The ASKER Durometer Type E for soft rubber (low hardness), as specified by JIS K 6253-3 and ISO 48-4.
The application is the same as the standard ASKER Durometer Type C

Widely used for measuring soft rubber, sponges, and other foam elastomers, as well as rolled-threads, -films and textile windings (yarn packages).

Standards
  • JIS K 6253-3
  • ISO 48-4
Indication range
0 point – 100 point (262 degree dial scale)
Minimum indication
1 point (Accuracy : ±1 point)
Indentor Design (mm)
Height: 2.50 5.00 Dia. Spherical
Spring Forces [mN(g)]
0 point:  550(56)
100 point:  8050(821)
Central hole of diameter of Pressure foot
Φ5.5
Pressure foot Dimension (mm)
44×18(Rectangular)
Outer Dimension (mm)
Approx. Width 57×Depth 30×Height 76
Weight (g)
200
Application
soft rubber, urethane foam, rubber roller

Indentor

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Height: 2.50mm Shape: Spherical

Hardness Tester Selection Chart

Hardness Tester Selection Chart

Our product line consists of various types of durometers applicable to specific materials as indicated in the chart above.

Type A Durometer (ASKER A type), conforming to JIS K 6253-3 is the most popular type of durometer for measuring rubber hardness.

However, verification is recommended because a significant difference is estimated to be the largest when a durometer indicates measurement values from 10 to 90 points.

For hard specimens for which Type A Durometer readings indicate more than 90 points, measurements should be undertaken using the Type D Durometer (ASKER D type). However, for soft specimens with measurements of less than 20 points, the ASKER C type or Type E Durometer (ASKER E type) should be used. The most important consideration in using durometers is to select the correct type for purposes of measurement according to the specimen.

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