Tabel Sifat Air
Tabel Sifat Air
Table A-1    Atomic or Molecular Weights and Critical Properties of Selected Elements and Compounds 926
Table A-2    Properties of Saturated Water (Liquid–Vapor): Temperature Table 927
Table A-3    Properties of Saturated Water (Liquid–Vapor): Pressure Table 929
Table A-4    Properties of Superheated Water Vapor 931
Table A-5    Properties of Compressed Liquid Water 935
Table A-6    Properties of Saturated Water (Solid–Vapor): Temperature Table 936
Table A-7    Properties of Saturated Refrigerant 22 (Liquid–Vapor): Temperature Table 937
Table A-8    Properties of Saturated Refrigerant 22 (Liquid–Vapor): Pressure Table 938
Table A-9    Properties of Superheated Refrigerant 22 Vapor 939
Table A-10   Properties of Saturated Refrigerant 134a (Liquid–Vapor): Temperature Table 943
Table A-11   Properties of Saturated Refrigerant 134a (Liquid–Vapor): Pressure Table 944
Table A-12   Properties of Superheated Refrigerant 134a Vapor 945
Table A-13   Properties of Saturated Ammonia (Liquid–Vapor): Temperature Table 948
Table A-14   Properties of Saturated Ammonia (Liquid–Vapor): Pressure Table 949
Table A-15   Properties of Superheated Ammonia Vapor 950
Table A-16   Properties of Saturated Propane (Liquid–Vapor): Temperature Table 954
Table A-17   Properties of Saturated Propane (Liquid–Vapor): Pressure Table 955
Table A-18   Properties of Superheated Propane Vapor 956
Table A-19   Properties of Selected Solids and Liquids: cp, r, and k. 960
Table A-20   Ideal Gas Specific Heats of Some Common Gases 961
Table A-21   Variation of cp with Temperature for Selected Ideal Gases 962
Table A-22   Ideal Gas Properties of Air 963
Table A-23   Ideal Gas Properties of Selected Gases 965
Table A-24   Constants for the van der Waals, Redlich–Kwong, and Benedict–Webb–Rubin
             Equations of State 969
Table A-25   Thermochemical Properties of Selected Substances at 298 K and 1 atm 970
Table A-26   Standard Molar Chemical Exergy, ech (kJ/kmol), of Selected Substances at 298 K and p0 971
Table A-27   Logarithms to the Base 10 of the Equilibrium Constant K 972
                                                                                                     925
            926   Tables in SI Units
                                           TABLE A-1
Table A-1
                                                                       Chemical                 M                  Tc             pc                  pcvc
                                                                                                                                               Zc !
                                          Substance                    Formula              (kg/kmol)             (K)           (bar)                 RTc
                                          Acetylene                    C2H2                   26.04             309              62.8             0.274
                                          Air (equivalent)             —                      28.97             133              37.7             0.284
                                          Ammonia                      NH3                     17.03            406             112.8             0.242
                                          Carbon                       C                      12.01               —              —                  —
                                          Carbon dioxide               CO2                    44.01             304              73.9             0.276
                                          Carbon monoxide              CO                     28.01             133              35.0             0.294
                                          Copper                       Cu                     63.54              —                —                 —
                                          Ethane                       C2H6                   30.07             305              48.8             0.285
                                          Ethanol                      C2H5OH                 46.07             516              63.8             0.249
                                          Sources: Adapted from International Critical Tables and L. C. Nelson and E. F. Obert, Generalized Compressibility
                                          Charts, Chem. Eng., 61: 203 (1954).
                                       Tables A-2 through A-6 are extracted from J. H. Keenan, F. G. Keyes, P. G. Hill, and J. G. Moore, Steam Tables,
                                       Wiley, New York, 1969.
                                       Tables A-7 through A-9 are calculated based on equations from A. Kamei and S. W. Beyerlein, “A Fundamental
                                       Equation for Chlorodifluoromethane (R-22),” Fluid Phase Equilibria, Vol. 80, No. 11, 1992, pp. 71–86.
                                       Tables A-10 through A-12 are calculated based on equations from D. P. Wilson and R. S. Basu, “Thermodynamic
                                       Properties of a New Stratospherically Safe Working Fluid — Refrigerant 134a,” ASHRAE Trans., Vol. 94, Pt. 2,
                                       1988, pp. 2095–2118.
                                       Tables A-13 through A-15 are calculated based on equations from L. Haar and J. S. Gallagher, “Thermodynamic
                                       Properties of Ammonia,” J. Phys. Chem. Reference Data, Vol. 7, 1978, pp. 635–792.
                                       Tables A-16 through A-18 are calculated based on B. A. Younglove and J. F. Ely, “Thermophysical Properties of
                                       Fluids. II. Methane, Ethane, Propane, Isobutane and Normal Butane,” J. Phys. Chem. Ref. Data, Vol. 16, No. 4, 1987,
                                       pp. 577–598.
                                                                                                           Tables in SI Units         927
TABLE A-2
                                                                                                                                            H2O
        8C                                                                                                                        8C
       .01         0.00611         1.0002     206.136      0.00    2375.3      0.01     2501.3    2501.4   0.0000    9.1562     .01
         4         0.00813         1.0001      157.232    16.77    2380.9     16.78     2491.9    2508.7   0.0610    9.0514       4
         5         0.00872         1.0001      147.120    20.97    2382.3     20.98     2489.6    2510.6   0.0761    9.0257       5
         6         0.00935         1.0001      137.734    25.19    2383.6     25.20     2487.2    2512.4   0.0912    9.0003       6
         8         0.01072         1.0002     120.917     33.59    2386.4     33.60     2482.5    2516.1   0.1212    8.9501       8
        10         0.01228         1.0004     106.379     42.00    2389.2     42.01     2477.7    2519.8   0.1510    8.9008      10
        11         0.01312         1.0004      99.857     46.20    2390.5     46.20     2475.4    2521.6   0.1658    8.8765      11
        12         0.01402         1.0005      93.784     50.41    2391.9     50.41     2473.0    2523.4   0.1806    8.8524      12
        13         0.01497         1.0007      88.124     54.60    2393.3     54.60     2470.7    2525.3   0.1953    8.8285      13
        14         0.01598         1.0008      82.848     58.79    2394.7     58.80     2468.3    2527.1   0.2099    8.8048      14
        15         0.01705         1.0009      77.926     62.99    2396.1     62.99     2465.9    2528.9   0.2245    8.7814      15
        16         0.01818         1.0011      73.333     67.18    2397.4     67.19     2463.6    2530.8   0.2390    8.7582      16
        17         0.01938         1.0012      69.044     71.38    2398.8     71.38     2461.2    2532.6   0.2535    8.7351      17
        18         0.02064         1.0014      65.038     75.57    2400.2     75.58     2458.8    2534.4   0.2679    8.7123      18
        19         0.02198         1.0016      61.293     79.76    2401.6     79.77     2456.5    2536.2   0.2823    8.6897      19
        20         0.02339         1.0018      57.791     83.95    2402.9     83.96     2454.1    2538.1   0.2966    8.6672     20
        21         0.02487         1.0020      54.514     88.14    2404.3     88.14     2451.8    2539.9   0.3109    8.6450     21
        22         0.02645         1.0022      51.447     92.32    2405.7     92.33     2449.4    2541.7   0.3251    8.6229     22
        23         0.02810         1.0024      48.574     96.51    2407.0     96.52     2447.0    2543.5   0.3393    8.6011     23
        24         0.02985         1.0027      45.883    100.70    2408.4    100.70     2444.7    2545.4   0.3534    8.5794     24
        25         0.03169         1.0029      43.360    104.88    2409.8    104.89     2442.3    2547.2   0.3674    8.5580     25
        26         0.03363         1.0032      40.994    109.06     2411.1   109.07     2439.9    2549.0   0.3814    8.5367     26
        27         0.03567         1.0035      38.774     113.25   2412.5     113.25    2437.6    2550.8   0.3954    8.5156     27
        28         0.03782         1.0037      36.690     117.42   2413.9     117.43    2435.2    2552.6   0.4093    8.4946     28
        29         0.04008         1.0040      34.733     121.60   2415.2     121.61    2432.8    2554.5   0.4231    8.4739     29
        30         0.04246         1.0043      32.894    125.78    2416.6    125.79     2430.5    2556.3   0.4369    8.4533     30
        31         0.04496         1.0046      31.165    129.96    2418.0    129.97     2428.1    2558.1   0.4507    8.4329     31
        32         0.04759         1.0050      29.540    134.14    2419.3    134.15     2425.7    2559.9   0.4644    8.4127     32
        33         0.05034         1.0053      28.011    138.32    2420.7    138.33     2423.4    2561.7   0.4781    8.3927     33
        34         0.05324         1.0056      26.571    142.50    2422.0    142.50     2421.0    2563.5   0.4917    8.3728     34
       35          0.05628         1.0060      25.216    146.67    2423.4    146.68     2418.6    2565.3   0.5053    8.3531     35
       36          0.05947         1.0063      23.940    150.85    2424.7    150.86     2416.2    2567.1   0.5188    8.3336     36
       38          0.06632         1.0071      21.602    159.20    2427.4    159.21      2411.5   2570.7   0.5458    8.2950     38
       40          0.07384         1.0078      19.523    167.56    2430.1    167.57     2406.7    2574.3   0.5725    8.2570     40
       45          0.09593         1.0099      15.258    188.44    2436.8    188.45     2394.8    2583.2   0.6387    8.1648     45
                          vf 5 (table value)/1000
      928          Tables in SI Units
          TABLE A-2
                                         (Continued)
                    ersions:
      Pressure Conv
                  M Pa                     Specific Volume           Internal Energy              Enthalpy                 Entropy
      1 bar = 0.1
                                               m3/kg                      kJ/kg                    kJ/kg                  kJ/kg ? K
            = 10 kPa
                2
           50            .1235          1.0121       12.032          209.32   2443.5     209.33    2382.7    2592.1     .7038   8.0763    50
           55            .1576          1.0146        9.568          230.21   2450.1     230.23    2370.7    2600.9     .7679   7.9913    55
           60            .1994          1.0172        7.671          251.11   2456.6     251.13    2358.5    2609.6     .8312   7.9096    60
           65            .2503          1.0199        6.197          272.02   2463.1     272.06    2346.2    2618.3     .8935   7.8310    65
           70            .3119          1.0228        5.042          292.95   2469.6     292.98    2333.8    2626.8     .9549   7.7553    70
           75            .3858          1.0259           4.131       313.90   2475.9     313.93    2321.4    2635.3    1.0155   7.6824    75
           80            .4739          1.0291           3.407       334.86   2482.2     334.91    2308.8    2643.7    1.0753   7.6122    80
           85            .5783          1.0325           2.828       355.84   2488.4     355.90    2296.0     2651.9   1.1343   7.5445    85
           90            .7014          1.0360           2.361       376.85   2494.5     376.92    2283.2    2660.1    1.1925   7.4791    90
           95            .8455          1.0397           1.982       397.88   2500.6     397.96    2270.2    2668.1    1.2500   7.4159    95
          100           1.014           1.0435           1.673       418.94   2506.5     419.04    2257.0    2676.1    1.3069   7.3549   100
          110           1.433           1.0516           1.210       461.14   2518.1     461.30    2230.2    2691.5    1.4185   7.2387   110
          120           1.985           1.0603           0.8919      503.50   2529.3     503.71    2202.6    2706.3    1.5276   7.1296   120
          130           2.701           1.0697           0.6685      546.02   2539.9     546.31    2174.2    2720.5    1.6344   7.0269   130
          140           3.613           1.0797           0.5089      588.74   2550.0     589.13    2144.7    2733.9    1.7391   6.9299   140
          150           4.758           1.0905           0.3928     631.68    2559.5     632.20     2114.3   2746.5    1.8418   6.8379   150
          160           6.178           1.1020           0.3071     674.86    2568.4     675.55    2082.6    2758.1    1.9427   6.7502   160
          170           7.917           1.1143           0.2428     718.33    2576.5     719.21    2049.5    2768.7    2.0419   6.6663   170
          180          10.02            1.1274           0.1941     762.09    2583.7     763.22    2015.0    2778.2    2.1396   6.5857   180
          190          12.54            1.1414           0.1565     806.19    2590.0     807.62    1978.8    2786.4    2.2359   6.5079   190
          200          15.54            1.1565           0.1274      850.65   2595.3     852.45    1940.7    2793.2    2.3309   6.4323   200
          210          19.06            1.1726           0.1044      895.53   2599.5     897.76    1900.7    2798.5    2.4248   6.3585   210
          220          23.18            1.1900           0.08619     940.87   2602.4     943.62    1858.5    2802.1    2.5178   6.2861   220
          230          27.95            1.2088           0.07158     986.74   2603.9     990.12     1813.8   2804.0    2.6099   6.2146   230
          240          33.44            1.2291           0.05976    1033.2    2604.0    1037.3     1766.5    2803.8    2.7015   6.1437   240
          250         39.73             1.2512           0.05013    1080.4    2602.4    1085.4      1716.2   2801.5    2.7927   6.0730   250
          260         46.88             1.2755           0.04221     1128.4   2599.0    1134.4     1662.5    2796.6    2.8838   6.0019   260
          270         54.99             1.3023           0.03564     1177.4   2593.7    1184.5     1605.2    2789.7    2.9751   5.9301   270
          280         64.12             1.3321           0.03017     1227.5   2586.1    1236.0     1543.6    2779.6    3.0668   5.8571   280
          290         74.36             1.3656           0.02557    1278.9    2576.0    1289.1     1477.1    2766.2    3.1594   5.7821   290
          300          85.81            1.4036           0.02167    1332.0    2563.0    1344.0     1404.9    2749.0    3.2534   5.7045   300
          320         112.7             1.4988           0.01549    1444.6    2525.5    1461.5     1238.6    2700.1    3.4480   5.5362   320
          340        145.9              1.6379           0.01080    1570.3    2464.6    1594.2     1027.9    2622.0    3.6594   5.3357   340
          360        186.5              1.8925           0.006945   1725.2     2351.5   1760.5      720.5    2481.0    3.9147   5.0526   360
          374.14     220.9              3.155            0.003155   2029.6    2029.6    2099.3        0      2099.3    4.4298   4.4298   374.14
                               vf 5 (table value)/1000
                                                                                                         Tables in SI Units        929
TABLE A-3
                                                                                                                                         H2O
                   8C
       0.04       28.96      1.0040     34.800         121.45    2415.2     121.46    2432.9    2554.4   0.4226   8.4746        0.04
       0.06       36.16      1.0064     23.739         151.53    2425.0     151.53    2415.9    2567.4   0.5210   8.3304        0.06
       0.08       41.51      1.0084     18.103         173.87    2432.2     173.88    2403.1    2577.0   0.5926   8.2287        0.08
       0.10       45.81      1.0102     14.674         191.82    2437.9     191.83    2392.8    2584.7   0.6493   8.1502        0.10
       0.20       60.06      1.0172      7.649         251.38    2456.7     251.40    2358.3    2609.7   0.8320   7.9085        0.20
       0.30       69.10      1.0223       5.229       289.20     2468.4    289.23     2336.1    2625.3   0.9439   7.7686        0.30
       0.40       75.87      1.0265       3.993        317.53    2477.0     317.58    2319.2    2636.8   1.0259   7.6700        0.40
       0.50       81.33      1.0300       3.240       340.44     2483.9    340.49     2305.4    2645.9   1.0910   7.5939        0.50
       0.60       85.94      1.0331       2.732       359.79     2489.6    359.86     2293.6    2653.5   1.1453   7.5320        0.60
       0.70       89.95      1.0360       2.365       376.63     2494.5    376.70     2283.3    2660.0   1.1919   7.4797        0.70
       0.80       93.50      1.0380       2.087       391.58     2498.8    391.66     2274.1    2665.8   1.2329   7.4346        0.80
       0.90       96.71      1.0410       1.869       405.06     2502.6    405.15     2265.7    2670.9   1.2695   7.3949        0.90
       1.00       99.63      1.0432       1.694        417.36    2506.1     417.46    2258.0    2675.5   1.3026   7.3594        1.00
       1.50       111.4      1.0528       1.159       466.94      2519.7   467.11     2226.5    2693.6   1.4336   7.2233        1.50
       2.00      120.2       1.0605       0.8857      504.49     2529.5    504.70     2201.9    2706.7   1.5301   7.1271        2.00
       2.50      127.4       1.0672       0.7187      535.10     2537.2    535.37     2181.5    2716.9   1.6072   7.0527        2.50
       3.00      133.6       1.0732       0.6058      561.15     2543.6    561.47     2163.8    2725.3   1.6718   6.9919        3.00
       3.50      138.9       1.0786       0.5243      583.95     2546.9    584.33     2148.1    2732.4   1.7275   6.9405        3.50
       4.00      143.6       1.0836       0.4625      604.31     2553.6    604.74     2133.8    2738.6   1.7766   6.8959        4.00
       4.50      147.9       1.0882       0.4140      622.25     2557.6    623.25     2120.7    2743.9   1.8207   6.8565        4.50
       5.00       151.9      1.0926       0.3749      639.68     2561.2    640.23     2108.5    2748.7   1.8607   6.8212        5.00
       6.00      158.9       1.1006       0.3157      669.90     2567.4    670.56     2086.3    2756.8   1.9312   6.7600        6.00
       7.00      165.0       1.1080       0.2729      696.44     2572.5    697.22     2066.3    2763.5   1.9922   6.7080        7.00
       8.00      170.4       1.1148       0.2404      720.22     2576.8    721.11     2048.0    2769.1   2.0462   6.6628        8.00
       9.00      175.4       1.1212       0.2150       741.83    2580.5    742.83     2031.1    2773.9   2.0946   6.6226        9.00
      10.0      179.9        1.1273       0.1944       761.68    2583.6     762.81    2015.3    2778.1   2.1387   6.5863      10.0
      15.0      198.3        1.1539       0.1318       843.16    2594.5     844.84    1947.3    2792.2   2.3150   6.4448      15.0
      20.0      212.4        1.1767       0.09963      906.44    2600.3     908.79    1890.7    2799.5   2.4474   6.3409      20.0
      25.0      224.0        1.1973       0.07998      959.11    2603.1     962.11    1841.0    2803.1   2.5547   6.2575      25.0
      30.0      233.9        1.2165       0.06668     1004.8     2604.1    1008.4     1795.7    2804.2   2.6457   6.1869      30.0
      35.0      242.6        1.2347       0.05707     1045.4     2603.7    1049.8     1753.7    2803.4   2.7253   6.1253      35.0
      40.0      250.4        1.2522       0.04978     1082.3     2602.3    1087.3      1714.1   2801.4   2.7964   6.0701      40.0
      45.0      257.5        1.2692       0.04406      1116.2    2600.1     1121.9    1676.4    2798.3   2.8610   6.0199      45.0
      50.0      264.0        1.2859       0.03944      1147.8    2597.1     1154.2    1640.1    2794.3   2.9202   5.9734      50.0
      60.0      275.6        1.3187       0.03244     1205.4     2589.7    1213.4      1571.0   2784.3   3.0267   5.8892      60.0
     70.0       285.9        1.3513       0.02737     1257.6     2580.5    1267.0     1505.1    2772.1   3.1211   5.8133       70.0
     80.0       295.1        1.3842       0.02352     1305.6     2569.8    1316.6     1441.3    2758.0   3.2068   5.7432       80.0
     90.0       303.4        1.4178       0.02048     1350.5     2557.8    1363.3     1378.9    2742.1   3.2858   5.6772       90.0
    100.         311.1       1.4524       0.01803     1393.0     2544.4    1407.6      1317.1   2724.7   3.3596   5.6141      100.
    110.        318.2        1.4886       0.01599     1433.7     2529.8    1450.1     1255.5    2705.6   3.4295   5.5527      110.
                    vf 5 (table value)/1000
      930         Tables in SI Units
          TABLE A-3
                                      (Continued)
                    ersions:
      Pressure Conv
                  M Pa              Specific Volume          Internal Energy              Enthalpy                Entropy
      1 bar = 0.1
                                        m3/kg                     kJ/kg                    kJ/kg                 kJ/kg ? K
            = 10 kPa
                2
          120.        324.8       1.5267       0.01426     1473.0      2513.7   1491.3      1193.6   2684.9   3.4962   5.4924   120.
          130.        330.9       1.5671       0.01278      1511.1    2496.1     1531.5     1130.7   2662.2   3.5606   5.4323   130.
          140.        336.8       1.6107       0.01149     1548.6     2476.8     1571.1    1066.5    2637.6   3.6232   5.3717   140.
          150.        342.2       1.6581       0.01034     1585.6     2455.5    1610.5     1000.0    2610.5   3.6848   5.3098   150.
          160.        347.4       1.7107       0.009306    1622.7     2431.7    1650.1       930.6   2580.6   3.7461   5.2455   160.
          170.        352.4       1.7702       0.008364    1660.2     2405.0    1690.3      856.9    2547.2   3.8079   5.1777   170.
          180.        357.1       1.8397       0.007489    1698.9     2374.3    1732.0       777.1   2509.1   3.8715   5.1044   180.
          190.        361.5       1.9243       0.006657    1739.9     2338.1    1776.5      688.0    2464.5   3.9388   5.0228   190.
          200.        365.8       2.036        0.005834    1785.6     2293.0    1826.3      583.4    2409.7   4.0139   4.9269   200.
          220.9       374.1       3.155        0.003155    2029.6     2029.6    2099.3         0     2099.3   4.4298   4.4298   220.9
                         vf 5 (table value)/1000
                                                                                          Tables in SI Units          931
TABLE A-4
Properties of Superheated Water Vapor
 T       v         u         h          s         v          u         h          s
8C     m3/kg     kJ/kg     kJ/kg    kJ/kg ? K   m3/kg      kJ/kg     kJ/kg    kJ/kg ? K
            p 5 0.06 bar 5 0.006 MPa                    p 5 0.35 bar 5 0.035 MPa            Pressure Conv
                                                                                                           ersions:
                 (Tsat 5 36.168C)                            (Tsat 5 72.698C)               1 bar = 0.1 M
                                                                                                          Pa
                                                                                                 = 10 2 kPa
                                                                                                                            H2O
Sat.   23.739   2425.0    2567.4     8.3304     4.526     2473.0    2631.4     7.7158
 80    27.132   2487.3    2650.1     8.5804     4.625     2483.7    2645.6     7.7564
120    30.219   2544.7    2726.0     8.7840     5.163     2542.4    2723.1     7.9644
TABLE A-4
                                      (Continued)
                                       T       v           u        h          s          v          u         h          s
                                      8C     m3/kg       kJ/kg    kJ/kg    kJ/kg ? K    m3/kg      kJ/kg     kJ/kg    kJ/kg ? K
                           ersions:
            Pressure Conv                             p 5 5.0 bar 5 0.50 MPa                     p 5 7.0 bar 5 0.70 MPa
                    0.1  M Pa                            (Tsat 5 151.868C)                          (Tsat 5 164.978C)
            1 bar =
                  = 10 kPa
                       2
H2O
TABLE A-4
(Continued)
 T       v           u         h            s          v           u         h          s
8C     m3/kg       kJ/kg     kJ/kg      kJ/kg ? K    m3/kg       kJ/kg     kJ/kg    kJ/kg ? K
                                                                                                  Pressure Conv
                 p 5 40 bar 5 4.0 MPa                          p 5 60 bar 5 6.0 MPa                              ersions:
                                                                                                  1 bar = 0.1 M
                    (Tsat 5 250.48C)                              (Tsat 5 275.648C)                             Pa
                                                                                                       = 10 2 kPa
                                                                                                                                  H2O
Sat.   0.04978     2602.3    2801.4       6.0701    0.03244     2589.7    2784.3       5.8892
280    0.05546     2680.0    2901.8       6.2568    0.03317     2605.2    2804.2       5.9252
320    0.06199     2767.4    3015.4       6.4553    0.03876     2720.0    2952.6       6.1846
                                      TABLE A-4
                                      (Continued )
                                       T       v          u         h           s          v           u        h          s
                                      8C     m3/kg      kJ/kg     kJ/kg     kJ/kg ? K    m3/kg       kJ/kg    kJ/kg    kJ/kg ? K
                           ersions:                  p 5 160 bar 5 16.0 MPa                       p 5 180 bar 5 18.0 MPa
            Pressure Conv
                    0.1  M Pa                            (Tsat 5 347.448C)                           (Tsat 5 357.068C)
            1 bar =
H2O
                  = 10 kPa
                       2
                                      Sat.   0.00931    2431.7    2580.6      5.2455    0.00749     2374.3    2509.1       5.1044
                                      360    0.01105    2539.0    2715.8      5.4614    0.00809     2418.9    2564.5       5.1922
                                      400    0.01426    2719.4    2947.6      5.8175    0.01190     2672.8    2887.0       5.6887
TABLE A-5
                                                                                                                                                H2O
  20     1.0006      83.80      86.30        .2961              .9995       83.65      88.65        .2956
  40     1.0067     167.25     169.77        .5715             1.0056      166.95      171.97       .5705
  80     1.0280     334.29     336.86       1.0737             1.0268      333.72     338.85       1.0720