This Standerd is one ofa seris of safery standards o0 various subjects which bhave been formulated under the general auspices of the American National Stuandurds Insitute. One purpose of the Sadard s to serve a guide 1o govenmeatal audhonities having jurisdicton
over subjects within the scope of the Standard. ht is expected, however, that the Standerd will find a major application in industry, serving as a guide to manufactur-ens, purchasen, and users of the equipmeat.
