The ASKER Durometer Type B for semi-rigid rubber (from normal hardness to high hardness), as specified by ASTM D2240
It is used for measuring harder specimens, such as earthenware clay or mossed pottery, than the Type A durometer, because the indentor is spring-loaded as in the ASKER Type A, but is a conical shape as in the ASKER
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PRESSURE FOOT
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The Pressure foot in contact with the specimen is 44mm in width and 18mm in depth, wide enough to ensure accurate measurement. The Longer Pressure Foot Type (B type) is applicable for measurement of narrow or concave specimens.
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Standards
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ASTM D 2240
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Indication range
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0 point - 100 point (262 degree dial scale)
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Minimum indication
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1 point (Accuracy : ±1 point)
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Indentor Design (mm)
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Height: 2.50 30°Angle Sharp Cone Point Tip Radius 0.1
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Spring Forces [mN(g)]
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0 point: 550(56)
100 point: 8050(821)
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Central hole of diameter of Pressure foot
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Φ3
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Pressure foot
Dimension (mm)
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44×18(Rectangular)
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Outer Dimension (mm)
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Approx. Width 57×Depth 30×Height 76
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Weight (g)
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200
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Application
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Semi-rigid rubber, Earthenware clay
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