GB/T 5750.4-2006 Translated English of Chinese Standard. (GBT 5750.4-2006, GB/T5750.4-2006, GBT5750.4-2006): Standard examination methods for drinking water - Organoleptic and physical parametershttps://www.chinesestandard.net, 20. jun. 2020 - 39 sider This standard stipulates the determination of the chroma of drinking water and its source water by platinum-cobalt standard colorimetry. This method is applicable to the determination of the chroma of drinking water and its source water. |
Indhold
| 3 | |
Chroma | 5 |
Turbidity | 6 |
Odor and taste | 9 |
Visible substances to the naked eye | 10 |
Conductivity | 18 |
Total hardness | 21 |
Total dissolved solids | 25 |
Volatile phenols | 27 |
Anionic synthetic detergent | 34 |
Almindelige termer og sætninger
4-aminoantipyrine according to formula add 5 mL Analytical procedures anionic synthetic detergent black T indicator calculated as phenol Center for Disease chloroform chroma chrome black Control and Prevention Disease Control disodium edetate distillation domestic drinking water evaporating dish filter g of potassium Hydrazine sulfate hydroxide solution 5.2.3.4 Let it stand liter mol/L measurement method is applicable methylene blue mg/L milliliters mL minimum detection mass Mix it uniformly mL colorimetric tube mL of pure mL of sodium Na2EDTA standard solution pH value phenanthroline Pipette potassium chloride potassium dihydrogen phosphate potassium ferricyanide potassium hydrogen phthalate Reagents Scope This standard separatory funnel sodium carbonate sodium dodecylbenzene sulfonate sodium hydroxide sodium hydroxide solution sodium thiosulfate sodium thiosulfate standard solution 10 g/L source water spectrophotometry standard buffer solution standard specifies standard suspension standard use solution thiosulfate standard solution titration total dissolved solids total hardness volatile phenol calculated volume reach water to dilute zinc standard solution