Asker® Durometer Specifications and Selection Guide |
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This selection guide is designed as a general overview of the many Asker® Durometer styles, types, spring force ranges, and indentor configurations.
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| It may assist in choosing the proper durometer for a particular application, however, it is not to be considered a definitive technical document. |
| Questions regarding specific testing requirements requiring detailed technical information, are freely answered as a service to our customers. |
| Asker® Durometers |
| Dimensions expressed in millimeters (mm). Force expressed in grams (gf). |
| The “Model” column contains a link to the individual page for the listed Asker® Durometer. |
| Model |
Image |
Standard |
Indentor |
Spring Force
Min-Max |
Presser Foot |
Dimensions |
| JA1 |
|
JIS K 6253 |
35º
Frustrum Cone
0.79 R tip
1.27 Ø |
55 - 855 |
44 x 18
Rectangular |
Width 57
Depth 30
Height 76 |
| JC1 |
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JIS K 6253 |
100 - 4500 |
| A1 |
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JIS K 6253
JIS K 7215
ASTM D2240
ISO 7619
ISO 868 |
56 - 821 |
| D1 |
|
JIS K6253
JIS K 7215
ASTM D2240
ISO 7619
ISO 868 |
30º
Cone
0.10 R tip
1.27 Ø |
0 - 4533 |
| B1 |
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ASTM D2240 |
56 - 821 |
| C1 |
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SRIS 0101
(Japan) |
5.08 Ø
Sphere |
55 - 855 |
| C21 |
ASKER C2 |
55 - 455 |
| DD—2 |
 |
1 Indicates availability in the Digital Model DD—2 |
| CS |
|
ASKER CS |
10 Ø Cylinder |
100 - 4500 |
50 Ø Circular |
Width 50
Depth 50
Height 76 |
| FP |
|
ASKER FP |
15 Ø Cylinder |
100 - 200 |
50 x 37 Oval |
Width 50
Depth 37
Height 81 |
| F |
ASKER F |
25.2 Ø Cylinder |
55 - 455 |
80 Ø Circular |
Width 80
Depth 80
Height 81 |
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| Asker® Indentor Designs |
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30° Cone |
Types B and D
Hard Rubber and Plastics |
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Truncated (Frustrum) 35° Cone |
Types A, C, JA and JC
Soft Rubber and Plastics |
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5.08 mm Ø Sphere |
Asker Types C and C2
Softer Rubber & Sponge |
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10, 15 & 25.2 mm Ø Cylinder |
Asker Types F, FP and CS
Urethanes & Foams |
| Asker® Extended Presser Foot Designs |
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10 mm Ø |
Types JAL and JCL |
| 12 mm Ø |
Types AL, DL and BL |
| 16 mm Ø |
Models C1L and C2L |
| Asker® Maximum Reading Hand Design |
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The Maximum Indicating Hand allows for the retention of the maximum indicated reading. This is especially useful with materials that exhibit rapid hysteresis, dynamic stress relaxation, or when it is difficult to instantaneously observe the reading without introducing focal parallax. |
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Index Terms: Asker Durometers, Asker Durometer, Asker Durometer Selection Guide, Asker F, Asker FP, Asker C, Asker C2, Asker CS, Asker, Shore hardness, pocket durometer, Shore scale, hardness, rubber hardness, plastic, plastic hardness, indentation hardness, ebonite, ebonite hardness, rubber hardness testing, rubber testing, hardness testing, durometer hardness, testing, ASTM D2240, D2240, ASTM D1957, ISO 868, ISO 7619, ISO 8517, ISO 7267, ISO 21509, ISO 18517, JIS K6253, JIS K6251, JIS K6252, JIS K 6253, JIS K6254, JIS K6255, JIS K6256, JIS K6257, JIS K6258, JIS K6259, JIS K6260, JIS K7215, DIN 53505, DIN 53 505, CNS, K6898, BS 903, BS 2782, BS ISO 21509, BS EN ISO 868, GB/T 10807, Asker, Asker C, SRIS 0101, MIL-STD-45622A, MIL-I-45208A, MIL-STD-120, 83.060, 83.080, hysteresis, creep, Young's Modulus.
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