LEADER 02365aam 2200385I 450 001 9910709553003321 005 20151026040615.0 024 8 $aGOVPUB-C13-b26cd1cbca384351c57f1f2ed1059ded 035 $a(CKB)5470000002479471 035 $a(OCoLC)926749445 035 $a(EXLCZ)995470000002479471 100 $a20151026d1991 ua 0 101 0 $aeng 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 12$aA procedure for the effective recalibration of liquid-in-glass thermometers /$fJacquelyn A. Wise 210 1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d1991. 215 $a1 online resource 225 1 $aNIST special publication ;$v819 300 $a1991. 300 $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes. 300 $aTitle from PDF title page. 320 $aIncludes bibliographical references. 330 3 $aHigh quality liquid-in-glass thermometers require only one complete calibration in their lifetime and it is possible to avoid the usual requirement for complete recalibration of the instrument by the recalibration of a single previously calibrated temperature. The need for recalibration of properly manufactured liquid-in-glass thermometers is due to the gradual relaxation of residual mechanical strains in the glass that have a significant effect on the volume of the bulb. The recalibration of a single point provides a reliable indication of the effect of this change in volume and provides a means for the accurate adjustment of the remainder of the scale. The paper describes a procedure for the single temperature recalibration of liquid-in-glass thermometers that can be performed in the user's laboratory and the subsequent adjustment of the entire scale. The adjustment of the scale that is required by the recent introduction of the new International Temperature Scale (ITS-90) is also described. 700 $aWise$b Jacquelyn A$01400262 701 $aWise$b Jacquelyn A$01400262 712 02$aNational Institute of Standards and Technology (U.S.) 801 0$bNBS 801 1$bNBS 801 2$bGPO 906 $aBOOK 912 $a9910709553003321 996 $aA procedure for the effective recalibration of liquid-in-glass thermometers$93505644 997 $aUNINA