The Kelvin and temperature measurements.

From: Journal of Research of the National Institute of Standards andTechnology | Date: January 1, 2001| Author: Furukawa, G.T.; Gibson, C.E.; Johnson, B. Carol; Kreider, K.G.; Mangum, B.W.; Meyer, C.W.; Moldover, M.R.; Ripple, D.C.; Saunders, R.D.; Strouse, G.F.; Tew, W.L.; Yoon, H.W. | Copyright information

The International Temperature Scale of 1990 (ITS-90) is dcfined from 0.65 K upwards to the highest temperature measurable by spectral radiation thermometry, the radiation thermometry being based on the Planck radiation law. When it was developed, the ITS-90 represented thermodynamic temperatures as closely as possible. Part I of this paper describes the realization of contact thermometry up to 1234.93 K, the temperature range in which the ITS-90 is defined in terms of calibration o...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Temperature scale conversions.(Illustration)
Ceramic Industry ; Temperature Scale Conversions From From Convert From From F to K F to C F, C or K C to F K to F 244.3 -28.9 -20.0 -4.0 -- 249.8 -23.3 -10.0 14.0 -- 255.4 -17.8 0.0 32.0 -459.7 260.9 -12.2 10.0 50.0 -441.7 266.5 -6.7 20.0 68.0 -423.7 272.0 -1.1 30.0 86.0 -405.7 277.6 4.4 40.0 104.0 -387.7 283.2 10.0
Treasure of the Past VI: Standard Potential of the Silver-Silver-Chloride Electrode from 0[degrees] to 95[degrees] C and the Thermodynamic Properties of Dilute Hydrochloric Acid Solutions.(Statistical Data Included)
Journal of Research of the National Institute of Standards and Technology ; From electromotive-force measurements of the cell without liquid junction: Pt; [H.sub.2], HCl (m), AgCl; Ag through the range 0[degrees] to 95[degrees] C, calculations have been made of (1) the standard potential of the silver-silver-ehloride electrode, (2) the activity eoeffieient of hydrochloric
Age-hardenable nickel-base alloy: RA718 (UNS N07718) is a nickel alloy precipitation hardened by gamma prime and double prime. It is readily fabricated and is weldable even in the aged condition. The alloy is used for gas turbine components at temperatures up to 650[degrees]C (1200[degrees]F) as well as for cryogenic equipment.(Alloy Digest Data Sheet)
Advanced Materials & Processes ; ALLOY 718 is strengthened by a precipitation hardening reaction involving columbium, titanium, aluminum, and nickel, with a degree of solid-solution strengthening by molybdenum. For alloy RA718, two commonly used heat treatments are as follows. * Treatment I: Anneal at 925-1010[degrees]C
Determination of the non-uniqueness of the international temperature scale of 1990. (News Briefs).(Brief Article)
Journal of Research of the National Institute of Standards and Technology ; In the range --259 [degrees]C to 962 [degrees]C, temperatures on the International Temperature Scale of 1990 (ITS-90) are defined at a set of natural fixed-points that have assigned temperature values. Between these fixed points, standard platinum resistance thermometers (SPRTs) are used as
Alltel'stealing' 360 Degrees, telecom analyst says. (Alltel Corp.; 360 Degrees Communications Co.; Sal Muioio of S. Muoio and Co.)(includes related article on Alltel's board of directors)
Arkansas Business ; ... telephone service in the southeast and introduce Alltel to new territory in the Midwest, Las Vegas and part of New Mexico. But news of the merger sent both company's stocks tumbling. Alltel's stock peaked at $48.81 in mid-March, before the deal was announced ...
Alltel's buy of 360 Degrees fits 'like hand in glove.' (Alltel Corp.; 360 Degrees Communications Co.)
Arkansas Business ; ... this is business, and in terms of a fit with another company, it couldn't be better. In an interview last week with the Reuters news service, Ford and Foster said Alltel was not trying to dress itself up to become an attractive takeover candidate. They also ...
Why 15[degrees]? (Letters to the Editor).
Engineered Systems ; While reading Timothy Coyle's August 2002 Current Affairs column (page 32), I was struck by the idea of using the 15[degrees] delta T for a 95[degrees]F design day. My first impression was, Why 15[degrees]? In my first job out of college, working with power plant ventilation, I was taught to use a
Internal Oven Provides Voltage Reference Less Than 1-ppm/[degrees]C Drift.(Technology Information)
Electronic Design ; When precision voltage-reference requirements demand less than 1-ppm/[degrees]C temperature drift, the designer can choose to use expensive components (off-the-shelf modules) or build a custom oven enclosure. This second choice is common among cost-sensitive designs where a less-expensive IC
Developments in coatings for high-temperature corrosion protection: this paper describes development of new products in high-temperature corrosion protection, the difficulties encountered in the development of a non-zinc high temperature coating for use up to 400[degrees]C, and an alternative approach to thermal insulation with in-built corrosion and damage resistance.
Coatings World ; The right coatings system correctly applied on structural steel and tankage in process plants can confidently be expected to give good corrosion protection for periods between 10 and 20 years. However on hot areas both atmospheric, with temperatures up to 500[degrees]C, and protection under
Properties of TiAl sheet pack-rolled at temperatures below 1000 [degrees]C
Metallurgical and Materials Transactions ; TiAl alloy specimens with microcrystalline (MC, grain size is 5 [mu]m) and submicrocrystalline (SMC, grain size is 0.4 [mu]m) structures were successfully pack-rolled to sheet with a thickness down to 0.4 mm in the temperature ranges of 800 [degrees]C to 1000 [degrees]C and 900 [degrees]C to 1000