Gas analysers gain independent accreditation.
On the 1 March 2007 a new European standard relating
to portable electronic apparatus designed to measure
combustion flue gas parameters from heating appliances
will come into force.
This new European standard will supersede the current BS 7927
standard. All flue gas analysers purchased after 1 March 2007
should conform to BS EN 50379. The Testo 330 and Testo 335
flue gas analysers have recently been independently tested by
TUV SUD - an internationally recognised German testing authority -
and have been accredited for conformity with BS EN 50379-1/2/3.
This new standard tests the function of the analyser in a number of
areas including accuracy, repeatability, stability and temperature
drift. In addition, the analysers are subjected to a number of tests
which confirm the durability and performance of the instrument,
including drop test, impact strength, vibration, a cold start test and
testing of the filters and condensate trap.