In order to prevent and control building materials andrenovationThis specification is formulated for indoor environmental pollution caused by materials, ensuring public health, safeguarding public interests, and achieving advanced technology and reasonable economy.
Code for Indoor Environmental Pollution Control of Civil Building Engineering GB 50325-2010 - Figure 1
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With the development of social economy, interior environment design has entered a new development period. It is a comprehensive "project" that perfectly combines science and technology with culture and art, and it is the sublimation of people's outlook on life and aesthetics.The environment of "dialogue" constitutes an important part of "elements" in design when emotional communication is carried out around people who can see, touch and feel in life, that is, when "dialogue" is carried out between objects and people.
With the development of social economy and science and technology, China's interior environment design is gradually becoming mature.The interior environment design in China has generally gone through three stages. In the early stage, due to the backward economic level, the interior environment design was not put on the agenda. Painting the walls, hanging some paintings or "quotations", and placing some necessary furniture constituted a simple and crude interior environment.
Sanheng system creates a healthy indoor environment Sanheng system can achieve indoor ventilation without opening windows, which solves the problem of indoor ventilation in bad weather when windows are not suitable for opening and ventilation is insufficient.With the further penetration of the concept of healthy housing in China, Sanheng system, as the guardian god of indoor healthy environment, will gradually become one of the necessary facilities for buildings.
At present, with the continuous attention of people to pollution, the quality of indoor environment is getting more and more attention. Building and decoration materials cause serious indoor environmental pollution, which directly affects people's health.This article mainly introduces the factors that affect the indoor environment, the hazards of building materials to indoor air and health, the quality of indoor environment and the selection of green building materials, which provide reference for further improving people's indoor environment.
According to the latest statistical results released by the Beizhuang Association Environmental Protection Committee, 90% of children's houses have indoor environmental pollution, only 4 of the 57 households have indoor air pollutant emission concentrations that meet the national standards, 53 households have exceeded the standard, accounting for 93% of the total investigated at present. doc
This document is a test record of important indoor environmental indicators related to intelligent buildings. It has complete contents and can be downloaded
This document is a test record of important indoor environmental indicators related to an intelligent building. It has complete contents and can be downloaded
Building materials and decoration materials, outdoor pollutants, combustion products and human activities are specifically as follows: 1. The pollution of indoor decoration materials and furniture is the main factor causing indoor air pollution.For example, paint, plywood, interior wall paint, etc. volatilize toxic gases such as formaldehyde, benzene, toluene, chloroform, which are quite carcinogenic;2. Pollution of inorganic building materials.For example, radon pollution released by radioactive substances in stone, floor tiles and ceramic tiles is the main cause of lung cancer;3. Pollution of outdoor pollutants.The serious pollution of outdoor air and the destruction of ecological environment aggravate the indoor air pollution.4. Indoor air pollution caused by combustion products. Cooking and smoking are the main pollution of indoor combustion. Most of the cooking fume and cigarette smoke are carcinogenic.5. The metabolism of human body and volatile components of various domestic wastes are also a reason for indoor air pollution.
This data is the test record of important indoor environmental indicators related to intelligent buildings (attached table 1). The contents are complete and can be downloaded
This document is the test record of important indoor environmental indicators related to intelligent buildings (Attached Table 3). The contents are complete and can be downloaded
This data is the test record of important indoor environmental indicators related to intelligent buildings (Attached Table 4). The contents are complete and can be downloaded
This data is the test record of important indoor environmental indicators related to an intelligent building (attached table 3). The contents are complete and can be downloaded
This data is the test record of important indoor environmental indicators related to an intelligent building (attached table 4). The contents are complete and can be downloaded
This data is the test record of important indoor environmental indicators related to an intelligent building (attached table 1). The contents are complete and can be downloaded
In order to strengthen the management of building energy conservation and standardize the energy conservation supervision of civil construction projects, the Guidelines for Energy Conservation Supervision of Civil Construction Projects in a Province (for Trial Implementation) is hereby formulated and issued for trial implementation after pre review by the Legal Affairs Office of the provincial government.All localities and supervision units are requested to report the problems and suggestions found in the implementation to the Construction Management Office of our department in a timely manner.
This document is the test record of important indoor environmental indicators related to intelligent buildings (Attached Table II). The contents are complete and can be downloaded
This data is the test record of important indoor environmental indicators related to an intelligent building (Attached Table II). The contents are complete and can be downloaded
This specification is applicable to indoor environmental pollution control of new, expanded and reconstructed civil building projects, not applicable to industrial building projects, storage building projects, structures and rooms with special purification and sanitation requirements.It is also not applicable to the control of indoor environmental pollution caused by non building decoration after the civil construction project is delivered for use.This specification is a national mandatory standard and must be enforced.
Airpak software was used to simulate the indoor pollutant concentration and thermal environment in the toilet of the World Expo.By changing the ventilation mode, air change frequency, exhaust outlet height and other ways, the pollutant concentrations under different simulation conditions were compared.The simulation results show that the effect of decentralized exhaust mode with up air supply is the best, which provides a method and theoretical basis for improving the concentration of toilet pollutants and the thermal environment.
1. The lighting standards of various rooms shall be determined according to the calculation and individual design specifications, and the window to floor ratio of auxiliary rooms such as bathrooms and kitchens shall not be less than 1/10, and that of staircases and walkways shall not be less than 1/14.
1. The lighting standards of various rooms shall be determined according to the calculation and individual design specifications, and the window to floor ratio of auxiliary rooms such as bathrooms and kitchens shall not be less than 1/10, and that of staircases and walkways shall not be less than 1/14.
The reinforcement processing yard shall firstly rent the local idle site, and try not to occupy land or occupy less land. The reinforcement processing shall be arranged between 6:00 a.m. and 11:00 p.m. as far as possible, so as not to disturb or startle people.The waste in the station shall be transported to the designated place for storage or deep burial according to the construction requirements and environmental protection approval measures.
The accident investigation team is established by the leader of the headquarters, the leaders of the safety and quality department, the engineering department, the subordinate management department, the site leader, the environmental protection engineer, the technical personnel, the team leader, and the site operators
This document is HJ-T 167-2004 Technical Specification for Indoor Ambient Air Quality Monitoring, which is clear and available for reference. Welcome to download.
This article will describe in detail the feasibility of using radiant heat to achieve high-precision temperature difference of ± 0.5 ℃, which I observed in my work practice. This method has been used by my customers for many years, and the effect is very good
In 2006, among the 408 monitoring sections of 197 rivers in the seven major river systems of the Yangtze River, the Yellow River, the Pearl River, the Songhua River, the Huaihe River, the Haihe River and the Liaohe River, the sections of Class I to III, Class IV to V, and the sections inferior to Class V water quality accounted for 46%, 28%, and 26% respectively.The main pollution indicators are permanganate index, petroleum and ammonia nitrogen.In general, the water quality of the main stream is better than that of the tributaries, and the general river reach is stronger than that of the urban river reach. The pollution is gradually transferred from the downstream area to the upstream.In 2008, the water quality of the seven major river systems of the Yangtze River, the Yellow River, the Pearl River, the Songhua River, the Huaihe River, the Haihe River and the Liaohe River remained the same as in 2007.
Combined with engineering examples, the technical requirements of steel fiber reinforced concrete are introduced.This paper discusses the quality control method of steel fiber reinforced concrete construction process
Very practical architectural design dataYou can check the details that you can't remember at ordinary timesComprehensive manual materialsWhen recommended by map review organization
On the premise of ensuring the quality and quantity of building construction, through effective management paper "target=" _blank ">cost management, strengthen the cost control of building construction to achieve the purpose of reducing consumption and improving quality.The effective implementation of construction cost control is an important means of improving and operating enterprise management. A sound and reasonable cost management system is an indispensable part of sound modern enterprise management.The vitality and market competitiveness of enterprises can be greatly improved through full staff, whole process, whole link and all-round cost management.
Standard specification for indoor circuit division of civil residences General division method How to divide the strong current circuit of home decoration in the lighting system? Three phase low-voltage circuit breakers shall not be used to control and protect three single-phase branch circuits.Each single phase branch circuit in the lighting system shall not exceed 16A, the number of light sources shall not exceed 25, each single phase circuit of large building combined lamps shall not exceed 25A, and the number of light sources shall not exceed 60 (excluding LED lamps)
This information is the general rules of civil building design and fire prevention specifications. The information is clear and can be used for reference. Welcome to download.