02181nam 2200505Ia 450 991070993540332120180711120938.0GOVPUB-C13-fd244d50204432da51a838c2ff10b647(CKB)5470000002474914(OCoLC)132825063(OCoLC)995470000002474914(EXLCZ)99547000000247491420070521d2007 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierCritical frequency estimates for thermowells covered under ASME PTC 19.3 /David S. Bartran, Dean C. Ripple[Gaithersburg, MD] :U.S. Dept. of Commerce, National Institute of Standards and Technology,[2007].1 online resource (7 pages) NISTIR ;7407"March 2007."Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from page [1], viewed April 5, 2007.Includes bibliographical references (page 7).The ASME Performance Test Code, PTC 19.3, establishes the velocity ratings of thermowells in terms of a simplified resonant frequency estimate. The theoretical basis for this is examined and compared with discrete element methods. It is found that the code calculation fails to guarantee conservative velocity ratings for shorter thermowells. The implications of this finding and possible remedies are discussed.Temperature measuring instrumentsTemperature measuring instrumentsfastTemperature measuring instruments.Temperature measuring instruments.Bartran David S1403664Ripple Dean C1390740Chemical Science and Technology Laboratory (U.S.)NBSNBSNBSOCLCQOCLCOOCLCFOCLCQBOOK9910709935403321Critical frequency estimates for thermowells covered under ASME PTC 19.33476783UNINA