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  2. Janka hardness test - Wikipedia

    en.wikipedia.org/wiki/Janka_hardness_test

    When testing wood in lumber form, the Janka test is always carried out on wood from the tree trunk (known as the heartwood), and the standard sample (according to ASTM D143) is at 12% moisture content and clear of knots. [3] The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the ...

  3. Bamboo floor - Wikipedia

    en.wikipedia.org/wiki/Bamboo_floor

    The hardness of traditional bamboo flooring ranges from 1180 (carbonized horizontal) to around 1380 (natural), while newer manufacturing techniques including strand woven bamboo flooring range from 3000 to over 5000 using the Janka hardness test.

  4. Lignum vitae - Wikipedia

    en.wikipedia.org/wiki/Lignum_vitae

    Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...

  5. Choose the Right Hardwood Floor For You With These Tips - AOL

    www.aol.com/choose-hardwood-floor-tips-163900650...

    Durability: Cherry dents easily at a 950 on the Janka scale (which measures relative hardness of particular wood species), so limit it to areas like bedrooms and protect with rugs. Price Point ...

  6. Mechanical testing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_Testing

    Hardness Testing. Vickers hardness test (HV), which has one of the widest scales; Brinell hardness test (HB) Knoop hardness test (HK), for measurement over small areas; Janka hardness test, for wood; Meyer hardness test; Rockwell hardness test (HR), principally used in the USA; Shore durometer hardness, used for polymers; Barcol hardness test ...

  7. Indentation hardness - Wikipedia

    en.wikipedia.org/wiki/Indentation_hardness

    Janka hardness test, for wood; Meyer hardness test; Rockwell hardness test (HR), principally used in the USA. HRA, HRB and HRC scales are most widely used. [9] Shore hardness test, for polymers, widely used in the rubber industry. [10] Barcol hardness test, for composite materials.

  8. Hardness scales - Wikipedia

    en.wikipedia.org/wiki/Hardness_scales

    The Janka hardness test; The Rockwell scale; The Durometer scale; ... Hardness scales may also refer to: Methods of measuring the deposit formation by hard water.

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