標題: ASTM D 6331-1998 來自固定源頭的低濃度氣體中微粒物質濃度檢... [打印本頁] 作者: 兌水 時間: 2009-10-23 14:35 標題: ASTM D 6331-1998 來自固定源頭的低濃度氣體中微粒物質濃度檢... D6331-98 Standard Test Method for Determination of Mass Concentration of Particulate Matter from Stationary Sources at Low Concentrations (Manual Gravimetric Method)