01487aam 2200397I 450 991070956170332120151026040613.0GOVPUB-C13-cca74edfe115a7f8170509d8e3632590(CKB)5470000002479383(OCoLC)926748710(EXLCZ)99547000000247938320151026d1998 ua 0engrdacontentrdamediardacarrierStandard reference materials film step tablet standards of diffuse visual transmission density - SRM 1001 and SRM 1008 /Edward A. Early, Thomas R. O'Brian, Albert C. ParrGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1998.1 online resourceNIST special publication ;260-1351998.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Standard reference materials Early Edward A1391862O'Brian Thomas R(Thomas Raymond)1391863Parr A. C(Albert C.)1391864National Institute of Standards and Technology (U.S.)NBSNBSGPOBOOK9910709561703321Standard reference materials3445955UNINA