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再現(xiàn)放射性超標!山東口岸退運超標耐火磚 貨值25萬歐元

關鍵詞 耐火材料 , 放射性|2016-10-28 10:22:56|來源 大眾網
摘要 26日,記者從山東檢驗檢疫局例行新聞發(fā)布會得知,山東黃島檢驗檢疫局近日對1批法國進口放射性超標耐火磚作退運處理,該批貨物重144噸、貨值25.9萬歐元,共計10個20呎集裝箱。該批...
       26日,記者從山東檢驗檢疫局例行新聞發(fā)布會得知,山東黃島檢驗檢疫局近日對1批法國進口放射性超標耐火磚作退運處理,該批貨物重144噸、貨值25.9萬歐元,共計10個20呎集裝箱。
       該批耐火磚進境時以木質包裝進行申報,在經過查驗區(qū)通道式放射性檢測儀時報警,經現(xiàn)場檢測初步確認超標主要放射性元素為鐳-226。經取樣送實驗室進行核素分析,該批貨物鐳-226放射性活度濃度為1.55Bq/g,超出國家標準《可免于輻射防護監(jiān)管的物料中放射性核素活度濃度》(GB 27742-2011)中規(guī)定的天然放射性核素免管濃度值應小于1Bq/g的限值。同時該批貨物外照射指數(shù)Ir為5.05,超出國家標準《建筑材料放射性核素限量標準》(GB6566-2010)對C類裝修材料Ir≦2.8的要求,屬于放射性超標物質,禁止用于建筑主體材料和裝飾材料(包括工業(yè)建筑)。
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