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adopted American Society American Standards Association American Tentative Standard apparatus approved as American approved by ASA ardization ards Arthur Kallet ASA Bulletin Assn Bell System Bell Telephone Laboratories Bureau of Standards cent coal Company construction cooperation cost dimensions draft Edison Illuminating Companies equipment F. J. Schlink factor finish fits gages grade hole inches industry inspection John Gaillard Laboratories lubricating machine manu manufacturers Mechanical Engineers meeting ment metal methods of test mittee motor Nat'l National Electrical Code National Safety Council national standards operation organization paper pipe plant practice preferred numbers production proposed purchasing Railway recommended representatives requirements result revision Safety Code samples screw threads sectional committee shaft sizes soap Society for Testing specifications sponsor stand Standards Committee Standards Council steel subcommittee surface technical committee Telephone Testing Materials tion tolerances types U. S. Bureau U. S. Department Underwriters York