KERN & SOHN HB - Manual

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [email protected] Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Instruction Manual
HB & TI
HB&TI-BA-e-1311 1
MANUAL SHORE DUROMETER
Shore A
Shore C/ Shore 0
Shore D
Table of contents
1. Features
2. Specifications
3. Method of measurement
4. Maintenance
5. Calibration
1. Features
The hardness of plastics is most commonly measured by
the Shore Durometer, using either the Shore A or Shore D
scale. It is the preferred method for measuring rubbers/
elastomers and it’s also used for “softer” plastics such as
polyolefins, fluoropolymers and vinyls.
Shore A scale is used for “softer” rubbers, while Shore D
scale is used for “harder” ones.
Shore C/ Shore 0 scale is commonly used for tests with
foam rubbers, sponges or microporous plastics.
Designed in regard to these standards:
• DIN 53505
•
ASTM D2240
•
ISO 868
2. Specifications
Shore A Shore C/ 0 Shore D
Model HBA 100-0 HBC100-0 HBD100-0
Indenter Konus 35°
Durchm.1,3
Konus 30°
Tip
dimension SR2,5mm
Depth of in
dentation 0 – 2,5 mm 0 – 2,5 mm 0 – 2,5 mm
Test
pressure ca.12,5 N 12,5 N 50 N
Measuring
spring
force 0,55–8,065N 0,55–8,065N 0,55-44,5N
Display
range Skala von
0 – 100 Skala von
0 – 100 Skala von
0 – 100
Scale
Diameter 55 mm 55 mm 55 mm
Weight.net
(gross) 250g
(300g) 230g
(350g) 250g
(300g)
Dimen-
sions 26x62x115
(LxBxH) mm 26x62x115
(LxBxH) mm 26x62x115
(LxBxH) mm
Thread M7 x 0.5 M7 x 0.5 M7 x 0.5
3. Method of measurement
Shore Durometer, like many other hardness testers,
measures the depth of indentation in the material created
by a given force on a standardized presser foot. The depth
is dependant on the hardness of the material, its
viscoelastic properties, the shape of the presser foot as
well as the duration of the test. Shore durometers allow the
measurement of the initial hardness or the indentation
hardness after a given period of time.
The basic test requires applying the force in a constant
manner without shocks, measuring the hardness (depth of
the indentation). If a timed hardness is desired, force is
applied for the required time and then the measurement
result is to be read.
The tested material should have a thickness of minimum
6.4 mm (0.25 inch).
4. Maintenance
After testing the instrument is to be put back in its packing
box. It should not be stored in following environmental
conditions: wet or dusty area, oil or chemicals.
5. Calibration
First the test plate is to be put on a hard and flat base.
The hardness tester is to be located on the test plate by
placing the measurement tip into the hole of the test plate.
The instrument is to be adjusted by turning the external
ring of the round Display to the setpoint of the test plate.