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| hardness Resistance of a solid to indentation, scratching, abrasion or cutting; water hardness The amount of calcium and magnesium salts dissolved in water; alkalinity; calcium-content | |||
| indentation hardness | |||
| static ball penetration hardness | |||
| hardness | |||
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| water hardness | |||
| hårdhed: 35 phrases in 6 subjects |
| Chemistry | 3 |
| Earth sciences | 1 |
| Industry | 3 |
| Metallurgy | 25 |
| Technology | 2 |
| Transport | 1 |