Đồng hồ đo độ cứng cao su Asker Durometer Type A
Hãng: Asker - Nhật Bản
Model: Type A
Xuất xứ: Nhật Bản
Thông số kĩ thuật:
ASKER Durometer Type A
The Type A Durometer for general rubber (Normal hardness )
The mainstream product used world-wide for measuring various kinds of rubbers, and specified in the standards of JIS K 6253, ASTM D 2240, ISO 7619, DIN53505, etc.
Indentor: Height: 2.50mm Shape: Flat Cone Point
Pressure foot: The Pressure foot in contact with the specimen is 44mm in width and 18mm in depth, wide enough to ensure accurate measurement.
Another type of durometer with an 18mm diameter pressure foot is available. In addition, the Longer Pressure Foot Type (AL Type) is applicable for measurement of narrow or concave specimens.
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 6235 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.
Standards: JIS K 6253; JIS K 7215; ASTM D 2240; ISO 7619; ISO 868; DIN 53505
Indication range: 0 point - 100 point (262 degree dial scale)
Minimum indication:1 point (Accuracy : ±1 point)
Indentor Design (mm)Height: 2.50 35°Angle Flat Cone Point 0.79 Dia.
Spring Forces [mN(g)]:
0 point: 550(56)
Pressure foot Dimension (mm): 44×18(Rectangular)
Outer Dimension (mm)Approx. Width 57×Depth 30×Height 76
Weight (g): 200
Application: general rubber
|Hãng sản xuất||Asker|
|Xuất xứ||Nhật bản|
|Phân loại||Thước đồng hồ|