litharge mercury metallic sulphides meters method millimeters mixed mixture muffle muffle-furnace nickel nitric acid percentage placed platinum porcelain potassium carbonate potassium cyanide poured powdered precipitated pyrites refractory residue scorifier slag smelting sodium carbonate sodium sulphide substances sulphate sulphuretted hydrogen sulphuric acid temperature titrated tube u. h. Ztg volumetric washed weighed zinc Ztschr
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