If outdoor air is used to provide combustion air to the appliances, there are two test conditions for the combustion appliance assessment: equipment-off and equipment-on. With the equipment off, verify that the CO level in the zone is below the alarm limit and that there is no natural gas leakage.
Defence Industries Queensland: 1  supports national and international prime contractors to find defence capabilities. 2  helps companies working or wishing to work in defence to up-skill and make connections with defence contractors and suppliers. 3  assists the Australian Defence Force to expand its presence in Queensland.
by David Bassanese. Along with the human suffering, the Queensland floods represent the worst type of shock to hit an economy: a negative supply shock. The disruption to coal exports, food production and tourism â in which Queensland plays an important national role â reduces employment and economic activity while also putting upward pressure on prices.