Show OA gas lek leaks an any of dis gas gai no mt maiter matter tei tel how mall may bo dangerous 1 although 4 the quantity of e gas escaping may appear tobe tobb to be insufficient to cause or explosion it li Is never pos to bt 6 aure jure 6 of 61 this without a chernic chemical al analysis of the mixture ml iture hence a person should hould never regard an air sas fac mixture as a safe and when even light slight escape of gas as Is noted shut off any equipment using the kas as and immediately provide as much ventilation as possible |