(二)容重(假比重)bulk density(ρb)(BD)概念:田间自然垒结状态下单位容积土体(包括土粒和孔隙)的质量或重量(克/厘米3或吨/米3)。曾称土壤假比重(appare specific gravity)。质量以105-110℃下烘干土计,也有人叫干容重。 湿容重(wet bulk density).t=Mt/Vt=Ms+Mw/(Vs+Vw+Va)也有文献叫土壤总容重(...
Properties that have been provided, when available, include: the melting point, boiling point, density or specific gravity, optical rotation, ultraviolet absorption, solubility, and acute toxicity. The major uses of most of the chemicals ... G Articles,G Shapes - 《Astm》 被引量: 30发表: 200...
Standard Test Method for Bulk Density And Specific Gravity of Plastic Lumber and Shapes by Displacementdoi:ASTM D6111-241.1\n本试验方法涵盖了塑料木材及其"制造"形状的堆积密度和比重的测定.因此,这是一种评估塑料木材或形状作为产品性能的试验方法,而不是材料性能试验方法.\n1.2\n该试验方法适用于通过将...
The relative density of lunar soil The specific gravity and minimum and maximum bulk densities were determined for three one-gram lunar soil samples containing particles less than 1 mm in diameter: 14163,148; 14259,3; and 15601,82. The specific gravity varied from 2.90 to... WDI Carrier,JK...
Designation: C373 − 14aStandard Test Method forWater Absorption, Bulk Density, Apparent Porosity, andApparent Specific Gravity of Fired Whiteware Products,Ceramic Tiles, and Glass Tiles 1This standard is issued under the fixed designation C373; the number immediately following the designation ...
Density range 0.001-99.999 g/cm3 0.0001-99.9999g/cm3 Weighing accuracy 0.005g 0.001g Maximum weighing 300g 120g Measuring type Any solution can be measured Result display Density value Specific gravity measuring frame Stainless steel specific gravity measuring frame Function setting...
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Article: Potential of Sphagnum peat for improving soil organic matter, water holding capacity, bulk density and potato yield in a sandy soil
New alloy variants were created by attempting to decrease the percent- age of dense elements, such as zirconium and copper, while maximizing the low-density element beryllium. The process was stopped at the composition the critical casting thickness of the alloy dTei4c0rZera2s0iCngu1b0eBleo3w0...
Motivated by the importance of foam stability in various applications including oil recovery, the specific objectives of the present work are to study systematically the stability of foams and the effects of oil properties (i.e., viscosity and density) on foam stability at bulk- and bubble-scale...