Show safety campaign still continues safety standards for flexible gas tubing are announced by the american gas association laboratory the approved tubing will from now on boar bear tho the off official acial seal acal of the association giving the year of manufacture no tubing more than one year old should ever be bought since rubber deteriorates faster in storage than in use it is hoped that both gas appliance dealers and customers will come to demand off officially wally approved equipment to the exclusion of uncertified material al this will materially reduce the possibility of accidents |