原文由 独钓寒江雪(hzhhqt) 发表:原文由 miaoying412(miaoying412) 发表:
请问你知道帕尔冷镜露点仪的原理吗?
国家标准露点温度应该在多少环境温度、气压等?请指教
实验分析对实验室有具体要求的,实验室的环境温度会在-45°C和-55°C 难道你在冰库里检测 还是你去过南极测试?
怪不得你能测出—70°C 我还真长见识了
见过雷人的,还真是没见过这么雷的。。。。。。
谁家露点仪会在这温度下去检测?
当然是在环境温度0~30之间了。。。
-45°C和-55°C这是你的露点仪的检测露点数据
你的露点仪在0度时候也只能测到-60°C
这是多少水分?大约(体积分数)10ppm,这是你仪器的极限了
高纯氮控制在多少?水(H2O)含量(体积分数)3ppm,相当于-69°C~-70°C
你用一个只能测到10ppm的仪器来控制小于3ppm的产品不觉得可笑吗?
楼主照片中测的实际露点-56°C大约是16~17ppm的样子
你。。你。。你。。你不会是跟你们老总有仇故意来诋毁自己产品的吧?
还有楼主是哪个学校毕业的?
算了,楼主还是不要说了
说出来你们校长会起诉你的。。。。。。
附录A
(资料性附录)
露点——体积分数的换算
………………………………………(A.1)
表A.1 露点(0℃~-79.9℃)——体积分数换算表
单位:µL/L | ||||||||||
露点 t/℃ | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
-0 | 6092.22 | 6046.96 | 5997.01 | 5947.45 | 5898.26 | 5849.44 | 5800.99 | 5752.92 | 5705.20 | 5657.86 |
-1 | 5606.20 | 5564.24 | 5517.96 | 5472.04 | 5426.47 | 5381.25 | 5336.37 | 5291.84 | 5247.64 | 5203.79 |
-2 | 5155.95 | 5117.09 | 5074.23 | 5031.71 | 4989.51 | 4947.64 | 4906.09 | 4864.86 | 4823.95 | 4783.35 |
-3 | 4739.08 | 4703.10 | 4663.44 | 4624.08 | 4585.03 | 4546.28 | 4507.83 | 4469.68 | 4431.83 | 4394.27 |
-4 | 4353.30 | 4320.02 | 4283.33 | 4246.93 | 4210.81 | 4174.97 | 4139.41 | 4104.13 | 4069.12 | 4034.39 |
-5 | 3996.52 | 3965.74 | 3931.82 | 3898.17 | 3864.78 | 3831.65 | 3798.78 | 3766.17 | 3733.81 | 3701.72 |
-6 | 3666.71 | 3638.28 | 3606.93 | 3575.84 | 3544.98 | 3514.38 | 3484.01 | 3453.89 | 3424.00 | 3394.36 |
-7 | 3362.03 | 3335.77 | 3306.82 | 3278.10 | 3249.62 | 3221.36 | 3193.32 | 3165.51 | 3137.92 | 3110.55 |
-8 | 3080.71 | 3056.47 | 3029.76 | 3003.25 | 2976.96 | 2950.89 | 2925.02 | 2899.36 | 2873.90 | 2848.65 |
-9 | 2821.12 | 2798.76 | 2774.12 | 2749.68 | 2725.43 | 2701.38 | 2677.52 | 2653.86 | 2630.39 | 2607.11 |
-10 | 2581.73 | 2561.11 | 2538.40 | 2515.86 | 2493.52 | 2471.35 | 2449.36 | 2427.56 | 2405.93 | 2384.48 |
-11 | 2361.09 | 2342.10 | 2321.17 | 2300.41 | 2279.82 | 2259.41 | 2239.16 | 2219.07 | 2199.15 | 2179.40 |
-12 | 2157.86 | 2140.38 | 2121.11 | 2102.00 | 2083.04 | 2064.25 | 2045.61 | 2027.12 | 2008.79 | 1990.61 |
-13 | 1970.80 | 1954.70 | 1936.97 | 1919.39 | 1901.95 | 1884.66 | 1867.52 | 1850.51 | 1833.65 | 1816.93 |
-14 | 1798.71 | 1783.91 | 1767.61 | 1751.44 | 1735.41 | 1719.51 | 1703.75 | 1688.12 | 1672.62 | 1657.25 |
-15 | 1640.51 | 1626.91 | 1611.93 | 1597.07 | 1582.34 | 1567.74 | 1553.26 | 1538.90 | 1524.66 | 1510.55 |
-16 | 1495.16 | 1482.68 | 1468.92 | 1455.28 | 1441.75 | 1428.34 | 1415.05 | 1401.87 | 1388.80 | 1375.84 |
-17 | 1361.73 | 1350.26 | 1337.64 | 1325.12 | 1312.71 | 1300.41 | 1288.21 | 1276.12 | 1264.13 | 1252.25 |
-18 | 1239.30 | 1228.79 | 1217.21 | 1205.73 | 1194.35 | 1183.07 | 1171.89 | 1160.81 | 1149.82 | 1138.92 |
-19 | 1127.05 | 1117.42 | 1106.81 | 1096.29 | 1085.87 | 1075.53 | 1065.29 | 1055.13 | 1045.06 | 1035.09 |
-20 | 1024.22 | 1015.39 | 1005.68 | 996.04 | 986.50 | 977.03 | 967.65 | 958.36 | 949.14 | 940.01 |
-21 | 930.06 | 921.99 | 913.09 | 904.28 | 895.54 | 886.89 | 878.31 | 869.80 | 861.37 | 853.02 |
表A.1(续) 单位:µL/L
露点 t/℃ | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
-22 | 843.92 | 836.53 | 828.40 | 820.34 | 812.36 | 804.44 | 796.60 | 788.82 | 781.12 | 773.48 |
-23 | 765.17 | 758.42 | 750.99 | 743.62 | 736.32 | 729.09 | 721.93 | 714.83 | 707.79 | 700.81 |
-24 | 693.22 | 687.06 | 680.27 | 673.55 | 666.89 | 660.28 | 653.74 | 647.26 | 640.84 | 634.47 |
-25 | 627.54 | 621.92 | 615.73 | 609.59 | 603.52 | 597.49 | 591.53 | 585.61 | 579.76 | 573.95 |
-26 | 567.63 | 562.51 | 556.86 | 551.27 | 545.73 | 540.24 | 534.80 | 529.41 | 524.07 | 518.79 |
-27 | 513.03 | 508.36 | 503.21 | 498.12 | 493.07 | 488.07 | 483.12 | 478.21 | 473.35 | 468.54 |
-28 | 463.29 | 459.04 | 454.36 | 449.72 | 445.13 | 440.58 | 436.07 | 431.61 | 427.19 | 422.80 |
-29 | 418.04 | 414.17 | 409.91 | 405.69 | 401.51 | 397.38 | 393.28 | 389.22 | 385.20 | 381.22 |
-30 | 376.88 | 373.36 | 369.49 | 365.66 | 361.87 | 358.11 | 354.38 | 350.69 | 347.04 | 343.42 |
-31 | 339.49 | 336.29 | 332.78 | 329.30 | 325.85 | 322.44 | 319.06 | 315.71 | 312.40 | 309.11 |
-32 | 305.54 | 302.64 | 299.45 | 296.30 | 293.17 | 290.07 | 287.01 | 283.97 | 280.96 | 277.99 |
-33 | 274.75 | 272.12 | 269.23 | 266.37 | 263.53 | 260.73 | 257.95 | 255.20 | 252.47 | 249.78 |
-34 | 246.84 | 244.46 | 241.84 | 239.25 | 236.68 | 234.14 | 231.63 | 229.13 | 226.67 | 224.23 |
-35 | 221.57 | 219.41 | 217.04 | 214.70 | 212.38 | 210.08 | 207.80 | 205.55 | 203.32 | 201.11 |
-36 | 198.70 | 196.76 | 194.61 | 192.49 | 190.39 | 188.31 | 186.26 | 184.22 | 182.20 | 180.21 |
-37 | 178.04 | 176.28 | 174.34 | 172.42 | 170.53 | 168.65 | 166.79 | 164.95 | 163.13 | 161.33 |
-38 | 159.37 | 157.78 | 156.03 | 154.30 | 152.59 | 150.90 | 149.22 | 147.56 | 145.92 | 144.29 |
-39 | 142.52 | 141.09 | 139.52 | 137.96 | 136.41 | 134.88 | 133.37 | 131.88 | 130.40 | 128.93 |
-40 | 127.34 | 126.05 | 124.63 | 123.22 | 121.83 | 120.46 | 119.09 | 117.75 | 116.41 | 115.10 |
-41 | 113.66 | 112.50 | 111.22 | 109.96 | 108.70 | 107.47 | 106.24 | 105.03 | 103.83 | 102.64 |
-42 | 101.35 | 100.31 | 99.16 | 98.02 | 96.90 | 95.78 | 94.68 | 93.59 | 92.51 | 91.45 |
-43 | 90.29 | 89.35 | 88.32 | 87.30 | 86.28 | 85.29 | 84.30 | 83.32 | 82.35 | 81.39 |
-44 | 80.35 | 79.51 | 78.58 | 77.66 | 76.76 | 75.86 | 74.97 | 74.10 | 73.23 | 72.37 |
-45 | 71.44 | 70.68 | 69.85 | 69.03 | 68.21 | 67.41 | 66.61 | 65.83 | 65.05 | 64.28 |
-46 | 63.44 | 62.77 | 62.02 | 61.28 | 60.56 | 59.84 | 59.12 | 58.42 | 57.72 | 57.03 |
-47 | 56.29 | 55.68 | 55.01 | 54.35 | 53.70 | 53.06 | 52.42 | 51.79 | 51.17 | 50.55 |
-48 | 49.88 | 49.34 | 48.75 | 48.16 | 47.57 | 47.00 | 46.43 | 45.87 | 45.31 | 44.76 |
-49 | 44.16 | 43.68 | 43.15 | 42.62 | 42.10 | 41.59 | 41.08 | 40.58 | 40.08 | 39.59 |
-50 | 39.05 | 38.62 | 38.15 | 37.68 | 37.22 | 36.76 | 36.30 | 35.86 | 35.41 | 34.97 |
-51 | 34.50 | 34.11 | 33.69 | 33.27 | 32.86 | 32.45 | 32.05 | 31.65 | 31.26 | 30.87 |
-52 | 30.44 | 30.10 | 29.72 | 29.35 | 28.98 | 28.62 | 28.26 | 27.91 | 27.55 | 27.21 |
-53 | 26.83 | 26.53 | 26.19 | 25.86 | 25.53 | 25.21 | 24.89 | 24.58 | 24.26 | 23.96 |
-54 | 23.62 | 23.35 | 23.05 | 22.76 | 22.47 | 22.18 | 21.90 | 21.62 | 21.34 | 21.07 |
-55 | 20.77 | 20.53 | 20.27 | 20.01 | 19.75 | 19.50 | 19.24 | 19.00 | 18.75 | 18.51 |
-56 | 18.24 | 18.03 | 17.80 | 17.57 | 17.34 | 17.11 | 16.89 | 16.67 | 16.45 | 16.24 |
-57 | 16.01 | 15.82 | 15.61 | 15.41 | 15.20 | 15.00 | 14.81 | 14.61 | 14.42 | 14.23 |
-58 | 14.02 | 13.86 | 13.67 | 13.49 | 13.32 | 13.14 | 12.96 | 12.79 | 12.62 | 12.46 |
-59 | 12.27 | 12.13 | 11.96 | 11.80 | 11.65 | 11.49 | 11.34 | 11.19 | 11.04 | 10.89 |
-60 | 10.73 | 10.60 | 10.46 | 10.31 | 10.18 | 10.04 | 9.903 | 9.769 | 9.637 | 9.506 |
-61 | 9.365 | 9.250 | 9.125 | 9.001 | 8.878 | 8.758 | 8.638 | 8.520 | 8.404 | 8.289 |
表A.1(续) 单位:µL/L
露点 t/℃ | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
-62 | 8.165 | 8.064 | 7.954 | 7.844 | 7.737 | 7.630 | 7.526 | 7.422 | 7.320 | 7.219 |
-63 | 7.109 | 7.021 | 6.924 | 6.828 | 6.733 | 6.640 | 6.548 | 6.457 | 6.367 | 6.278 |
-64 | 6.182 | 6.104 | 6.019 | 5.935 | 5.852 | 5.770 | 5.689 | 5.609 | 5.531 | 5.453 |
-65 | 5.369 | 5.301 | 5.226 | 5.152 | 5.079 | 5.008 | 4.937 | 4.867 | 4.798 | 4.730 |
-66 | 4.656 | 4.596 | 4.531 | 4.466 | 4.403 | 4.340 | 4.278 | 4.217 | 4.156 | 4.097 |
-67 | 4.032 | 3.980 | 3.923 | 3.867 | 3.811 | 3.756 | 3.702 | 3.649 | 3.596 | 3.544 |
-68 | 3.487 | 3.442 | 3.392 | 3.343 | 3.294 | 3.246 | 3.199 | 3.152 | 3.106 | 3.061 |
-69 | 3.012 | 2.972 | 2.929 | 2.886 | 2.843 | 2.802 | 2.761 | 2.720 | 2.680 | 2.640 |
-70 | 2.598 | 2.563 | 2.525 | 2.488 | 2.451 | 2.415 | 2.379 | 2.343 | 2.309 | 2.274 |
-71 | 2.237 | 2.207 | 2.174 | 2.141 | 2.109 | 2.078 | 2.047 | 2.016 | 1.986 | 1.956 |
-72 | 1.924 | 1.897 | 1.869 | 1.841 | 1.813 | 1.785 | 1.758 | 1.732 | 1.706 | 1.680 |
-73 | 1.652 | 1.629 | 1.604 | 1.580 | 1.556 | 1.532 | 1.508 | 1.485 | 1.463 | 1.440 |
-74 | 1.416 | 1.396 | 1.375 | 1.354 | 1.333 | 1.312 | 1.292 | 1.272 | 1.252 | 1.233 |
-75 | 1.212 | 1.195 | 1.177 | 1.158 | 1.140 | 1.123 | 1.105 | 1.088 | 1.071 | 1.054 |
-76 | 1.036 | 1.021 | 1.005 | 0.990 | 0.974 | 0.959 | 0.944 | 0.929 | 0.914 | 0.900 |
-77 | 0.884 | 0.871 | 0.858 | 0.844 | 0.831 | 0.817 | 0.804 | 0.792 | 0.779 | 0.767 |
-78 | 0.753 | 0.742 | 0.730 | 0.719 | 0.707 | 0.696 | 0.685 | 0.674 | 0.663 | 0.652 |
-79 | 0.641 | 0.631 | 0.621 | 0.611 | 0.601 | 0.591 | 0.582 | 0.572 | 0.563 | 0.554 |
表A.2露点(-80℃~-120℃)——体积分数换算表
单位: nL/L
露点 t/℃ | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
-80 | 543.96 | 535.97 | 527.22 | 518.60 | 510.12 | 501.77 | 493.55 | 485.45 | 477.48 | 469.63 |
-81 | 461.14 | 454.29 | 446.80 | 439.43 | 432.17 | 425.02 | 417.98 | 411.05 | 404.23 | 397.52 |
-82 | 390.26 | 384.41 | 378.00 | 371.70 | 365.50 | 359.39 | 353.38 | 347.46 | 341.64 | 335.90 |
-83 | 329.71 | 324.71 | 319.25 | 313.87 | 308.57 | 303.36 | 298.24 | 293.19 | 288.23 | 283.34 |
-84 | 278.06 | 273.80 | 269.15 | 264.57 | 260.06 | 255.62 | 251.26 | 246.96 | 242.74 | 238.58 |
-85 | 234.09 | 230.46 | 226.50 | 222.61 | 218.78 | 215.01 | 211.30 | 207.65 | 204.06 | 200.52 |
-86 | 196.71 | 193.63 | 190.27 | 186.96 | 183.71 | 180.51 | 177.37 | 174.27 | 171.23 | 168.23 |
-87 | 165.00 | 162.39 | 159.54 | 156.74 | 153.98 | 151.27 | 148.61 | 145.99 | 143.41 | 140.88 |
-88 | 138.14 | 135.93 | 133.52 | 131.15 | 128.82 | 126.53 | 124.28 | 122.06 | 119.89 | 117.74 |
-89 | 115.43 | 113.57 | 111.54 | 109.53 | 107.57 | 105.63 | 103.73 | 101.87 | 100.03 | 98.22 |
-90 | 96.27 | 94.70 | 92.99 | 91.30 | 89.65 | 88.02 | 86.42 | 84.84 | 83.30 | 81.78 |
-91 | 80.14 | 78.82 | 77.37 | 75.96 | 74.56 | 73.19 | 71.85 | 70.53 | 69.23 | 67.95 |
-92 | 66.57 | 65.46 | 64.25 | 63.06 | 61.89 | 60.74 | 59.62 | 58.51 | 57.42 | 56.35 |
-93 | 55.19 | 54.26 | 53.25 | 52.25 | 51.27 | 50.31 | 49.37 | 48.44 | 47.53 | 46.63 |
-94 | 45.66 | 44.89 | 44.04 | 43.21 | 42.39 | 41.58 | 40.79 | 40.02 | 39.26 | 38.51 |
-95 | 37.70 | 37.05 | 36.35 | 35.65 | 34.97 | 34.30 | 33.64 | 32.99 | 32.36 | 31.73 |
-96 | 31.06 | 30.52 | 29.93 | 29.35 | 28.78 | 28.23 | 27.68 | 27.14 | 26.61 | 26.10 |
表A.2(续) 单位:µL/L
露点 t/℃ | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
-97 | 25.54 | 25.09 | 24.60 | 24.12 | 23.64 | 23.18 | 22.73 | 22.28 | 21.84 | 21.41 |
-98 | 20.95 | 20.58 | 20.17 | 19.77 | 19.38 | 18.99 | 18.62 | 18.25 | 17.89 | 17.53 |
-99 | 17.15 | 16.84 | 16.50 | 16.17 | 15.85 | 15.53 | 15.22 | 14.91 | 14.61 | 14.32 |
-100 | 14.00 | 13.75 | 13.47 | 13.20 | 12.93 | 12.67 | 12.41 | 12.16 | 11.91 | 11.67 |
-101 | 11.41 | 11.20 | 10.97 | 10.75 | 10.53 | 10.31 | 10.10 | 9.89 | 9.69 | 9.49 |
-102 | 9.274 | 9.101 | 8.913 | 8.729 | 8.548 | 8.371 | 8.197 | 8.027 | 7.860 | 7.696 |
-103 | 7.520 | 7.379 | 7.225 | 7.073 | 6.925 | 6.780 | 6.638 | 6.498 | 6.362 | 6.228 |
-104 | 6.084 | 5.968 | 5.842 | 5.718 | 5.597 | 5.478 | 5.362 | 5.248 | 5.137 | 5.027 |
-105 | 4.910 | 4.815 | 4.712 | 4.611 | 4.512 | 4.416 | 4.321 | 4.228 | 4.137 | 4.048 |
-106 | 3.952 | 3.875 | 3.791 | 3.709 | 3.629 | 3.550 | 3.473 | 3.398 | 3.324 | 3.251 |
-107 | 3.173 | 3.111 | 3.043 | 2.976 | 2.911 | 2.847 | 2.784 | 2.723 | 2.663 | 2.605 |
-108 | 2.541 | 2.491 | 2.436 | 2.382 | 2.329 | 2.277 | 2.227 | 2.177 | 2.128 | 2.081 |
-109 | 2.030 | 1.989 | 1.945 | 1.901 | 1.858 | 1.817 | 1.776 | 1.736 | 1.697 | 1.658 |
-110 | 1.617 | 1.584 | 1.548 | 1.513 | 1.479 | 1.445 | 1.412 | 1.380 | 1.349 | 1.318 |
-111 | 1.285 | 1.258 | 1.229 | 1.201 | 1.174 | 1.147 | 1.120 | 1.094 | 1.069 | 1.044 |
-112 | 1.018 | 0.997 | 0.974 | 0.951 | 0.929 | 0.907 | 0.886 | 0.865 | 0.845 | 0.825 |
-113 | 0.804 | 0.787 | 0.769 | 0.751 | 0.733 | 0.716 | 0.699 | 0.682 | 0.666 | 0.651 |
-114 | 0.634 | 0.620 | 0.605 | 0.591 | 0.577 | 0.563 | 0.550 | 0.537 | 0.524 | 0.511 |
-115 | 0.498 | 0.487 | 0.475 | 0.464 | 0.453 | 0.442 | 0.431 | 0.421 | 0.410 | 0.401 |
-116 | 0.390 | 0.381 | 0.372 | 0.363 | 0.354 | 0.345 | 0.337 | 0.329 | 0.321 | 0.313 |
-117 | 0.304 | 0.298 | 0.290 | 0.283 | 0.276 | 0.269 | 0.263 | 0.256 | 0.250 | 0.244 |
-118 | 0.237 | 0.232 | 0.226 | 0.220 | 0.215 | 0.209 | 0.204 | 0.199 | 0.194 | 0.189 |
-119 | 0.184 | 0.180 | 0.175 | 0.171 | 0.166 | 0.162 | 0.158 | 0.154 | 0.150 | 0.146 |
-120 | 0.142 |
原文由 miaoying412(miaoying412) 发表:原文由 ghostermen(ghostermen) 发表:原文由 miaoying412(miaoying412) 发表:原文由 雨木霖(mickeylin) 发表:
很低进口的仪器很不好用的
很多单位用的都是一些1-2万左右的检测仪器 这些仪器基本上都是
阻容传感水分测量仪 稳定性是很差 而且有偏差 维修率高
而瑞士露点仪DP-19型 光价格就是人家仪器的几十倍 是行业人士中一致公认的高端仪器 检测精准 稳定且无任何偏差
不相信你也可以百度一下就知道啊
检测精准 稳定且无任何偏差, 就算最厉害的仪器也不敢说无任何偏差吧,吹牛吹过了!
相比较而言 那你觉得是1-2万左右的仪器精准率高还是20-30万的仪器精准率高呢?我只是相对这两种做比较
原文由 独钓寒江雪(hzhhqt) 发表:原文由 hz580228(hz580228) 发表:
2位不要争了,帕尔冷镜露点仪重复性要好与目视确定露点,目视会造成读数偏差,有滞后现象露点是会底些。帕尔冷镜露点仪制冷量是没有液氮温度底。
我争的不是那个方法更准确。。。
就算帕尔冷镜露点仪重复性要好与目视确定露点
在正常的实验室温度20度左右,这种仪器只能测到-55°C---+20°C
大约20ppm,
不明白如何来保障小于3ppm的产品质量阿
难道说这仪器测的20ppm的水分可以认为是小于3ppm了
至少要更换一个能测到3ppm一下的仪器来说话啊