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2. Grain size - Wikipedia

   en.wikipedia.org/wiki/Grain_size

   Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials . This is different from the crystallite size, which refers to the size of a single crystal inside a particle or grain.

3. Particle-size distribution - Wikipedia

   en.wikipedia.org/wiki/Particle-size_distribution

   It may also be presented in "cumulative" form, in which the total of all sizes "retained" or "passed" by a single notional "sieve" is given for a range of sizes. Range analysis is suitable when a particular ideal mid-range particle size is being sought, while cumulative analysis is used where the amount of "under-size" or "over-size" must be ...

4. Propane, butane, and LPG container valve connections

   en.wikipedia.org/wiki/Propane,_butane,_and_LPG...

   1 lb (16 oz) propane bottle (Coleman) 1"-20 CGA600 UNEF 25.4 mm 1.27 mm 1" 20 tpi EXT RH ABNT NBR 13794 ABNT NBR 8614 NPT: 19.1 mm 1.814 mm 3/4" 14 TPI ABNT NBR 8614 a ABNT NBR 8614 NPT: 9.5 mm 3/8" No thread ABNT NBR 8614 b ABNT NBR 8614 NPT: 19.1 mm 1.814 mm 3/4" 14 TPI Bayonet Autogas Bayonet No thread Bayonet camping: N/A No thread EXT N/A

5. Siltstone - Wikipedia

   en.wikipedia.org/wiki/Siltstone

   Silt is defined as grains 2–62 μm in diameter, or 4 to 8 on the Krumbein phi (φ) scale. [7] An alternate definition is that siltstone is any sedimentary rock containing 50% or more of silt-sized particles. [8] Siltstones can be distinguished from claystone in the field by chewing a small sample; claystone feels smooth while siltstone feels ...

6. Physical properties of soil - Wikipedia

   en.wikipedia.org/wiki/Physical_properties_of_soil

   Sand is the most stable of the mineral components of soil; it consists of rock fragments, primarily quartz particles, ranging in size from 2.0 to 0.05 mm (0.0787 to 0.0020 in) in diameter. Silt ranges in size from 0.05 to 0.002 mm (0.001969 to 7.9 × 10 −5 in).

7. Unified Soil Classification System - Wikipedia

   en.wikipedia.org/wiki/Unified_Soil...

   If the soil has 5–12% by weight of fines passing a #200 sieve (5% < P #200 < 12%), both grain size distribution and plasticity have a significant effect on the engineering properties of the soil, and dual notation may be used for the group symbol. For example, GW-GM corresponds to "well-graded gravel with silt."

8. Silt - Wikipedia

   en.wikipedia.org/wiki/Silt

   Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt can also be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average ...

9. Sieve analysis - Wikipedia

   en.wikipedia.org/wiki/Sieve_analysis

   A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, [1] and chemical engineering [2] to assess the particle size distribution (also called gradation) of a granular material by allowing the material to pass through a series of sieves of progressively smaller mesh size and weighing the amount of material that is stopped by each sieve as a fraction ...