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21:35 Aug 4, 2019 |
English to Portuguese translations [PRO] Tech/Engineering - Petroleum Eng/Sci / Liquefied Petroleum test | |||||
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| Selected response from: Hilton F Santos Brazil Local time: 04:43 | ||||
Grading comment
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Summary of answers provided | ||||
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4 +1 | grau de metais traço |
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4 | com alto grau de pureza/ultrapuro (trace metal grade) |
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2 +1 | grau TraceMetal |
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trace metal grade grau TraceMetal Explanation: Aqui dá a entender que TraceMetal é uma marca registada: https://www.fishersci.com/shop/products/nitric-acid-tracemet... |
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trace metal grade grau de metais traço Explanation: Trata-se de determinar a concentração de vários contaminantes, dentre eles às dos metais traço. Ver, por exemplo: https://periodicos.ufpel.edu.br/ojs2/index.php/CAST/article/... |
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trace metal grade com alto grau de pureza/ultrapuro (trace metal grade) Explanation: Acho que o que se está buscando é um ácido nítrico com alto grau de pureza, i.e., em que as concentrações de metais sejam traços, no máximo. ""Trace-metal grade" reagents must be used in place of "reagent grade" chemicals because acids, bases and other materials labeled "reagent grade" contain concentrations of metals that will interfere in the determination of trace metals..." (em: http://itepsrv1.itep.nau.edu/itep_course_downloads/Water_QAP... ) |
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