標準號：BS EN 993-17-1999
中文標準名稱：成形密實耐火制品的試驗方法.真空汞法對顆粒狀材料體積密度的測定
英文標準名稱：Methods of test for dense shaped refractory products - Determination of bulk density of granular materials by the mercury method with vacuum
標準類型：Q40
發布日期：1999/5/15 12:00:00
實施日期：1999/5/15 12:00:00
中國標準分類號：Q40
國際標準分類號：81.080
適用范圍：This European Standard specifies the determination of the bulk density of granular refractory materials (grain bulk density) having a grain size greater than 2 mm, by the mercury method with vacuum. NOTE 1 This method is intended as the reference method because of its reproducibility and simplicity in use. However, mercury is known to be a hazardous substance, and therefore the determination of bulk density of granular materials can be carried out according to prEN 993-18. This standard, which defines a method by water with vacuum, is recommended for all routine purposes. Nevertheless, depending on the nature of the material tested, the two methods can give different results. NOTE 2 Under test conditions, applying a mercury pressure of 26,5 kPa, round pores with a diameter ≥ 55 μm and elongated pores with a width ≥ 27,5 μm are penetrated by mercury.