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Gems catalogue 2012 2013 low.pdf


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Testing and Certification for Footballs
OUTDOOR FOOTBALL TEST CRITERIA • The minimum requirements for footballs for “IMS International Matchball Standard” are defined as follows
Property

Criteria for International Matchball Standard

Specifications

Ball Size 5

Ball Pressure

Weight

410 - 450 grams

ball pressure: 0.8 bar

Circumference

68.0 - 70.0 cm

ball pressure: 0.8 bar

Sphericity

max. 1.8 %

ball pressure: 0.8 bar

Loss of Pressure

25%

ball pressure: 1.0 bar at start of the test
max. loss of air after 3 days (72 h)

Water Absorption

average water uptake of the initial weight of the tested balls: 15%
max. water uptake per ball not to exceed 20%

ball pressure: 0.8 bar tank filled with water
2 cm height - 250 compressing downs with constant ball rotation,
ball deformation max. 25%

Rebound

at 20°C: 125 - 155 cm at 5°C: min. 115 cm - max. difference
between lowest and highest re- bound per ball tested: 10 cm

ball pressure: 0.8 bar
balls being dropped 10 times (on to different panels) from a height
of 2 meters on to a steel plate

FUTSAL FOOTBALL TEST CRITERIA • No Feltballs are being permitted for international matches
Property

IMS

Specifications

Weight

400 - 440 grams

ball pressure: 0.6 bar

Circumference

62.0 - 64.0 cm

ball pressure: 0.6 bar

Sphericity

max. 1.8 %

ball pressure: 0.6 bar

Loss of Pressure

max. 25%

ball pressure: 0.6 bar at the start of the test max. loss of air after 3
days (72h)

Balance

max. 7.5°

ball pressure: 0.6 bar
ball being rolled down an inclined slope onto a table with predetermined rolling direction/angle deviation of rolling direction is
measured.

Rebound

50 - 65 cm

ball pressure: 0.6 bar
each ball being dropped from a height of 2 meters onto a wooden
floor

Tests will be conducted
at room temperature
(approx. 20°C) and 65%
humidity.
Exception: Rebound
measured at 20°C
and 5°C.