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            Schedule

            附表

            • Schedule

            Description

            Water hardness standard  
            Total hardness
            British German ppm CaCO3 Water Quality Grade
            0-5? 0-4? 0-72 Extremely Soft Water 
            5-10? 4-8? 72-140 Soft water 
            10-15? 8-12? 140-215 (Medium hard water 
            above15?  above12? above215  hard water
            Water Hardness Conversion Table 
              German Hardness  British Hardness ppm CaCO3
            1? German 0-4?  0-4? 0-72  Extremely soft water 
            1? British system4-8?   4-8? 72-140 Soft water 
            Water quality of dyeing water  
            Total Hardness  5?dH German  (85ppm)
            Suspension  ?1 mg/l
            Iron(Fe) ?0.1 mg/l
            Manganese(Mn) ?0.05 mg/l
            Copper (Cu) ?0.01 mg/l
            Nitrate ?50 mg/l
            Nitrite ?5 mg/l
            pH 7-8  
            Inorganic Salt ?0.5g/l  
            Conversion table of caustic soda at 20?C  
            Density  Caustic soda concentration
            Specific gravity Be Tw W/W g/l ml/l
            1.050 6.7 10 4.66 48.9 46.6
            1.100 13.0 20 9.19 101.1  
            1.160 19.8 32 14.64 169.8  
            1.180 22.0 36 16.44 194.0  
            1.200 24.0 40 18.26 219.0  
            1.220 26.0 44 20.07 244.9  
            1.240 27.9 48 21.90 271.5  
            1.260 29.7 52 23.28 299.0  
            1.290 32.4 58 26.48 341.6  
            1.310 34.2 62 28.33 371.1  
            1.330 35.8 66 30.2 401.6  
            1.360 38.2 72 33.06 449.6 330.6
            1.390 40.5 78 36.00 500.4  
            1.410 42.0 82 37.99 535.6  
            1.470 46.1 94 44.17 646.2  
            1.500 48.1 100 47.33 710.0  
            1.530 50.0 106 50.50 772.4  
            Hydrogen peroxide conversion table  
            H2Oweight percentage 27.5% 30% 35% 50%
            (20?C)Specific gravity 1.01 1.114 1.131 1.195
            H2O2 Content of hydrogen peroxide (g/kg) 275 300 350 500
            H2O2 Content of hydrogen peroxide(g/l) 302 334 396 598
            H2O2 volume percentage 27.5% 30% 35% 50%
            27.5%WW 1.00 0.91 0.76 0.51
            30%WW 1.01 1.00 0.84 0.56
            35%WW 1.31 1.19 1.00 0.66
            50%WW 1.97 1.79 1.51 1.00
            H2O2 weight percentage 27.5% 30% 35% 50%
            27.5%WW 1.00 0.92 0.79 0.55
            30%WW 1.09 1.00 0.86 0.60
            35%WW 1.27 1.17 1.00 0.70
            50%WW 1.82 1.67 1.43 1.00
            Sodium chloride specific density table
            g/l                                                                           temperature                                                                           5 10 20 30 40 50 60 70 80
            20? C 1.0023 1.0058 1.0128 1.0198 1.0268 1.0338 1.0408 1.0478 1.0548
            40? C 0.9962 0.9997 1.0067 1.0137 1.0207 1.0277 1.0347 1.0417 1.0487
            60? C 0.9866 0.9896 0.9956 1.0016 1.0076 1.0136 1.0196 1.0256 1.0316
            80? C 0.9752 0.9782 0.9842 0.9902 0.9962 1.0022 1.0082 1.0142 1.0202
            Sodium sulfate specific gravity meter
            g/l                                                                           temperature                                                                           5 10 20 30 40 50 60 70 80
            20? C 1.0034 1.0074 1.0154 1.0234 1.0314 1.0394 1.0478 1.0554 1.0634
            40? C 0.9971 0.0011 1.0091 1.0171 1.0251 1.0331 1.0411 1.0491 1.0571
            60? C 0.9881 0.9926 0.0016 1.0106 1.0196 1.0286 1.0376 1.0466 1.0556
            80? C 0.9773 0.9818 0.9908 0.9998 1.0088 1.0178 1.0268 1.0358 1.0448


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