IAAF Calibration and Testing Manual - Asian Athletics Association

IAAF Calibration and Testing Manual
Individual Wind Gauge Calibration
Each wind gauge on sale shall be supplied with a calibration certificate stating
the uncertainty of calibration for a test over a 10 second interval at a velocity
of + 2.0m/s. Such calibration certificates may be provided by the manufacturer
if their test facility has been accredited by the national accreditation authority.
Recalibration
Each wind gauge shall be tested over a 10 second interval at a velocity of
+2.0m/s every four years. Simple test procedures that federations may
consider are given hereunder.
Comparison Testing
A wind gauge that has a current traceable calibration certificate may be used
as a reference measure for other wind gauges. The wind gauges to be
checked and the reference wind gauge should be set up in an open field when
there are constant light winds with the measurement directions parallel to
each other and the general wind direction.. At least five comparison measures
of wind speed in the range of 1 to 3 metres per second but preferably as close
to 2 metres per second as possible over a 10 second interval should be taken.
Provided the average difference between the wind readings for the wind
gauge being checked compared with the wind speeds of the reference wind
gauge is not more than ±0.1metres per second then the wind gauge being
tested may be certified as being in calibration. An appropriate sticker should
be attached to the wind gauge indicating the date of test, the tester’s name
and the reference wind gauge’s identification number. The test results should
be filed by the Technical Manager for future reference.
Edition 2010 14