Sports and Organization Rules of the International Judo Federation ...

Sports and Organization Rules of the International Judo Federation
4.2 Uniformity test (in g)
(According to Chapter 7.2.1 of standard
EN 12503-4)
Dimensions in cm
The maximum allowable difference
between any of the eight individual points
(average reading between 3 to 5) and the
overall mean shall be +/- 3g.
Results given in report
Test points 1 2 3 4 5 6 7 8
Value noted
Mean value
Absolute deviation
4.3. Peak g and resilience
(According to Chapter 7.2.2 of standard EN 12503-4)
The values shall be in accordance with next table:
Parameters
Sample homogeneous
Indentor diameter (mm)
43 116
Fall height (cm)
Sample not homogeneous
20 60 20 60
Peak deceleration (g) 30 90 40 85
Resilience (%) 30 28 21 28
For each combaison between indentor diameter and height of fall, the test is carried
out in two places on the mat. The value recorded in the test report is the average value
of the two measures.
Test points 1 2 3 4 5 6 7 8
Fall heighl (in cm) 20 60 20 60 20 60 20 60
Indentor diameter (in mm) 43 43 116 116 43 43 116 116
Results given in Report
Temperature °C Hygrometry %
Parameters
Deceleration (g) ≤ ± 2
Restoration coefficient
C.R. (%) ≥ ± 2
Diameter of indentors (mm) 43 116
Fall height (cm) 20 60 20 60
Noted average value
Maximum normative value 30 90 40 85
Noted average value
30 28 32 28
Sample conform
Sample not conform
4.4 Static stiffness
(According to standard EN 12503-7)
The maximum static stiffness value shall not be greater than 9 mm.
Results given in Report
Tests points Test 1 Test 2 Test 3 Test 4
Measured distortion
Distorsion mean
Normative value