The methods of assaying are best classed under two heads, Gravimetric and Volumetric, in the former of which the final results are weighed, whilst in
Acetic Acid, HAc or C2H4O2. (sp. gr. 1.044, containing 33 per cent, real acid).—An organic acid, forming a class of salts, acetates, which are for
Weighing.—The system of weights and measures which we have adopted is the French or metric system; in this the gram (15-43 grains) is the unit
Table of ContentsDry AssayScorification AssayPOT ASSAYSAssaying Ores containing Metallic OxidesAssaying Ores containing much SulphidesDetermination of Silver in Assay LeadDetermination of Silver in Red Lead or LithargeDetermination
The relation of the weight of a substance to its volume should be kept in mind in all cases where both weight and volume are
Table of ContentsDRY METHODWET METHODSGRAVIMETRIC DETERMINATIONVOLUMETRIC METHODS Mercury occurs native and, occasionally, alloyed with gold or silver in natural amalgams; but its chief ore is
Table of ContentsAMALGAMATION ASSAYDRY ASSAYSize of Assay ChargesSamplingAssay TonsEstimation of Small Quantities of GoldConcentration of the fine Metal in LeadOres containing Oxides of IronOres containing
Table of ContentsDRY ASSAYFusion for RegulusCalcining the RegulusFusion for Coarse CopperRefining the Coarse CopperCleaning the SlagsDetermination of Copper in Copper PyritesEstimation of MoistureWET METHODSVOLUMETRIC PROCESSESCopper
Table of ContentsSTEEL & ROCK WHICH INFLUENCE WEARMECHANISM OF ABRASIONANALYSIS OF EXISTING DATA RELATING TO ROAD-MAKING STONESEXPERIMENTAL STUDY OF ABRASIVE ROCKSCORRELATION OF STRUCTURE AND MECHANICAL
Table of ContentsDOUBLE-TOGGLE JAW CRUSHERTHE SINGLE-TOGGLE JAW CRUSHERSLONG-SHAFT GYRATORY CRUSHERSSHORT-SHAFT GYRATORY CRUSHERSGEAR-DRIVEN CRUSHING ROLLSBELT-DRIVEN CRUSHING ROLLSDISK CRUSHERSSINGLE-ROLL BREAKERSSWING-HAMMER CRUSHERSSPECIAL GYRATORY MACHINES FOR SECONDARY CRUSHINGALLOY & STEELS