LEADER 02698aam 2200445I 450 001 9910711260603321 005 20120619032355.0 024 8 $aGOVPUB-C13-4054ae43359288269ac3670aa8b8fdfa 035 $a(CKB)5470000002481414 035 $a(OCoLC)795837506 035 $a(EXLCZ)995470000002481414 100 $a20120619d2011 ua 0 101 0 $aeng 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aCertified transmittance density uncertainties for standard reference materials using a tranfer spectrophometer /$fJ. C. Travis, M. V. Smith, S. J. Choquette, Hung-Kung Liu 210 1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d2011. 215 $a1 online resource (14 pages) $cillustrations 225 1 $aNIST technical note ;$v1715 300 $a"CODEN: NTNOEF"--Title page verso. 300 $a"November 2011" 300 $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes. 330 3 $aOverall uncertainties are evaluated for the certification of transmittance density (absorbance referred to air) and regular spectral transmittance for solid neutral density filter Standard Reference Materials by means of a transfer spectrophotometer. Traceability is asserted by means of comparison measurements to a recognized reference spectrophotometer. The uncertainties are evaluated without bias correction, using the combination of the legacy combined standard uncertainty values with uncertainty components for the measured bias, the standard uncertainty of this measured bias, and the standard uncertainty characteristic of simple replication for a single measurement using the transfer spectrophotometer. Numerical results are given, and are anticipated to be the values initially quoted on certificates and in reports of recertification. However, these values are subject to change upon future adjustment of estimated uncertainty components for the filters or changes in the observed bias with future determinations. 606 $aNeutral density filters 606 $aSpectrophotometry 615 0$aNeutral density filters. 615 0$aSpectrophotometry. 700 $aTravis$b John C.$01389082 702 $aChoquette$b S. J. 702 $aLiu$b Hung-Kung 702 $aSmith$b Melody V. 712 02$aNational Institute of Standards and Technology (U.S.) 801 0$bNBS 801 1$bNBS 801 2$bGPO 906 $aBOOK 912 $a9910711260603321 996 $aCertified transmittance density uncertainties for standard reference materials using a tranfer spectrophometer$93490210 997 $aUNINA