01399aam 2200397I 450 991071008850332120151118015320.0GOVPUB-C13-d58fc8c28fd54969608a8dc74b0d85ef(CKB)5470000002475388(OCoLC)929880378(EXLCZ)99547000000247538820151118d1973 ua 0engrdacontentrdamediardacarrierSystem for preparation of known concentrations of methane in air /Ernest E. Hughes; William D. Dorko; John K. TaylorGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1973.1 online resourceNBSIR ;73-2551973.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Hughes E. E1390269Dorko William D1393344Hughes E. E1390269Taylor John K95171United States.National Bureau of Standards.NBSNBSGPOBOOK9910710088503321System for preparation of known concentrations of methane in air3454748UNINA