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Assay offices are institutions set up to assay (test the purity of) precious metals. This is often done to protect consumers from buying fake items. Upon successful completion of an assay (i.e. if the metallurgical content is found be equal or better than that claimed by the maker and it otherwise conforms to the prevailing law) the assay offices typically stamp a hallmark on the item to ...
Credit Suisse was also a primary dealer and Forex counterparty of the Federal Reserve in the United States. Credit Suisse was founded in 1856 to fund the development of Switzerland's rail system. It issued loans that helped create Switzerland's electrical grid and the European rail system.
Download as PDF; Printable version; ... Pages in category "Credit Suisse" ... Template:Credit Suisse; Credit Suisse First Boston (Europe) Ltd v Lister ...
A certificate of analysis (COA) is a formal laboratory-prepared document that details the results of (and sometimes the specifications and analytical methods for) one or more laboratory analyses, signed—manually or electronically—by an authorized representative of the entity conducting the analyses. This document gives assurances to the ...
Since most analytical instrumentation is comparative, it requires a sample of known composition (reference material) for accurate calibration. These reference materials are produced under stringent manufacturing procedures and differ from laboratory reagents in their certification and the traceability of the data provided.
Gold certificates allow gold investors to avoid the risks and costs associated with the transfer and storage of physical bullion (such as theft, large bid–offer spread, and metallurgical assay costs) by taking on a different set of risks and costs associated with the certificate itself (such as commissions, storage fees, and various types of ...
In the past the assay was conducted by using the touchstone method but currently (most often) it is done using X-ray Fluorescence (XRF). XRF is used because this method is more exacting than the touchstone test. The most exact method of assay is known as fire assay or cupellation. This method is better suited for the assay of bullion and gold ...