A specialist gas testing engineer will check the performance of your appliances with three bottled gases, one of these will be standardised normal gas and the other two will be ‘test gases’ which are a blend of hydrogen and normal gas.
The test gases will be carefully selected based on the laboratory appliance testing programme, and include a suitable safety margin. A range of appliances have already been tested successfully and safely in the laboratory on each of the selected gases. They will provide evidence on how live network appliances perform with blended gas.