CPA1 shows nothing about using a FGA, i have seen the course and some guys bring their own FGA hoping to be shown how to use it only to be told that is not what the course is for its an appreciation of the problems of CO and how to test some appliances and take readings then to decide if the reading is above or below the action level for that type of appliance, the best place to get real advice on how to use a FGA is from the manufacturer
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