English: Technician (Glyn Hughes) using a smoke pump of American Standard ASTM D2156-65 type to measure emissions from a stove ('Panorama' stove by Portway) at the premises of CSM Chorley Ltd, Lancashire, England
Français : Un tchnicien (Glyn Hughes) utilisant une pompe à fumée American Standard ASTM D2156-65 pour mesurer les émisions dans un tuyau (tuyau 'Panorama' de Portway) à l'ouversture de CSM Chorley Ltd, Lancashire, Angleterre
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