| BHN | bephenium hydroxynaphthoate; Brinell hardness number |
|---|---|
| KHN | Knoop hardness number |
| MHN | massive hepatic necrosis; Mohs hardness number; morbus hemolyticus neonatorum |
| RHN | Rockwell hardness number |
| VHN | Vickers hardness number |
| hardness | <chemistry> Total concentration of calcium and magnesium ions, expressed as the equivalent concentration (mg/L) of calcium carbonate. Hard water is water that contains lots of calcium carbonate and other minerals. (09 Oct 1997) |
|---|---|
| hardness scale | A qualitative scale in which minerals are classified in order of their increasing hardness, based on the fact that the harder of two materials will scratch the softer and will not be scratched by it. The scale lists 15 substances: 1, talc; 2, gypsum; 3, calcite; 4, fluorite; 5, apatite; 6, orthoclase, periclase; 7, vitreous pure silica; 8, quartz, stellite; 9, topaz; 10, garnet; 11, tantalum carbide, fused zirconia; 12, fused alumina; 13, silicon carbide; 14, boron carbide; 15, diamond. Synonym: Mohs scale. (05 Mar 2000) |
| Brinell hardness number | A number related to the size of the permanent impression made by a ball indenter of specified size (usually 10 mm in diameter) pressed into the surface of the material under a specified load: where P = applied load in kg, D = diameter of the ball in mm, and d = diameter of the impression in mm. (05 Mar 2000) |
|---|---|
| Knoop hardness number | A number obtained by dividing the load in kg applied to a pyramid-shaped diamond of specific size divided by the projected area of the impression: KHN = L/A, where A= the projected area of the impression in mm2 and L= the load in kg; used for measurements of hardness of any materials, especially very hard and brittle substances such as tooth dentin and enamel. (05 Mar 2000) |
| hardness |
the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale unfeelingness: devoid of passion or feeling; hardheartedness the quality of being difficult to do; "he assigned a series of problems of increasing hardness"; "the ruggedness of his exams caused half the class to fail" severity: excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
출처: wordnet.princeton.edu/perl/webwn
|
|---|---|
| hardness |
the ability of a mineral to withstand scratching
출처: www.msnucleus.org/membership/html/k-6/rc/dictionar...
|
| hardness |
The inferior hardness of CZ (8.5 vs. 10 of diamond) manifests itself in the gem's lower luster, rounded facet edges and surface scratches.
출처: www.nationmaster.com/encyclopedia/Cubic-zirconia
|
| hardness |
Property of a mineral's resistance to being scratched.
출처: www.mdk12.org/instruction/curriculum/science/gloss...
|
| hardness |
the amount of calcium carbonate dissolved in water.
출처: www.wef.org/publicinfo/newsroom/wastewater_glossar...
|
| hardness | excessive sternness |
|---|---|
| hardness | the quality of being difficult to do |
| hardness | devoid of passion or feeling |
| hardness | the property of being rigid and resistant to pressure |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|