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Hygienic Standard of Swimming Place

Date:2012-03-05 14:19:38

National Standard of the People’s Republic of China
Hygienic standard for swimming place GB 9667- 1996
Hygienic standard for swimming place

1 Subject Content and Scope of Application
The standard regulates standard values and hygienic requirements for the water quality in indoor and outdoor swimming pools and the air quality of indoor pools. 
The standard is suitable for all artificial and natural swimming places.
2 Quoted Standard
GB 3097 Sea Water Quality Standard
TJ 36 Hygienic Standard for Industrial Enterprise Design
3 Standard Values and Hygienic Requirements
3.1 Standard Values
3.1.1 Hygienic Standard Values for the Water Quality of Artificial Swimming Pools (Table 1)
Table 1 Hygienic Standard Values for the Water Quality of Artificial Swimming Pools 

Item

Standard Value

Item

Standard Value

Pool Temperature, ℃

22~26

Free Residual Chlorine, mg/L

0.3~0.5

pH Value

6.8~8.5

Bacteria Population, Number/mL

≤1000

Turbidity

≤5

Coliform, Number/L

≤ 18

Urea, mg/L

≤3.5

Toxic Substance

Execute as per TJ 36 Table 3.

3.1.2 Hygienic Standard Values for the Water Quality of Natural Swimming Pools (Table 2)
  Table 2 Hygienic Standard Values for the Water Quality of Natural Swimming Pools 

Item

Standard Value

Item

Standard Value

pH Value

6.0~9.0

Floating Substance

Without Oil Film and Floating Substances

Transparency, cm

≥ 30

Toxic Substance

Execute as per TJ36 Table 3 or GB3079.

3.1.3 Hygienic Standard Values for the Air of Indoor Pools (Table 3)
Table 3 Hygienic Standard Values for the Air of Indoor Pools

Item

Standard Value

Item

Standard Value

Room Temperature in Winter, ℃

Water temperature is higher than 1 to 2

Bacteria Population in Air

 

Relative Humidity, %

≤ 80

A. Crashing Method, cfu/m3

≤ 4000

Wind Speed, m/s

≤ 0.5

b. Sedimentation Method, Number/Vessel

≤ 40

Carbon Dioxide, %

≤ 0.15

 

 

 

3.2 Routine Hygienic Requirements
3.2.1 The passageways and sanitary facilities of swimming pools shall maintain clean and free of peculiar smell and shall be sterilized regularly.
3.2.2 Copper sulfate shall be added at rate of 0.25~0.5mg/L to avoid alga growth in the artificial swimming pools. When there is alga found in the pool, the maximum drug dosage shall not exceed 1.0mg/L.
3.2.3 The chlorinity content for foot batch sterilization pool shall maintain 5~10mg/L and the water must be changed every 4 hours. The concentration of chlorine residue in the continuously supplied new water for children’s swimming pools shall maintain 0.3~0.5mg/L.
3.2.4 In opening time, the artificial swimming pools shall be supplemented with new water on time every day to guarantee good sanitary condition of the pool water.
3.2.5 Patients of hepatitis, heart disease, skin scall (including food ringworm), serious blister, pink eye, otitis media, enteric infectious disease and mental disease and alcoholics are forbidden to enter into artificial swimming pools.
3.2.6 Swimming suits are forbidden to be rented.
3.3 Hygienic Requirements of Design
3.3.1 The construction of a swimming pool shall consider the long-range city planning, be far from the industrial pollution belt and avoid interruption to the neighborhood.
3.3.2 The new construction, reconstruction or construction expansion of a swimming pool must be supported with circulating clean water and sterilization facilities and protective measures shall be taken to hydrogenation sterilization.
3.3.3 The pool walls and bottom shall be bright, clean and no water seepage and in light color. The walkways alongside the pool shall be nonskid and easy to be washed. The outer edge of the walkway is set drainage ditch for waste water discharge into the sewer.
3.3.4 For indoor swimming pool, the daylight factor shall be no less than 1/4 and water surface illuminance shall be no less than 80lx.
3.3.5 The swimming places shall separately set men and women changing rooms, bath rooms and restrooms. For the bath room, one shower nozzle shall be installed for every 30-40 persons. For the women’s restroom, one closestool shall be set for every 40 persons. And for men’s restroom, one closestool and two urinals shall be set for every 60 persons. The waste water is discharged into the sewer.
3.3.6 In the middle of the walkway leading to the swimming pool shall be set with compulsory pass-type foot bath sterilization pool (at least 2m long, as wide as the walkway and 20cm deep).
3.3.7 The artificial swimming pool sets a children’s swimming pool which shall not be connected to the adults’ swimming pool and shall be installed with continuous water supply system.
3.3.8 The natural swimming pool shall be constructed according to the water quality standard under the regulation 3.1.2 and with health protection belt set.
3.3.9 There shall not be such barriers as branches, stumps and rocks and source of pollution on the bottom of the natural swimming pool, with water flow rate no higher than 0.5m/s.
3.3.10 It is forbidden to design and establish swimming pool at schistosome disease area or oncomelania living area.
4 Monitoring and Testing Method
The monitoring and testing method of this standard shall be subject to the Monitoring and Testing Method of Hygienic Standard for Public Places.

 


 

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