1、Designation: E1751/E1751M 091Standard Guide forTemperature Electromotive Force (emf) Tables for Non-Letter Designated Thermocouple Combinations1This standard is issued under the fixed designation E1751/E1751M; the number immediately following the designation indicates the yearof original adoption or
2、, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEUnits information and designation was corrected editorially in June 2009.1. Scope1.1 T
3、his guide consists of reference tables that givetemperature-electromotive force (emf) relationships for specialpurpose, limited use, thermocouple combinations that do nothave a letter designation.1.2 Extension wire or compensating extension wires are notcovered by this guide. ASTM MNL 122or thermoco
4、uple alloysuppliers should be consulted.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two sy
5、stems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:3E344 Terminology Relating to Thermometry and Hydrom-etryE696 Specification for Tungsten-Rhenium Alloy Thermo-couple Wire3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this guide see
6、Termi-nology E344.3.2 Definitions of Terms Specific to This Standard:3.2.1 matched pairs, na set of positive and negativethermoelements chosen so that a thermocouple fabricated fromthese thermoelements will match a specified temperature-elctromotive force relationship to within a specified tolerance
7、,at the time of first use.4. Source of Data4.1 The data in these tables are based on the SI Volt and theInternational Temperature Scale of 1990.4.2 All temperatureelectromotive force data in Tables 1-20have been developed from NIST, NRC, and wire manufactur-ers data.4.3 Tables 1-16 give emf values i
8、n millivolts to threedecimal places (1 V) at 1 C or 1 F intervals. Tables 17-20give emf values in microvolts to one decimal place (0.1 V) at1 C or 1 F intervals. If greater precision is required, refer tothe equation and coefficients listed for each thermocouplealloy.5. Significance and Use5.1 These
9、 thermocouple combinations have been developedfor specific applications by the wire manufacturer(s). If addi-tional information is required, consult ASTM MNL 12 or oneof the following thermocouple manufacturers: Carpenter Tech-nology, Engelhard Corp. Specialty Metals Div., Hoskins Mfg.Co., Johnson M
10、atthey, Sigmund Cohn Corp.6. Thermocouple Types6.1 Letter symbols have not been assigned. Identification ismade by alloy composition with the thermoelectrically positivematerial listed first.6.1.1 Tungsten versus tungsten26 % rhenium.6.1.2 Tungsten3 % rhenium versus tungsten25 % rhe-nium.6.1.3 Plati
11、nel II.46.1.4 KP versus gold0.07 % iron.56.1.5 Platinum5 % molybdenum versus platinum0.1 %molybdenum.6.1.6 Platinum40 % rhodium versus platinum20 %rhodium.1This guide is under the jurisdiction of ASTM Committee E20 on TemperatureMeasurement and is the direct responsibility of Subcommittee E20.04 on
12、Thermo-couples.Current edition approved June 1, 2009. Published December 2009. Originallyapproved in 1995. Last previous edition approved in 2000 as E 1751 00. DOI:10.1520/E1751_E1751M-09E01.2“Manual on the Use of Thermocouples in Temperature Measurement,” ASTMManual, 12, ASTM, 1993.3For referenced
13、ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Trademark of Engelhard Corp., Specialty Metals Division.5Alloy compositions
14、are expressed in percentages by mass, except for thegold0.07 % iron alloy, which is given in atomic percent.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.1.7 Nickel18 % molybdenum versus nickel0.8 % co-balt.66.1.8 Iridium40 % rho
15、dium versus iridium.6.1.9 Gold versus platinum.6.1.10 Platinum versus palladium.7. Tolerances on Initial Values of emf versusTemperature7.1 Tolerances on initial values of emf versus temperaturehave not been established for the thermocouples in this guideexcept for the Tungsten3 % Rhenium versus Tun
16、gsten25 %Rhenium, and that data can be found in Specification E696.When required, tolerances on initial values of emf versustemperature should be established by agreement between theconsumer and the producer. These thermocouple combinationsare supplied typically as matched pairs.8. Table Information
17、8.1 The following is a list of emf versus temperature tablesincluded in this guide.Table Number Thermocouple Type Temperature RangeTable 1 Tungsten versus Tungsten26 % Rhenium 0 C to 2315 CTable 2 Tungsten versus Tungsten26 % Rhenium 32 F to 4200 FTable 3 Tungsten3 % Rhenium versusTungsten25 % Rheni
18、um0 C to 2315 CTable 4 Tungsten3 % Rhenium versusTungsten25 % Rhenium32 F to 4200 FTable 5 Platinel II 0 C to 1395 CTable 6 Platinel II 32 F to 2543 FTable 7 KP versus Gold0.07 % Iron 273 C to 7 CTable 8 KP versus Gold0.07 % Iron 459 F to 44 FTable 9 Platinum5 % Molybdenum versusPlatinum0.1 % Molybd
19、enum0 C to 1600 CTable 10 Platinum5 % Molybdenum versusPlatinum0.1 % Molybdenum32 F to 2912 FTable 11 Platinum40 % Rhodium versusPlatinum20 % Rhodium0 C to 1888 CTable 12 Platinum40 % Rhodium versusPlatinum20 % Rhodium32 F to 3430 FTable 13 Nickel18 % Molybdenum versusNickel0.8 % Cobalt50 C to 1410
20、CTable 14 Nickel18 % Molybdenum versusNickel0.8 % Cobalt58 F to 2570 FTable 15 Iridium 40 % Rhodium versus Iridium 0 C to 2110 CTable 16 Iridium 40 % Rhodium versus Iridium 32 F to 3830 FTable 17 Gold versus Platinum 0 C to 1000 CTable 18 Gold versus Platinum 32 F to 1832 FTable 19 Platinum versus P
21、alladium 0 C to 1500 CTable 20 Platinum versus Palladium 32 F to 2732 FTable 21 Polynomial Coefficients for the Computa-tion of Temperatures in C or F as aFunction of Thermocouple emf8.2 Tables 1-20 were derived from equations of the form:E 5 c01 c1T 1 c2T21 . cnTn(1)where:E = the emf in millivolts
22、(except for Tables 17-20 where Eis in microvolts), andT = the temperature in C or F. The coefficients used tocalculate each table are given at the end of the table.8.3 Table 21 gives coefficients of inverse equations that maybe used to compute approximate values of temperature (T)ineither C or F for
23、 each thermocouple combination. Theinverse equations are of the form:T 5 b01 b1E 1 b2E21 . bnEn(2)except for the gold versus platinum thermocouple in theranges 209 C to 1000 C (408.2 F to 1832 F), where theinverse equation is of the form:T 5 b01(i 5 111bi SE 2 96457620DI(3)For these equations, the t
24、hermocouple emf (E) is in units ofmillivolts, except for gold versus platinum and platinum versuspalladium thermocouples, for which the emf is in units ofmicrovolts.8.3.1 Table 21 also gives the temperature range, emf range,and error range of each inverse equation.9. Keywords9.1 cobalt; coefficients
25、; gold; iridium; iron; molybdenum;nickel; palladium; platinel; platinum; polynomial; rhenium;rhodium; thermocouple; tungstenTABLE 1 Tungsten versus Tungsten26 % Rhenium ThermocouplesThermoelectric Voltage as a Function of Temperature (C),Reference Junctions at 0 CC012345678910CThermoelectric Voltage
26、 in Millivolts0 0.000 0.001 0.003 0.004 0.005 0.007 0.008 0.010 0.012 0.013 0.015 010 0.015 0.017 0.018 0.020 0.022 0.024 0.026 0.028 0.030 0.032 0.034 1020 0.034 0.036 0.038 0.041 0.043 0.045 0.048 0.050 0.053 0.055 0.058 2030 0.058 0.060 0.063 0.065 0.068 0.071 0.074 0.076 0.079 0.082 0.085 3040 0
27、.085 0.088 0.091 0.094 0.097 0.100 0.104 0.107 0.110 0.113 0.117 4050 0.117 0.120 0.123 0.127 0.130 0.134 0.138 0.141 0.145 0.148 0.152 5060 0.152 0.156 0.160 0.164 0.168 0.172 0.175 0.179 0.184 0.188 0.192 6070 0.192 0.196 0.200 0.204 0.209 0.213 0.217 0.222 0.226 0.231 0.235 7080 0.235 0.240 0.244
28、 0.249 0.254 0.258 0.263 0.268 0.273 0.277 0.282 8090 0.282 0.287 0.292 0.297 0.302 0.307 0.312 0.318 0.323 0.328 0.333 90100 0.333 0.339 0.344 0.349 0.355 0.360 0.366 0.371 0.377 0.382 0.388 100110 0.388 0.394 0.399 0.405 0.411 0.417 0.422 0.428 0.434 0.440 0.446 110120 0.446 0.452 0.458 0.464 0.47
29、1 0.477 0.483 0.489 0.495 0.502 0.508 1206Nickel18 % molybdenum versus nickel 0.8 % cobalt is supplied by CarpenterTechnology as 20 alloy and 19 alloy.E1751/E1751M 0912TABLE 1 ContinuedC012345678910CThermoelectric Voltage in Millivolts130 0.508 0.514 0.521 0.527 0.534 0.540 0.547 0.553 0.560 0.567 0
30、.573 130140 0.573 0.580 0.587 0.594 0.601 0.607 0.614 0.621 0.628 0.635 0.642 140150 0.642 0.649 0.656 0.664 0.671 0.678 0.685 0.693 0.700 0.707 0.715 150160 0.715 0.722 0.729 0.737 0.744 0.752 0.760 0.767 0.775 0.782 0.790 160170 0.790 0.798 0.806 0.813 0.821 0.829 0.837 0.845 0.853 0.861 0.869 170
31、180 0.869 0.877 0.885 0.893 0.902 0.910 0.918 0.926 0.935 0.943 0.951 180190 0.951 0.960 0.968 0.976 0.985 0.993 1.002 1.011 1.019 1.028 1.037 190200 1.037 1.045 1.054 1.063 1.072 1.080 1.089 1.098 1.107 1.116 1.125 200210 1.125 1.134 1.143 1.152 1.161 1.170 1.180 1.189 1.198 1.207 1.217 210220 1.21
32、7 1.226 1.235 1.245 1.254 1.264 1.273 1.283 1.292 1.302 1.311 220230 1.311 1.321 1.331 1.340 1.350 1.360 1.369 1.379 1.389 1.399 1.409 230240 1.409 1.419 1.429 1.439 1.449 1.459 1.469 1.479 1.489 1.499 1.509 240250 1.509 1.520 1.530 1.540 1.550 1.561 1.571 1.582 1.592 1.602 1.613 250260 1.613 1.623
33、1.634 1.644 1.655 1.666 1.676 1.687 1.698 1.708 1.719 260270 1.719 1.730 1.741 1.752 1.762 1.773 1.784 1.795 1.806 1.817 1.828 270280 1.828 1.839 1.850 1.862 1.873 1.884 1.895 1.906 1.918 1.929 1.940 280290 1.940 1.951 1.963 1.974 1.986 1.997 2.009 2.020 2.032 2.043 2.055 290300 2.055 2.066 2.078 2.
34、090 2.101 2.113 2.125 2.136 2.148 2.160 2.172 300310 2.172 2.184 2.196 2.208 2.219 2.231 2.243 2.255 2.267 2.280 2.292 310320 2.292 2.304 2.316 2.328 2.340 2.353 2.365 2.377 2.389 2.402 2.414 320330 2.414 2.426 2.439 2.451 2.464 2.476 2.489 2.501 2.514 2.526 2.539 330340 2.539 2.552 2.564 2.577 2.59
35、0 2.602 2.615 2.628 2.641 2.653 2.666 340350 2.666 2.679 2.692 2.705 2.718 2.731 2.744 2.757 2.770 2.783 2.796 350360 2.796 2.809 2.822 2.836 2.849 2.862 2.875 2.888 2.902 2.915 2.928 360370 2.928 2.942 2.955 2.968 2.982 2.995 3.009 3.022 3.036 3.049 3.063 370380 3.063 3.076 3.090 3.104 3.117 3.131
36、3.145 3.158 3.172 3.186 3.200 380390 3.200 3.214 3.227 3.241 3.255 3.269 3.283 3.297 3.311 3.325 3.339 390400 3.339 3.353 3.367 3.381 3.395 3.409 3.423 3.438 3.452 3.466 3.480 400410 3.480 3.494 3.509 3.523 3.537 3.552 3.566 3.580 3.595 3.609 3.624 410420 3.624 3.638 3.653 3.667 3.682 3.696 3.711 3.
37、725 3.740 3.755 3.769 420430 3.769 3.784 3.799 3.813 3.828 3.843 3.858 3.872 3.887 3.902 3.917 430440 3.917 3.932 3.947 3.962 3.977 3.992 4.007 4.022 4.037 4.052 4.067 440450 4.067 4.082 4.097 4.112 4.127 4.142 4.158 4.173 4.188 4.203 4.219 450460 4.219 4.234 4.249 4.264 4.280 4.295 4.311 4.326 4.34
38、1 4.357 4.372 460470 4.372 4.388 4.403 4.419 4.434 4.450 4.465 4.481 4.497 4.512 4.528 470480 4.528 4.544 4.559 4.575 4.591 4.606 4.622 4.638 4.654 4.670 4.685 480490 4.685 4.701 4.717 4.733 4.749 4.765 4.781 4.797 4.813 4.829 4.845 490500 4.845 4.861 4.877 4.893 4.909 4.925 4.941 4.957 4.974 4.990
39、5.006 500510 5.006 5.022 5.038 5.055 5.071 5.087 5.104 5.120 5.136 5.153 5.169 510520 5.169 5.185 5.202 5.218 5.235 5.251 5.267 5.284 5.300 5.317 5.334 520530 5.334 5.350 5.367 5.383 5.400 5.416 5.433 5.450 5.466 5.483 5.500 530540 5.500 5.517 5.533 5.550 5.567 5.584 5.600 5.617 5.634 5.651 5.668 54
40、0550 5.668 5.685 5.702 5.718 5.735 5.752 5.769 5.786 5.803 5.820 5.837 550560 5.837 5.854 5.871 5.888 5.906 5.923 5.940 5.957 5.974 5.991 6.008 560570 6.008 6.026 6.043 6.060 6.077 6.095 6.112 6.129 6.146 6.164 6.181 570580 6.181 6.198 6.216 6.233 6.250 6.268 6.285 6.303 6.320 6.338 6.355 580590 6.3
41、55 6.373 6.390 6.408 6.425 6.443 6.460 6.478 6.495 6.513 6.531 590600 6.531 6.548 6.566 6.583 6.601 6.619 6.636 6.654 6.672 6.690 6.707 600610 6.707 6.725 6.743 6.761 6.778 6.796 6.814 6.832 6.850 6.868 6.886 610620 6.886 6.903 6.921 6.939 6.957 6.975 6.993 7.011 7.029 7.047 7.065 620630 7.065 7.083
42、 7.101 7.119 7.137 7.155 7.173 7.191 7.210 7.228 7.246 630640 7.246 7.264 7.282 7.300 7.319 7.337 7.355 7.373 7.391 7.410 7.428 640650 7.428 7.446 7.465 7.483 7.501 7.519 7.538 7.556 7.575 7.593 7.611 650660 7.611 7.630 7.648 7.667 7.685 7.703 7.722 7.740 7.759 7.777 7.796 660670 7.796 7.814 7.833 7
43、.852 7.870 7.889 7.907 7.926 7.944 7.963 7.982 670680 7.982 8.000 8.019 8.038 8.056 8.075 8.094 8.113 8.131 8.150 8.169 680690 8.169 8.187 8.206 8.225 8.244 8.263 8.281 8.300 8.319 8.338 8.357 690700 8.357 8.376 8.395 8.414 8.432 8.451 8.470 8.489 8.508 8.527 8.546 700710 8.546 8.565 8.584 8.603 8.6
44、22 8.641 8.660 8.679 8.698 8.717 8.737 710720 8.737 8.756 8.775 8.794 8.813 8.832 8.851 8.870 8.890 8.909 8.928 720E1751/E1751M 0913TABLE 1 ContinuedC012345678910CThermoelectric Voltage in Millivolts730 8.928 8.947 8.966 8.986 9.005 9.024 9.043 9.063 9.082 9.101 9.120 730740 9.120 9.140 9.159 9.178
45、9.198 9.217 9.236 9.256 9.275 9.295 9.314 740750 9.314 9.333 9.353 9.372 9.392 9.411 9.430 9.450 9.469 9.489 9.508 750760 9.508 9.528 9.547 9.567 9.586 9.606 9.625 9.645 9.665 9.684 9.704 760770 9.704 9.723 9.743 9.763 9.782 9.802 9.821 9.841 9.861 9.880 9.900 770780 9.900 9.920 9.939 9.959 9.979 9.
46、998 10.018 10.038 10.058 10.077 10.097 780790 10.097 10.117 10.137 10.156 10.176 10.196 10.216 10.236 10.256 10.275 10.295 790800 10.295 10.315 10.335 10.355 10.375 10.395 10.414 10.434 10.454 10.474 10.494 800810 10.494 10.514 10.534 10.554 10.574 10.594 10.614 10.634 10.654 10.674 10.694 810820 10
47、.694 10.714 10.734 10.754 10.774 10.794 10.814 10.834 10.854 10.874 10.894 820830 10.894 10.914 10.934 10.954 10.974 10.995 11.015 11.035 11.055 11.075 11.095 830840 11.095 11.115 11.136 11.156 11.176 11.196 11.216 11.236 11.257 11.277 11.297 840850 11.297 11.317 11.338 11.358 11.378 11.398 11.419 1
48、1.439 11.459 11.479 11.500 850860 11.500 11.520 11.540 11.561 11.581 11.601 11.622 11.642 11.662 11.683 11.703 860870 11.703 11.723 11.744 11.764 11.784 11.805 11.825 11.845 11.866 11.886 11.907 870880 11.907 11.927 11.948 11.968 11.988 12.009 12.029 12.050 12.070 12.091 12.111 880890 12.111 12.132
49、12.152 12.173 12.193 12.214 12.234 12.255 12.275 12.296 12.316 890900 12.316 12.337 12.357 12.378 12.398 12.419 12.439 12.460 12.481 12.501 12.522 900910 12.522 12.542 12.563 12.583 12.604 12.625 12.645 12.666 12.686 12.707 12.728 910920 12.728 12.748 12.769 12.790 12.810 12.831 12.852 12.872 12.893 12.914 12.934 920930 12.934 12.955 12.976 12.996 13.017 13.038 13.058 13.079 13.100 13.121 13.141 930940 13.141 13.162 13.183 13.204 13.224 13.245 13.266 13.287 13.307 13.32
