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◉ Standard Requirements
CJ/T 244-2016 "Water Quality Standards for Swimming Pools", the main technical contents are introduced as follows:
(1) The quality of the raw water and supplementary water of the swimming pool must meet the requirements of GB5749.
(2) The sensory properties of the pool water are good.
(3) The pool water does not contain pathogenic microorganisms.
(4) The chemical substances contained in the pool water shall not endanger human health.
(5) The routine inspection items and limit values of swimming pool water quality shall comply with the regulations.
(6) When the routine inspection of microorganisms exceeds the standard or a pollution accident occurs, the pool water should also be tested according to the additional water quality testing content and unconventional microorganism testing content required by the local health department.
◉ Test Items
(1) Sensory index Turbidity: It is a very important index, which can directly reflect the situation of pollutants in the water. The reduction of turbidity not only means that the transparency of the water increases, but also represents the cleanliness of the water.
(2) Physical and chemical indicators
Temperature: Swimming pools of different natures may have different water temperatures.
pH: For swimming pools whose raw water is drinking water, the appropriate pH range is uniform.
Oxygen consumption: This indicator reflects the freshness of water, which is regulated by most countries and regions.
Residual disinfectant concentration: Depending on the type of disinfectant used, the index items may be different accordingly.
Disinfection by-product concentration: According to the different types of disinfectants used, the index items may be different accordingly.
Alkalinity: The sum of the dissolved alkaline salt concentrations in water, an important indicator parameter.
Total hardness: the sum of Ca2+ and Mg2+ ions in water, which has an important influence on water quality balance and pH.
Total dissolved solids: the total amount of dissolved solids in the water, and its monitoring significance is to control the renewal of pool water.
Oxidation-reduction potential: reflects the level of residual disinfectant in the water and is affected by pH.
Other items: such as trihalomethanes, which are regulated in FINA, Germany, the United Kingdom and Japan, but appear less frequently in other national regulations.
(3) Microbiological indicators
Total number of colonies: generally calculated by the number of colonies per mL of water sample.
Total coliform: generally calculated as the maximum possible number per 100mL water sample, which is an important indicator to reflect pathogenic bacteria
Swimming Pool Water Quality Routine Inspection Items and Limits
|
Project |
Limit |
|
Turbidity |
≤1NTU |
|
PHvalue |
7.0～7.8 |
|
Urea |
≤3.5mg/L4 |
|
Total number of colonies（36±1℃，48h） |
≤200CFU/mL5 |
|
Total coliform（36±1℃，24h）
|
Every 100mL shall not be detected |
|
Free residual chlorine |
0.2～1.0mg/L |
|
Combined residual chlorine |
≤0.4mg/L |
|
Ozone |
≤0.2mg/m3以下（水面上空气中） |
|
Water temperature |
23～30℃ |
|
Dissolved total solids（TDS） |
≤raw water TDS+1500mg/L |
|
Redox potential（ORP） |
≥650mV |
|
Cyanuric acid |
≤150mg/L |
|
Trihalomethanes (THM） |
≤200μg/L |
◉ Related Standards
"Water Quality Standards for Swimming Pools" CJ/T 244-2016
"Swimming Pool Water Microbiological Test Method for Coliform Determination" GB/T 18204.10-2000
"Swimming Pool Water Microbiological Test Method Determination of Total Bacteria" GB/T 18204.9-2000
◉ Compliance Services
As a professional third-party testing technology service organization, Jiayu Testing has qualifications such as CMA and CNAS. In the field of environmental testing, it currently has more than 1000 CMA testing parameters, covering water and wastewater, air and waste gas, soil and sediment, noise and vibration, and solid waste toxicity identification. The laboratory is built and managed strictly in accordance with standards, equipped with advanced instruments and equipment, and has a professional technical team with superb skills. It has rich industry service experience and strong testing technology capabilities. Based on the principles of objectivity and fairness, it provides authoritative testing reports with legal effect to the society, and provides full chain environmental risk management support for enterprises and regulatory departments. Welcome to contact us, Jiayu Testing Consultation Hotline: 400-9269-886!
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