Summary of relevant standards for water quality testing

Summary of relevant standards for water quality testing Figure 1

The following are some common standards related to water quality testing, including international standards and domestic standards:

International standards

ISO 5667: Water quality - Sampling

ISO 10523: Water quality - Determination of pH

ISO 6060: Water quality - Determination of the chemical oxygen demand index

ISO 7888: Water quality - Determination of electrical conductivity

ISO 7027: Water quality - Determination of turbidity

ISO 6468: Water quality - Determination of mercury

ISO 15995: Water quality - Determination of selected phthalates using gas chromatography-mass spectrometry

ISO 10523: Water quality - Determination of pH

ISO 7887: Water quality - Examination and determination of color

ISO 7889: Water quality - Examination and determination of turbidity

ISO 8466-1: Water quality - Calibration and evaluation of analytical methods and estimation of performance characteristics - Part 1: Statistical evaluation of the linear calibration function

ISO 5815-1: Water quality - Determination of biochemical oxygen demand (BOD) - Part 1: Dilution and seeding method with allylthiourea addition

ISO 15587-1: Water quality - Determination of selected polycyclic aromatic hydrocarbons (PAH) - Part 1: Method using high-performance liquid chromatography with fluorescence detection after liquid-liquid extraction

domestic standard

GB/T 5750: Standard test method for drinking water

GB/T 6682: Specifications and test methods for analytical laboratory water

GB-T 7476: Water quality, determination of calcium EDTA titration

GB/T 17219: Safety of drinking water transmission and distribution equipment and protective materials

GB/T 7468: Water quality, determination of total mercury, cold atomic absorption spectrophotometry

GB/T 7473: Water quality, determination of copper 2,9-dimethyl-1,10-phenanthroline spectrophotometry

GB/T 7476: Water quality, determination of calcium EDTA titration method

GB/T 7491: Water quality, determination of volatile phenols, post-distillation bromide volumetric method

GB/T5084: Water Quality Standard for Farmland Irrigation

GBT6682: National Standard for Water for Analytical Laboratories

CJ/T 51: Standard for testing methods for urban sewage quality

GB/T 6920: Determination of pH in water quality, glass electrode method

HJ/T 84: Water quality, determination of inorganic anions, ion chromatography

GB/T 11893: Water quality, determination of total phosphorus, ammonium molybdate spectrophotometry

HJ 503: Water quality - Determination of volatile phenols - 4-Aminoantipyrine spectrophotometry

GB/T 16489: Water quality, determination of sulfides, methylene blue spectrophotometry

GB/T 11911: Water quality, determination of iron and manganese, flame atomic absorption spectrophotometry

GB/T 11912: Water quality, determination of nickel, flame atomic absorption spectrophotometry

GB 17323: Bottled drinking water, determination of electrical conductivity, electrode method

GB/T 11903: Determination of water quality, chromaticity

GB/T7489: Water quality, determination of dissolved oxygen, iodimetry

GB/T 11904: Water quality, determination of potassium and sodium, flame atomic absorption spectrophotometry

GB/T 11892: Water quality, determination of permanganate index

HJ 648: Water quality, determination of nitrobenzene compounds

These standards cover more indicators and methods in water quality testing, such as pH, conductivity, color, suspended solids and total hardness. Please note that the selection and applicability of standards should be evaluated according to specific water quality testing needs and requirements.