ASTM D653-14
有关土壤, 岩石和其内部所含液体的标准术语
Standard Terminology Relating to Soil, Rock, and Contained Fluids
- 标准号
- ASTM D653-14
- 发布
- 2014年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM D653-20
- 当前最新
- ASTM D653-22
- 引用标准
- ASTM C150 ASTM C802 ASTM D1557 ASTM D1883 ASTM D2435 ASTM D2487 ASTM D4043 ASTM D4044 ASTM D4050 ASTM D4104 ASTM D4105 ASTM D4106 ASTM D4186 ASTM D4253 ASTM D4254 ASTM D4318 ASTM D4429 ASTM D4750 ASTM D4943 ASTM D5084 ASTM D5088 ASTM D5092 ASTM D5269 ASTM D5270 ASTM D558 ASTM D5878 ASTM D6026 ASTM D6028 ASTM D6029 ASTM D6312 ASTM D6910/D6910M ASTM D6913 ASTM D698 ASTM D7099 ASTM D7382 ASTM D854 ASTM E691
- 适用范围
3.1 Definitions in this standard are to be regarded as the correct ones for terms found in other ASTM standards of Committee D18. Certain terms may be found in more than one standard issued under the jurisdiction of this committee and many of these terms have been placed in this standard.
3.2 Terms that are defined in some textbooks may differ slightly from those in this terminology standard. Definitions in this terminology standard are to be regarded as correct for ASTM usage.
3.3 See Appendix X1 for References.
3.4 Definitions marked with (ISRM) are included for the convenience of the user and were taken directly from the International Society for Rock Mechanics (see X1.3).
3.5 A number of the definitions include symbols. The symbols appear in italics immediately after the name of the term.
3.5.1 No significance should be placed on the order in which the symbols are presented where two or more are given for an individual term.
3.5.2 The symbols presented are examples; therefore, other symbols are acceptable.
3.5.3 See Appendix X2 for ISRM Symbols.
3.6 A number of definitions indicate the units of measurements in brackets and which follow the symbol(s) if given. The applicable units are indicated by italic capital letters, as follows:
8199;D—Dimensionless
8199;F—Force, such as pound-force, ton-force, newton
8199;L—Length, such as inch, foot, millimeter, and meter4
8199;M—Mass, such as kilogram, gram
8199;T—Time, such as second, minute3.6.1 Positive exponents designate multiples in the numerator. Negative exponents designate multiples in the denominator. Degrees of angle are indicated as “degrees.”
3.6.2 Expressing the units either in SI or the inch-pound system has been purposely omitted in order to leave the choice of the system and specific unit to the engineer and the particular application, for example:
8199;FL−2—may be expressed in pounds-force per square inch, kilopascals, tons per square foot, etc.
8199;LT−1—may be expressed in feet per minute, meters per second, etc.水体反射光谱与水的状态、所含能量、水中有机质、水藻、泥沙等有关。4植被的反射光谱特征地面植物具有明显的光谱反射特征，不同于土壤、水体和其他的典型地物，植被对电磁波的响应是由其化学特征和形态学特征决定的，这种特征与植被的发育、健康状况以及生长条件密切相关。 ...
核磁共振应用岩土孔隙结构分析和孔隙度测量
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非金属材料的性能指标术语，值得收藏！
21表面张力和表面能(Surface tension and surface energy)液体内部分子的吸引力使表面上的分子处于向内一种力作用下，这种力使液体尽量缩小其表面积而形成平行于表面的力，称为表面张力。或者说是液体表面相邻两部分间单位长度内的相互牵引力，它是分子力的一种表现。表面张力的单位是N／m。表面张力的大小与液体的性质、纯度和温度有关。表面张力乘表面的面积即为表面能。...