标准号:BS EN 993-17-1999
中文标准名称:成形密实耐火制品的试验方法.真空汞法对颗粒状材料体积密度的测定
英文标准名称:Methods of test for dense shaped refractory products - Determination of bulk density of granular materials by the mercury method with vacuum
标准类型:Q40
发布日期:1999/5/15 12:00:00
实施日期:1999/5/15 12:00:00
中国标准分类号:Q40
国际标准分类号:81.080
适用范围: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.
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.
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