1964
DOI: 10.6028/jres.068a.052
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The 1962 He3 scale of temperatures. I. New vapor pressure comparisons

Abstract: A compari so n o f R c3 and H c' vapor p ress urcs, (P a, P 4 ), has b een made i n a n apparatus d es igned to r edu ce the n umber and magn itud e of correct ions a ssociated w it ll t h e r efiu xin g fi lm in t il e H e' prC'ss u re sens ing t ub e and t he attached bUlb . The cr itical pressure of H ea has bee n red ete rm in ed to be at 873 .0 ± 1.5 mm Hg a t 0° C and standard gravity; t hc correspo nd ing temperatu re as meas ured by a H e' thermometer is 3.3240 ± 0.001 8° Ie on the 1958 H e'scale. T he… Show more

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Cited by 47 publications
(3 citation statements)
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“…Weber [16] of the Physikalisch-Technische Bundesanstalt has made measurements from 0,65 K to 2,9 K with 3 He and from 2,6 K to 5,0 K with 4 He, with (99,73 % confidence level); over these ranges, his results disagree with our results and with up to . We have compared our results with those of RS and El Samahy by plotting our results using the and vapour-pressure/temperature relations [17,18]. Below 1 K, where the values from RS on disagree with those of the 1979 El Samahy measurements, our values on are approximately half-way between the two.…”
Section: Resultsmentioning
confidence: 98%
“…Weber [16] of the Physikalisch-Technische Bundesanstalt has made measurements from 0,65 K to 2,9 K with 3 He and from 2,6 K to 5,0 K with 4 He, with (99,73 % confidence level); over these ranges, his results disagree with our results and with up to . We have compared our results with those of RS and El Samahy by plotting our results using the and vapour-pressure/temperature relations [17,18]. Below 1 K, where the values from RS on disagree with those of the 1979 El Samahy measurements, our values on are approximately half-way between the two.…”
Section: Resultsmentioning
confidence: 98%
“…Noble gas isotopes have found uses in measurement standards [17]. Helium-3 has an exceptionally high vapor pressure at low temperatures (0.5 K) compared to other gases, which accordingly makes it most suitable for the present vapor pressure standard temperature scale at such temperatures.…”
Section: Radiometric Kryptonmentioning
confidence: 99%
“…The pressure i n the manometer was a Before endi ng t h i s section, i t shoul d be menti oned t h a t several discussions on the techniques o f vapor pressure thermometry e x i s t i n the 1 i t e r a t u r e . ~u r i e u x ' s t h e s i s ( 11) and the papers which e s t a b l i s h T6* (4,5,6) were e s p e c i a l l y u s e f u l t o the author.…”
Section: J -mentioning
confidence: 99%