MANUALP/4000_SERVICE_0712 July2012
6
SECTION 1 DEFINITION OF TERMS
For the purpose of our standard specifications the following definitions shall
apply:
a) WORKING SPACE
That portion of the internal space which is above the lowest shelf and
not less than 5cm from any wall (including roof).
b) CHAMBER TEMPERATURE
That temperature at the centre of the working space.
c) SPATIAL VARIATION
The difference between the midrange of all measured temperatures
obtained at one site and that at another site for those sites which give the
greatest difference.
d) TEMPORAL VARIATION
The maximum value of the temperature range obtained for the standard
site with the greatest range throughout the test interval.
e) TEMPERATURE OVERSHOOT
Any excess of actual over desired chamber temperature during a
heating up period.
f) TEMPERATURE REPRODUCIBILITY
Temperature regained without alteration to controls.
g) TEST INTERVAL
Interval of time to which the steady state characteristics apply (Max 1
hour).
NB: All the above apply with an empty chamber.
For definitions and test methods refer: AS2853 : 1986 (and Appendices)