Two, China's winter indoor hygiene requirements for temperature include the following aspects:
Indoor temperature: the suitable range of central heating room temperature is 16 ~ 20℃, decentralized heating room temperature is 13 ~ 17℃, and the indoor temperature in any area in winter should not be lower than 13℃.
Vertical temperature difference: refers to the difference between the temperature at 0. 1 m above the ground in the center of the room and the temperature at 1.5 m above the ground. The vertical temperature difference is too large, the foot temperature drops, and the body temperature regulation is tense, which is not good for health. General vertical temperature difference should be less than 3℃.
Horizontal temperature difference: refers to the temperature difference between points at indoor1.5m. Generally, it is easy to catch cold in doorways, windows, corridors and other places, and the indoor horizontal temperature difference is too large, so the horizontal temperature difference should not exceed 2 ~ 3℃.
The Indoor Air Quality Standard (GB/T 18883-2002) clearly stipulates that the heating temperature in winter is 16-24℃, and the indoor temperature meeting this standard is indoor comfort temperature. .
The Design Standard for Energy Efficiency of Public Buildings (GB50 189-2005) stipulates different indoor temperature standards for different building types such as office, sports, commerce and catering.
The Code for Design of Heating, Ventilation and Air Conditioning clearly stipulates the design temperature of indoor heating: in heating design, the indoor calculated temperature in winter should be determined according to the building use, and16-24℃ should be adopted for the main room of civil buildings; Temperatures of auxiliary buildings and rooms: bathroom ≥25℃, dressing room ≥25℃, office and lounge ≥ 18℃, canteen ≥ 18℃, bathroom and toilet ≥ 12℃.
The standards in China have the nature of laws and regulations, and the mandatory standards in China are equivalent to some mandatory regulations in China. Some cities have raised the room temperature to ≥ 18℃, which is higher than the national standard.
Extended data:
18℃ 2℃, that is, it fluctuates 2℃ on the basis of18℃, that is, it is between 16℃ and 20℃, which all meet the heating standards. However, people are not satisfied with this temperature. Especially 16℃, most citizens think it is low like Mr. Guo. In previous years, Mr. Guo's home was 18℃, but he always felt chilly and had to wear sweaters or thick pajamas.
The radiator at home is not cold to the touch, but it is obviously different to go to relatives and friends' home at 20℃. Just wear a long suit and trousers. "Is it really that the human body has different cold resistance?" Mr. Guo said that he still felt cold when he was 35 years old, not to mention his 5-year-old son and 65-year-old mother. He is often worried that they will catch a cold.
Being at low room temperature for a long time makes old people or children easy to get sick.
If you stay at the room temperature of 16℃ for a long time, will it affect your health? The reporter consulted Bai Jinmei, director of the internal medicine department of Shanxi Provincial Hospital of Traditional Chinese Medicine. She said that generally speaking, the most suitable environmental temperature for human body is 18℃ to 22℃, which varies from person to person.
At room temperature 16℃ or below 16℃ for a long time, normal adults may not feel obvious, but they just need to wear more clothes, but they should be wary of the elderly, children or people with weak constitution. . If the temperature is too low, it may lead to insufficient blood supply to the heart of the elderly, which may lead to angina pectoris or myocardial infarction. Children may get upper respiratory tract infection, hand, foot and mouth disease, diarrhea and so on.
Baidu Encyclopedia-Design Standard for Energy Efficiency of Public Buildings
Baidu Encyclopedia-Indoor Air Quality Standard
Baidu Encyclopedia-Code for Design of Heating, Ventilation and Air Conditioning