|
BALL |
MEASUREMENT |
ITF
SPECIFICATION |
SAMŽ
BALL |
SAMŽ
BALL AVERAGE |
|
|
Weight |
Grams |
56.0-59.4 |
57.2-58.3 |
57.8 |
|
|
Diameter |
Millimeters |
65.0-68.6 |
65.0-65.7 |
65.3 |
|
|
Seam Width |
Millimeters |
- |
3.0-5.0 |
- |
|
|
Color |
Yellow |
- |
- |
- |
|
|
Rebound Drop Test |
Height 254 cm |
135-147 |
135-136 |
135 |
|
| |
|
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|
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|
FELT |
MEASUREMENT |
TESTING
RESULTS |
MATERIAL
USED |
TYPE |
|
|
Construction Type |
- |
- |
Woven Felt |
Extra Heavy Duty Felt |
|
|
Material Composition |
- |
- |
48 +/- 4% Wool,
36 +/- 3% Nylon
12 +/- 2% Cotton |
|
Thickness |
Millimeters |
2.9-3.3 |
|
|
|
|
Weight |
Oz. /Yd2 |
20.0-22.0 |
|
|
|
|
Felt Adhesive
Composition |
Latex 60 - 20% |
|
|
|
|
|
Felt Wear |
Grams |
5min: 0.98gm,
10min:1.6gm,15min:2.41gm,20min: 3.32gm |
|
Logo Durability |
Minutes |
Logo still readable
after 20 minute abrasion test |
| |
|
|
|
|
|
|
CORE |
MEASUREMENT |
TESTING
RESULTS |
|
|
|
|
Material Composition |
Natural + Synthetic
Rubber |
- |
|
|
|
|
Weight |
Grams |
44.5-45.5 |
|
|
|
|
Thickness |
Millimeters |
3.8-4.0 |
|
|
|
|
Diameter |
Millimeters |
60.25-60.75 |
|
|
|
|
Hardness |
Shore A |
75.0-76.0 |
|
|
|
| |
|
|
|
|
|
|
WHACK
TEST |
MEASUREMENT |
TESTING
RESULTS |
|
|
|
|
Ball Tear |
150 Times/1100RPM |
Passed |
|
|
|
|
Felt Tear |
150 Times/1100RPM |
Passed |
|
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| |
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