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Esta norma conjunta da SSPC/NACE define o processo de preparação de uma superfície de aço-carbono ao grau de metal branco de limpeza superficial usando um método de jateamento abrasivo úmido (WAB) de limpeza. Esta norma destina-se ao uso por especificadores, aplicadores e inspetores de revestimentos ou outros cuja responsabilidade seja definir um grau padrão de limpeza superficial para superfícies de aço-carbono a ser alcançada por limpeza por jateamento abrasivo úmido.
A limpeza WAB é um processo que usa uma mistura de água e abrasivo que pode produzir diversos níveis de limpeza e perfil (aspereza) superficial similar aqueles obtidos por limpeza por jateamento abrasivo seco (DAB). A limpeza WAB pode ser especificada quando se deseja supressão de pó, e também pode ser um meio de reduzir a contaminação por sais solúveis. O nível de limpeza WAB especificado deve ser o mesmo que o grau de limpeza especificado correspondente para o processo de limpeza DAB.
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The paper chronicles and discusses the challenges, options, choices and solutions from the design phase through the actual blast cleaning and painting of one of the most unique steel structures in the world, the largest radio telescope at Arecibo, Puerto Rico.
This standard, SSPC-SP 14 (WAB)/NACE WAB-8, defines the "Industrial" level of surface cleanliness for wet abrasive methods. Other levels in overview below.
This standard, SSPC-SP 5 (WAB)/NACE WAB-1, defines the "White Metal" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)
This standard, SSPC-SP 7 (WAB)/NACE WAB-4, defines the "Brush-Off" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)