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  • MINING - CoinMine

    Are these grades good? The following are considered 'high grades' for the purposes of most North and South drilling programs: G reater than 5 g/t gold and 15 g/t silver (NOTE: this was the company's version of what a high grade means, and they specifically .

  • Wellington Laboratories Standards for Environmental Testing for PCDDs, PCDFs, PCBs, BFRs, PAHs, PFCs

    Wellington Laboratories Inc. offers a variety of native and mass-labelled reference standards for legacy environmental contaminants such as polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs).

  • Australian Mining & Exploration Companies-News

    Wednesday 31st October 2001 (Close of Business) All Ords 3185.3-2.1 Dow Jones 9075.14-46.84 ASX200 3249.6-3.2 S&P 500 1059.78-0.01 All Resources 1395.7-24.7 Nasdaq 1690.29 +22.79 All Mining 650.1 +1.2 Gold - spot/oz US$279.40-0.70 All Gold 890.8

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    . (1,7)rllcode (1-hydroxyethylidene)bisphosphonic acid (1.7)rll coding (10)λ type udt (100) face orientation aluminum plate (100) orientation aluminium plate (100)gaas (100)orientation (103)orientation (103)oriented .

  • ARSENIC AND ARSENIC COMPOUNDS (EHC 224, 2001)

    1. SUMMARY 1.1 Properties and analytical procedures Arsenic is a metalloid widely distributed in the earths crust and present at an average concentration of 2 mg/kg. It occurs in trace quantities in all rock, soil, water and air. Arsenic can exist in four valency .

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