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2. Sclerometer - Wikipedia

   en.wikipedia.org/wiki/Sclerometer

   The Turner-Sclerometer test consists of measuring the amount of load required to make a scratch. [1] [2] In test a weighted diamond point is drawn, once forward and once backward, over the smooth surface of the material to be tested. The hardness number is the weight in grams required to produce a standard scratch.

3. Scratch hardness - Wikipedia

   en.wikipedia.org/wiki/Scratch_hardness

   Scratch hardness test or scratch test refers to any of a number of methods of measuring scratch hardness. Resistance to abrasion is less affected by surface variations than indentation methods. Scratch hardness is measured with a sclerometer. [1] Attempting to scratch a surface to test a material is a very old technique. [2]

4. Skin allergy test - Wikipedia

   en.wikipedia.org/wiki/Skin_allergy_test

   Skin scratch test: a deep dermic scratch is performed with help of the blunt bottom of a lancet. [3] Intradermic test: a tiny quantity of allergen is injected under the dermis with a hypodermic syringe. Skin scrape Test: a superficial scrape is performed with help of the back of a needle to remove the superficial layer of the epidermis. [4]

5. Scratch test (disambiguation) - Wikipedia

   en.wikipedia.org/wiki/Scratch_test_(disambiguation)

   A Scratch test may refer to: The skin allergy test used in the medical diagnosis of allergies; Scratch hardness tests, such as Mohs scale of mineral hardness, used to measure the scratch resistance of various minerals; Liver scratch test, used by medical professionals to ascertain the location and size of a patient's liver during a physical ...

6. Liver scratch test - Wikipedia

   en.wikipedia.org/wiki/Liver_scratch_test

   The liver scratch test can be used when other exam techniques used to approximate liver size are ineffective or unavailable [2] and is thought to be most useful if the abdomen is distended, too tender for direct palpation, the abdominal muscles are too rigid, or the patient is obese. [3]

7. Android (operating system) - Wikipedia

   en.wikipedia.org/wiki/Android_(operating_system)

   Google was starting from scratch with zero percent market share, so it was happy to give up control and give everyone a seat at the table in exchange for adoption. Now, though, Android has around 75–80 percent of the worldwide smartphone market—making it not just the world's most popular mobile operating system but arguably the most popular ...

8. Eddy-current testing - Wikipedia

   en.wikipedia.org/wiki/Eddy-current_testing

   In principle, LET represents a modification of the traditional eddy current testing from which it differs in two aspects, namely (i) how eddy currents are induced and (ii) how their perturbation is detected. In LET eddy currents are generated by providing the relative motion between the conductor under test and a permanent magnet(see figure).

9. Electrometer - Wikipedia

   en.wikipedia.org/wiki/Electrometer

   Kolbe electrometer, precision form of gold-leaf instrument. This has a light pivoted aluminum vane hanging next to a vertical metal plate. When charged the vane is repelled by the plate and hangs at an angle.