|
Model F
Urethane Foam
Sponge
Non-woven Fabric
Model PF
Powder Puff
|
Exclusive type for foam materials,
allowing measurement by placing the tester on the object of measurement.
In addition to Model F, Model FP is available for powder puff.
|
|
Model C & Model C2
Soft Rubber
Urethane Rubber
Sponge
Wound threads(yarn package)
Rolled Films
Potter's Clay(Kaolin)
|
Model C is intended for
hardness measurement of Soft Rubber, sponge, foamed elastomers,
wound threads(yarn package), rolled films, potter's clay(kaolin)
and other such soft materials.
For even softer materials, Model C2 is available.
|
|
Model CS
Polystyrene Foam
|
This features larger indentor
and a more strong spring compared to Model C, thereby making it
more suitable for polystyrene foam.
|
|
Model A
Rubber in general
Softer plastics
|
Has been used for wide
applications since being standardized in the ISO.
|
|
Model JA
Rubber in general
Softer plastics
|
A hardness tester which
conforms with the Japanese Industrial Standards JIS K 6301. One
of the most popular types in Japan, but has recently been gradually
replaced with the ISO-specified Type A.
|
|
Model JAL
Rubber in general (Specially for measurement
of recessed surfaces)
|
Especially useful for recessed
and/or smaller measurement areas. In addition to the standard Model
JAL, long presser foot type are available for another Model applications.
|
|
Model B
Semi-rigid Rubber
Unglazed pottery clay
|
It uses the same spring
load used in Model A. It adopts a conical indentor similar to that
of Model D, so as to be applicable to harder measuring objects than
can be measured by Model A. It is useful for hardness measurement
of unglazed pottery clay and ceramics in green condition.
|
|
Model JC
Semi-rigid Rubber
|
Model JC has those hardness
testers described in JIS K 6301 as 'suitable for samples found to
have a hardness value above 70 according to Model A'. It features
higher resolution for hardness measurement of hard rubber.
|
|
Model D
Hard Rubber
Plastics
|
Similar to Model A, this
model is defined as 'Durometer Type D' as described in various domestic
and international standards. It is in widespread use for hardness
measurement of plastics and hard rubber.
|
Model |
Principal
Standards |
Indentor Design |
Spring Load [g] |
Size & Shape of Presser
Foot [mm] |
Outside Dimension [mm] |
Weight [gr] |
Height
[mm] |
Shape |
0 Degree |
100 Degree |
JA |
JIS K 6301
(Type A)
|
2.54 |
35-Degree. Truncated Cone 0.79 |
55 |
855 |
44 x 18 (rectangular) |
Width 57
Depth 30
Height 76 |
200 |
JC |
JIS K 301
(type C)
|
100 |
4,500 |
A |
JIS K 6253
JIS K 7215
ASTM D 2240
ISO 7619
ISO 868
(Durometer Type-A)
|
2.50 |
56 |
821 |
D |
JIS K6253
JIS K 7215
ASTM D 2240
ISO 7619
ISO 868
(Durometer Type-D)
|
30 Degree Cone Tip Radius 0.1 |
0 |
4,533 |
B |
ASTM D 2240 (Durometer Type-B)
|
56 |
821 |
ASKER C |
SRIS 0101
(SRIS: Society of Rubber Ind., Japanese Standard)
|
2.54 |
5.08 dia. Hemisphere |
55 |
855 |
ASKER C2 |
ASKER C2
|
55 |
455 |
ASKER CS |
ASKER CS
|
10 dia. Circular Cylinder
|
100 |
4,500 |
50 dia. (Circular) |
50 x 50 x 76 |
200 |
ASKER FP |
ASKER FP
|
15 dia. Circular Cylinder |
100 |
200 |
50 x 37 (Oval) |
50 x 37 x 81 |
300 |
ASKER F |
ASKER F
|
25.2 dia. Circular Cylinder |
55 |
455 |
80 dia. (Circular) |
80 x 80 x 81 |
500 |
Indentor Extension Tester for Hardness
Testers
|
A gage to check the extension of an indentor on a hardness tester
and the reading indicator mechanism. Applicable standards specify
two extension, 2,54mm and 2.50mm for an indentor and the indentor
testers are available for two models JA and A corresponding to the
respective extension. Each indentor extension tester set is complete
with two gages, one for hardness value of 50 and the other for hardness
value of 2.
|
|
Hardness Measurement
using Constant Loader for Durometer
|
When attempting to measure hardness manually, inconsistent pressures
and/or speeds are used while pressing the indentor and presser
foot. This causes a problem of deviation in measured results,
To solve this problem, CL-150 Series constant pressure/speed loaders
have been developed. Applicable standards refer to this type of
loader as a 'Durometer Holder.'
|