This Standard is one of a series of safety standards on various subjects which have been formulated under the genera!l auspices of the American National Standards Institute. One purpose of the Standard is to serve as a guide to govemmental authorities having jurisdiction over subjects within the scope of the Standard. It is expected, however, that the Standard will find a major application in industry, serving as a guide to manutacturers, purchasers, and users of the equipment.
