标准编号:	GB 50325-2010
中文名称:	民用建筑工程室内环境污染控制规范
英文名称:	Code for indoor environmental pollution control of civil building engineering
行业分类:	GB    国家标准
发布机构:	住房和城乡建设部 国家质量监督检验检疫总局
发布日期:	2010-08-18
实施日期:	2011-6-1
标准状态:	被替代
被新标准替代:	GB 50325-2010（2013） 民用建筑工程室内环境污染控制规范（2013版） GB 50325-2020 民用建筑工程室内环境污染控制标准
被替代日期:	2011-6-1
替代旧标准:	GB 50325-2010 民用建筑工程室内环境污染控制规范 GB 50325-2001 民用建筑工程室内环境污染控制规范 GB 50325-2001(2006) 民用建筑工程室内环境污染控制规范
翻译语言:	英文
文件格式:	PDF
中文字符数:	28000 字
翻译价格(元):	1960.00 元
交付时间:	付款后 1 个工作日

1 General Provisions



1.0.1 This code was formulated for purpose of preventing and controlling the indoor environmental pollution produced by building materials and decorative materials in civil building engineering, guaranteeing the public health, protecting the public interest and achieving advanced technology, economy and rationality.

1.0.2 This code is applicable to the indoor environmental pollution control of the constructed, extended and reconstructed civil building engineering, but it is not applicable to the indoor environmental pollution control of industrial production building engineering, storage building engineering, structures, and the one having special purification and sanitation requirements or the indoor environmental pollution control produced by non-building decoration after the civil building engineering is put into service.

1.0.3 The indoor environmental pollutants under control in this code are radon (hereinafter referred to as "Rn-222"), formaldehyde, ammonia, benzene and total volatile organic compounds (called as "TVOC" for short).

1.0.4 Civil building engineering are divided into the following two categories in accordance with the various requirements for control of indoor environmental pollution:

1 Category I civil building engineering: residential buildings, hospitals, buildings for the aged, kindergartens, and classrooms, etc.

2 Category II civil building engineering: office buildings, shops, hotels, public places of entertainment, bookstores, libraries, exhibition buildings, gymnasia, waiting room of public transit means, dining rooms, barbershops and other civil building engineering.

1.0.5 The building materials and decorative materials selected for civil building engineering must meet the relevant regulations of this code.

1.0.6 In addition to those specified in this code, the indoor environmental pollution control of civil building engineering still shall meet those specified in the relevant current standards of the State.



2 Terms and Symbols



2.1 Terms



2.1.1 Civil building engineering

It is the general term of the structure engineering and decoration engineering of the constructed, extended and reconstructed civil buildings.

2.1.2 Environmental test chamber

It is the equipment used for testing the pollutant release amount of building materials and decorative materials by simulating the indoor environment.

2.1.3 Radon exhalation rate from the surface

It is the radioactivity of radon exhaled from unit area of soil or material surface in unit time.

2.1.4 Internal exposure index (IRa)

It is the quotient obtained by dividing the radioactive specific activity of natural radionuclide radium-226 in building materials by the limit value 200 of specific activity.

2.1.5 External exposure index (Iγ)

It is the sum of the quotient values obtained by respectively dividing the radioactive specific activity of natural radionuclides radium-226, thorium-232 and kalium-40 in building materials by the limit values of specific activity: 370, 260 and 4,200.

2.1.6 Radon concentration

It is the radioactivity of radon in unit volume of air.

2.1.7 Wood-based panels

They are the boards manufactured by machining and separating the vegetable fibre (as the raw material) into different shapes of unit materials, assembling these unit materials, adding adhesives and pressing, including veneer board, fibreboard and particle board, etc.

2.1.8 Decorated wood-based panels

They are boards made with the wood-based panels as the base material, through finishing or coating the compound finishing material as the surface layer.

2.1.9 Water-based coatings

They are coatings using water as the diluent.

2.1.10 Water-based adhesives

They are adhesives using water as the diluent.

2.1.11 Water-based treatment agents

They are the liquids using water as the diluent and being able to immerge into the inner pat of building materials and decorative materials to improve such properties as flame retardance, water resistance and corrosion protection of these materials.

2.1.12 Solvent-thinned coatings

They are coatings using organic solvent as the diluent.

2.1.13 Solvent-thinned adhesives

They are adhesives using organic solvent as the diluent.

2.1.14 Content of released formaldehyde

It is the content of free formaldehyde released from the materials under the test conditions of environmental test chamber method or dryer method.

2.1.15 Content of free formaldehyde

It is the content of free formaldehyde in unit mass of materials under the test conditions of perforator method.

2.1.16 Total volatile organic compounds

It is the total measured amount of volatile organic compounds in the air under the inspection conditions specified in this code. They are referred to as "TVOC" for short.

2.1.17 Volatile organic compound

It is the total measured amount of volatile organic compounds in the material under the inspection conditions specified in this code. It is referred to as "VOC" for short.



2.2 Symbols



IRa——the internal exposure index;

Iγ——the external exposure index;

CRa——the radioactive specific activity of the natural radionuclide radium-226 in building materials;

CTh——the radioactive specific activity of the natural radionuclide thorium-232 in building materials;

CK——the radioactive specific activity of the natural radionuclide kalium-40 in building materials, becquerel/kilogram (Bq/kg);

fi——the mass percent (%) of the ith kind of material accounting for the total dosage of materials;

IRai——the external exposure index of the ith kind of material;

Iγi——the external exposure index of the ith kind of material.



3 Building Materials



3.1 Main Inorganic Nonmetal Building Materials and Decorative Materials



3.1.1 The radioactivity limits for the main inorganic nonmetal building materials used in civil building engineering, such as sands, stones, bricks, masonry blocks, cement, concrete and concrete prefabricated parts, shall be in accordance with those specified in Table 3.1.1.

Table 3.1.1 Radioactivity Limits for the Main Inorganic Nonmetal Building Materials

Test item Limit

Internal exposure index IRa ≤1.0

External exposure index Iγ ≤1.0

3.1.2 When classifying the inorganic nonmetal decorative materials used in civil building engineering, including stones, building sanitary ceramics, gypsum boards, ceiling materials, and inorganic porcelain binding material of brick, their radioactivity limits shall be in accordance with those specified in Table 3.1.2.

Table 3.1.2 Radioactivity Limits for Inorganic Nonmetal Decorative Materials

Test item Limit

A B

Internal exposure index IRa ≤1.0 ≤1.3

External exposure index Iγ ≤1.3 ≤1.9

3.1.3 The radioactivity limits for such main building materials as aerated concrete, hollow bricks and hollow blocks with hollow ratio (void ratio) used in civil building engineering shall be in accordance with those specified in Table 3.1.3.

Table 3.1.3 Radioactivity Limits for Aerated Concrete and for Main Building Materials with Hollow Ratio (Void Ratio) Above 25%

Test item Limit

Radon exhalation rate from the surface [Bq/(m2·s)] ≤0.015

Internal exposure index IRa ≤1.0

External exposure index Iγ ≤1.3

3.1.4 The test methods for the radionuclides in the main building materials and decorative materials shall meet the relevant regulations of the current national standard "Limit of Radionuclides in Building Materials" (GB 6566), and the test method for radon exhalation rate from the surface shall meet those specified in Appendix A of this code.



3.2 Wood-based Panels and Decorated Wood-based Panels



3.2.1 The wood-based panels and decorated wood-based panels for indoor use of civil building engineering must be tested for the content of free formaldehyde or the content of released formaldehyde.

3.2.2 Where the content of released formaldehyde is determined by adopting with the environmental test chamber method and the wood-based panels are classified according to this method, its limit shall meet those specified in the current national standard "Indoor Decorating and Refurbishing Materials—Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products" (GB 18580), as detailed in Table 3.2.2.

Table 3.2.2 Determination of Limit for Content of Released Formaldehyde Using Environmental Test Chamber Method

Class Limit (mg/m3)

E1 ≤0.12

3.2.3 Where the content of released formaldehyde is determined by adopting with the perforator method and the wood-based panels are classified according to this method, its limit shall meet those specified in the current national standard "Indoor Decorating and Refurbishing Materials—Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products" (GB 18580).

3.2.4 Where the content of released formaldehyde is determined by adopting with the dryer method and the wood-based panels are classified according to this method, its limit shall meet those specified in the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products" (GB 18580).

3.2.5 As for decorated wood-based panels, the environmental test chamber method or dryer method may be adopted for the determination of the content of released formaldehyde, and the determination results of the environmental test chamber method shall prevail if any dispute happens; for veneer boards and block boards, the dryer method should be adopted for the determination of the content of released formaldehyde; for particle boards, fibreboards and others, the perforator method should be adopted for the determination of the content of free formaldehyde.

3.2.6 The determination of the content of released formaldehyde by using environmental test chamber method should be carried out according to Appendix B of this code.

3.2.7 Where the inspection is carried out by adopting with perforator method and dryer method, the limit shall meet those specified in the current national standard "Indoor Decorating and Refurbishing Materials—Limit of Formaldehyde Emission of Woodbased Panels and Finishing Products" (GB 18580).



3.3 Coatings



3.3.1 The water-based coatings and water-based putty used for the indoor parts of civil building engineering shall be tested for their content of free formaldehyde, and the content limits shall be in accordance with those specified in Table 3.3.1.

Table 3.3.1 Limits for Free Formaldehyde in Water-based Coatings and Water-based Putty for Indoor Use

Test item Limit

Water-based coatings Water-based putty

Free formaldehyde (mg/kg) ≤100

3.3.2 For the solvent-thinned coatings for indoor use of civil building engineering and the solvent-thinned putty for woodwares, they shall be mixed according their respective maximum dilution ratio and be tested for the contents of VOC, benzene, and toluene+xylene+ethylbenzene, and the content limits shall be in accordance with those specified in Table 3.3.2.

Table 3.3.2 Limits for VOC, Benzene, and Toluene+Xylene+Ethylbenzene in Solvent-thinned Coatings for Indoor Use and in Solvent-thinned Putty for Woodwares

Coating type VOC (g/L) Benzene (%) Toluene+xylene+ethylbenzene (%)

Alkyd coatings ≤500 ≤0.3 ≤5

Nitrocellulose coatings ≤720 ≤0.3 ≤30

Polyurethane coatings ≤670 ≤0.3 ≤30

Phenolic anticorrosive paint ≤270 ≤0.3 —

Other solvent-thinned coatings ≤600 ≤0.3 ≤30

Solvent-thinned putty for woodware ≤550 ≤0.3 ≤30

3.3.3 After measuring the content of free diisocyanate (TDI, HDI) in the curing agent of polyurethane paint, the content of free diisocyanate (TDI, HDI) in polyurethane paint shall be calculated according to the specified minimum dilution ratio, which shall not be larger than 4g/kg. The determination method should meet the relevant regulations stated in the current national standard "Binders for Paints and Varnishes-Determination of Monomeric Diisocyanates in Isocyanate Resins" (GB/T 18446).

3.3.4 The determination methods for the content of free formaldehyde in water-based coatings and water-based putty should be comply with the relevant provisions stated in the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Interior Architectural Coatings" (GB 18582).

3.3.5 The determination methods for the contents of volatile organic compounds (VOC), benzene and toluene+xylene+ethylbenzene in the solvent-thinned coatings should meet those specified in Appendix C of this code.



3.4 Adhesives



3.4.1 The water-based adhesives for indoor use in civil building engineering shall be tested for the contents of volatile organic compounds (VOC) and free formaldehyde, and their content limits shall be in accordance with those specified in Table 3.4.1.

Table 3.4.1 Limits for VOC and Free Formaldehyde in Water-based Adhesives for Indoor Use

Test item Limit

Polyvinyl acetate adhesives Rubber adhesives Polyurethanes adhesives Other adhesives

Volatile organic compounds (VOC) (g /L) ≤110 ≤250 ≤100 ≤350

Free formaldehyde (g/kg) ≤1.0 ≤1.0 — ≤1.0

3.4.2 The solvent-thinned adhesives for indoor use in civil building engineering shall be tested for the contents of volatile organic compounds (VOC), benzene and toluene+xylene, and their content limits shall be in accordance with those specified in Table 3.4.2.

Table 3.4.2 Limits for VOC, Benzene and Toluene+Xylene in Solvent-thinned Adhesives for Indoor Use

Item Limit

Neoprene adhesives SBS adhesives Polyurethanes adhesives Other adhesives

Benzene (g/kg) ≤5.0

Toluene+xylene (g/kg) ≤200 ≤150 ≤150 ≤150

Volatile organic compounds (g /L) ≤700 ≤650 ≤700 ≤700

3.4.3 The polyurethane adhesives shall be tested for the content of free toluene diisocyanate (TDI), and the content of free toluene diisocyanate (TDI) in polyurethane paint shall be calculated according to the recommended minimum dilution ratio of product and shall not be larger than 4g/kg. The determination method should meet those specified in Appendix D of the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Adhesives" (GB 18583-2008).

3.4.4 The determination methods for the contents of free formaldehyde and volatile organic compounds (VOC) in the water-based formal adhesives should meet those specified in Appendix A and Appendix F of the current national standard "Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Adhesives" (GB 18583-2008).

3.4.5 The determination methods for the contents of volatile organic compounds (VOC), benzene and toluene+xylene in the solvent-thinned adhesives should meet those specified in Appendix C of this code.



3.5 Water-based Treatment Agents



3.5.1 The water-based fire retardant (including fire retardant paint), waterproofing agent, anticorrosive agent and other water-based treatment agents for the indoor use of civil building engineering shall be tested for the content of free formaldehyde, and the content limits shall be in accordance with those specified in Table 3.5.1.

Table 3.5.1 Limits for Free Formaldehyde in Water-based Treatment Agents for Indoor Use

Test item limit

Free formaldehyde (mg/kg) ≤100

3.5.2 The determination methods for the content of free formaldehyde in water-based treatment agents should be carried out according to the method given in the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Interior Architectural Coatings" (GB 18582).



3.6 Others



3.6.1 For the flame retardant and concrete admixtures that are used in civil building engineering and can release ammonia, their release amount of ammonia shall not be larger than 0.10%, and the determination method shall meet the relevant regulations stated in the current national standard "Limit of Ammonia Emitted from the Concrete Admixtures" (GB 18588).

3.6.2 For the concrete admixtures that can release formaldehyde, the content of free formaldehyde shall not be larger than 500mg/kg, and the determination method shall meet the relevant regulations stated in the current national standard "Indoor Decorating and Refurbishing Materials - Limit of Harmful Substances of Interior Architectural Coatings" (GB 18582).

3.6.3 For the materials for bonding timber structures in civil building engineering, the content of released formaldehyde shall not be larger than 0.12mg/m3, and the determination method shall meet the relevant regulations stated in Appendix B of this code.

3.6.4 For the wall hangings and curtains used for interior decoration in civil building engineering, their content of released formaldehyde shall not be larger than 0.12mg/m3, and the determination method shall meet the relevant regulations stated in Appendix B of this code.

3.6.5 The content of free formaldehyde of the wallpapers for indoor use in civil building engineering shall not be larger than 120mg/kg, and the determination method shall meet the relevant regulations stated in the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Wallpapers" (GB 18585).

3.6.6 The determination methods for the contents of volatile matters in the polyvinyl chloride floor coverings for indoor use in civil building engineering shall meet those specified in the current national standard "Indoor Decorating and Refurbishing Materials-Limit of Harmful Substances of Polyvinyl Chloride Floor Coverings" (GB 18586), and the limits shall be in accordance with those specified in Table 3.6.6.

Table 3.6.6 Limits for Volatile Matters in Polyvinyl Chloride Floor Coverings

Name Limit (g/m2)

Foaming floor coverings Fiber glass base material ≤75

Other base materials ≤35

Nonfoaming floor coverings Fiber glass base material ≤40

Other base materials ≤10

3.6.7 The determination methods for the release amount of total volatile organic compounds and free formaldehyde in the carpet and carpet underlay for indoor use in civil building engineering shall meet those specified in Appendix B of this code, and their limits shall be in accordance with the relevant regulations given in Table 3.6.7.

Table 3.6.7 Release Limits of Harmful Substances in Carpet and Carpet Underlay

Name Harmful substance item Limit (mg/m2·h)

Grade A Grade B

Carpet Total volatile organic compounds ≤0.500 ≤0.600

Free formaldehyde ≤0.050 ≤0.050

Carpet underlay Total volatile organic compounds ≤1.000 ≤1.200

Free formaldehyde ≤0.050 ≤0.050





4 Survey and Design for Building Engineering



4.1 General Requirements



4.1.1 Before designing the constructed and extended civil building engineering, investigations on the radon concentration in the soil or the radon exhalation rate from soil surface in the urban area in which the building engineering is located shall be conducted, and the corresponding investigation reports shall be submitted. If determination of radon concentration in soil and radon exhalation rate from soil surface in the area is not carried out, then the determination of radon concentration in soil and radon exhalation rate from soil at the building site shall be carried out and the corresponding test reports shall be provided.

4.1.2 The design of civil building engineering shall control the consumption of decorative materials according to the building type and purpose.

4.1.3 The indoor ventilation design of civil building engineering shall meet the relevant regulations of the current national standard "Code for Design of Civil Buildings" (GB 50352); as for the civil building engineering adopting central air conditioner, the fresh air volume shall meet the relevant regulations of the current national standard "Design Standard for Energy Efficiency of Public Buildings" (GB 50189).

4.1.4 For the civil building engineering adopting natural ventilation, the effective opening area for ventilation of the natural room shall not be less than 1/20 of the floor area of this room. Where the Category I civil building engineering in hot summer and cold winter zones, cold zones and severe cold zones need to be used with the doors and windows closed for a long time, the rooms shall be taken with ventilation measures.



4.2 Soil Radon Concentration Investigation and Radon Prevention on Construction Sites



4.2.1 The engineering geological survey information of the constructed and extended civil building engineering shall include the historical determination data of soil radon concentration and the mean value data of soil radon concentration or radon exhalation rate from soil surface in the urban area in which the engineering is located.

4.2.2 For the civil building engineering for which the regional determination of radon concentration in soil and radon exhalation rate from soil surface has already been done, if the mean value of the determination results of soil radon concentration is not larger than 10000Bq/m3 or the mean value of the determination results of radon exhalation rate from soil surface is not larger than 0.02Bq/(m2·s) and the there is no geological fault structure in the location of construction site, the determination of soil radon concentration may not be carried out; under other conditions, the determination of soil radon concentration or radon exhalation rate from soil surface on the construction sites all shall be carried out.

4.2.3 No radon-prevention engineering measures may be adopted if the soil radon concentration is not larger than 20000 Bq/m3 or the radon exhalation rate from soil surface is not larger than 0.05Bq/(m2·s) at the site of civil building engineering.

4.2.4 Proper anti-crack measures shall be taken for the ground floor of the building if the determination result of soil radon concentration is larger than 20000Bq/m3 and is less than 30000Bq/m3 or the radon exhalation rate from soil surface is larger than 0.05Bq/(m2·s) and is less than 0.1Bq/(m2·s) at the site of civil building engineering.

4.2.5 In addition to the anti-crack measures for the ground floor of building, the building foundation must also be treated according to the Grade 1 waterproofing requirement as specified in the current national standard "Technical Code for Waterproofing of Underground Works" (GB 50108) if the determination result of soil radon concentration is larger than or equal to 30000Bq/m3 and is less than 50000Bq/m3 or the radon exhalation rate from soil surface is larger than or equal to 0.1Bq/(m2·s) and is less than 0.3Bq/(m2·s) at the site of civil building engineering.

4.2.6 Comprehensive radon-prevention measures shall be taken for the building if the soil radon concentration is larger than or equal to 50000Bq/m3 or the mean value of the radon exhalation rate from soil surface is larger than or equal to 0.3Bq/(m2·s) at the site of civil building engineering.

4.2.7 At the site of Category I civil building engineering, if the radon concentration in soil larger than or equal to 50000Bq/m3 or the radon exhalation rate from soil surface is larger than or equal to 0.3Bq/(m2·s), the determination of the specific activity of radium-266, thorium-232 and kalium-40 in the soil on the construction site shall be carried out. If the internal exposure index (IRa) is larger than 1.0 or the external exposure index (Iγ) is larger than 1.3, the soil on the construction site shall not be used as the backfilling soil of the engineering.

4.2.8 The respective determination methods for the radon concentration in soil and the radon exhalation rate from soil surface at the site of civil building engineering shall meet those specified in Appendix E of this code.

1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Building Materials
3.1 Main Inorganic Nonmetal Building Materials and Decorative Materials
3.2 Wood-based Panels and Decorated Wood-based Panels
3.3 Coatings
3.4 Adhesives
3.5 Water-based Treatment Agents
3.6 Others
4 Survey and Design for Building Engineering
4.1 General Requirements
4.2 Soil Radon Concentration Investigation and Radon Prevention on Construction Sites
4.3 Material Selection
5 Construction
5.1 General Requirements
5.2 On-site Examination on Building Materials
5.3 Construction Requirements
6 Inspection and Acceptance
Appendix A Determination of Radon Exhalation Rate from the Material Surface
Appendix B Determination of Content of Released Formaldehyde in Building Materials Using Environmental Test Chamber
Appendix C Determination of Volatile Organic Compounds (VOC) and Benzene Series in Solvent-thinned Coatings and Adhesives
Appendix D Requirements for Radon Control in Design and Construction of New Residential Buildings
Appendix E Determination of Radon Concentration in Soil and Radon Exhalation Rate from the Soil Surface
Appendix F Determination of Benzene in Indoor Air
Appendix G Determination of Total Volatile Organic Compounds (TVOC) in the Indoor Air
Explanation of Wording in this Code
List of Quoted Standards

1 总则
1．0．1 为了预防和控制民用建筑工程中建筑材料和装修材料产生的室内环境污染，保障公众健康，维护公共利益，做到技术先进、经济合理，制定本规范。
1．0．2 本规范适用于新建、扩建和改建的民用建筑工程室内环境污染控制，不适用于工业生产建筑工程、仓储性建筑工程、构筑物和有特殊净化卫生要求的室内环境污染控制，也不适用于民用建筑工程交付使用后，非建筑装修产生的室内环境污染控制。
1．0．3 本规范控制的室内环境污染物有氡(简称Rn-222)、甲醛、氨、苯和总挥发性有机化合物(简称TVOC)。
1．0．4 民用建筑工程根据控制室内环境污染的不同要求，划分为以下两类：
1 Ⅰ类民用建筑工程：住宅、医院、老年建筑、幼儿园、学校教室等民用建筑工程；
2 Ⅱ类民用建筑工程：办公楼、商店、旅馆、文化娱乐场所、书店、图书馆、展览馆、体育馆、公共交通等候室、餐厅、理发店等民用建筑工程。
1．0．5 民用建筑工程所选用的建筑材料和装修材料必须符合本规范的有关规定。
1．0．6 民用建筑工程室内环境污染控制除应符合本规范的规定外，尚应符合国家现行的有关标准的规定。
2 术语和符号
2．1 术语
2．1．1 民用建筑工程 civil building engineering
指民用建筑工程是新建、扩建和改建的民用建筑结构工程和装修工程的统称。
2．1．2 环境测试舱 environmental test chamber
模拟室内环境测试建筑材料和装修材料的污染物释放量的设备。
2．1．3 表面氡析出率 radon exhalation rate from the surface
单位面积、单位时间土壤或材料表面析出的氡的放射性活度。
2．1．4 内照射指数(IRa) internal exposure index
建筑材料中天然放射性核素镭-226的放射性比活度，除以比活度限量值200而得的商。
2．1．5 外照射指数(Iγ) external exposure index
建筑材料中天然放射性核素镭-226、钍-232和钾-40的放射性比活度，分别除以比活度限量值370、260、4200而得的商之和。
2．1．6 氡浓度 radon concentration
单位体积空气中氡的放射性活度。
2．1．7 人造木板 wood-based panels
以植物纤维为原料，经机械加工分离成各种形状的单元材料，再经组合并加入胶粘剂压制而成的板材，包括胶合板、纤维板、刨花板等。
2．1．8 饰面人造木板 decorated wood-based panels
以人造木板为基材，经涂饰或复合装饰材料面层后的板材。
2．1．9 水性涂料 water-based coatings
以水为稀释剂的涂料。
2．1．10 水性胶粘剂 water-based adhesives
以水为稀释剂的胶粘剂。
2．1．11 水性处理剂 Water-based treatment agents
以水作为稀释剂，能浸入建筑材料和装修材料内部，提高其阻燃、防水、防腐等性能的液体。
2．1．12 溶剂型涂料 solyent-thinned coatings
以有机溶剂作为稀释剂的涂料。
2．1．13 溶剂型胶粘剂 solvent-thinned adhesives
以有机溶剂作为稀释剂的胶粘剂。
2．1．14 游离甲醛释放量 content of released formaldehyde
在环境测试舱法或干燥器法的测试条件下，材料释放游离甲醛的量。
2．1．15 游离甲醛含量 content of free formaldehvde
在穿孔法的测试条件下，材料单位质量中含有游离甲醛的量。
2．1．16 总挥发性有机化合物 total volatile organic compounds
在本规范规定的检测条件下，所测得空气中挥发性有机化合物的总量。简称TVOC。
2．1．17 挥发性有机化合物 volatile organic compound
在本规范规定的检测条件下，所测得材料中挥发性有机化合物的总量。简称VOC。
2．2 符号
IRa——内照射指数；
Iγ——外照射指数；
CRa——建筑材料中天然放射性核素镭-226的放射性比活度；
CTh——建筑材料中天然放射性核素钍-232的放射性比活度；
CK——建筑材料中天然放射性核素钾-40的放射性比活度，贝可／千克(Bq／kg)；
fi——第i种材料在材料总用量中所占的质量百分比(％)；
IRai——第i种材料的内照射指数；
Iγi——第i种材料的外照射指数。
3 材料
3．1 无机非金属建筑主体材料和装修材料
3．1．1 民用建筑工程所使用的砂、石、砖、砌块、水泥、混凝土、混凝土预制构件等无机非金属建筑主体材料的放射性限量，应符合表3．1．1的规定。
表3．1．1 无机非金属建筑主体材料的放射性限量
测定项目 限量
内照射指数IRa ≤1.0
外照射指数Iγ ≤1.0
3．1．2 民用建筑工程所使用的无机非金属装修材料。包括石材、建筑卫生陶瓷、石膏板、吊顶材料、无机瓷质砖粘结材料等，进行分类时，其放射性限量应符合表3．1．2的规定。
表3．1．2 无机非金属装修材料放射性限量
测定项目 限量
A B
内照射指数IRa ≤1.0 ≤1.3
外照射指数Iγ ≤1.3 ≤1.9
3．1．3 民用建筑工程所使用的加气混凝土和空心率(孔洞率)大于25％的空心砖、空心砌块等建筑主体材料，其放射性限量应符合表3．1．3的规定。
表3．1．3 加气混凝土和空心率(孔洞率)大于25％
的建筑主体材料放射性限量
测定项目 限量
表面氡析出率[Bq／(m2·s)] ≤0.015
内照射指数IRa ≤1.0
外照射指数Iγ ≤1.3
3．1．4 建筑主体材料和装修材料放射性核素的检测方法应符合现行国家标准《建筑材料放射性核素限量》GB 6566的有关规定，表面氡析出率的检测方法应符合本规范附录A的规定。
3．2 人造木板及饰面人造木板
3．2．1 民用建筑工程室内用人造木板及饰面人造木板。必须测定游离甲醛含量或游离甲醛释放量。
3．2．2 当采用环境测试舱法测定游离甲醛释放量，并依此对人造木板进行分级时，其限量应符合现行国家标准《室内装饰装修材料人造板及其制品中甲醛释放限量》GB 18580的规定，见表3．2．2。
表3．2．2 环境测试舱法测定游离甲醛释放量限量
级别 限量(mg／m3)
E1 ≤0.12
3．2．3 当采用穿孔法测定游离甲醛含量，并依此对人造木板进行分级时，其限量应符合现行国家标准《室内装饰装修材料人造板及其制品中甲醛释放限量》GB 18580的规定。
3．2．4 当采用干燥器法测定游离甲醛释放量，并依此对人造木板进行分级时，其限量应符合现行国家标准《室内装饰装修材料 人造板及其制品中甲醛释放限量》GB 18580的规定。
3．2．5 饰面人造木板可采用环境测试舱法或干燥器法测定游离甲醛释放量，当发生争议时应以环境测试舱法的测定结果为准；胶合板、细木工板宜采用干燥器法测定游离甲醛释放量；刨花板、纤维板等宜采用穿孔法测定游离甲醛含量。
3．2．6 环境测试舱法测定游离甲醛释放量，宜按本规范附录B进行。
3．2．7 采用穿孔法及干燥器法进行检测时，应符合现行国家标准《室内装饰装修材料 人造板及其制品中甲醛释放限量》GB 18580的规定。
3．3 涂料
3．3．1 民用建筑工程室内用水性涂料和水性腻子，应测定游离甲醛的含量，其限量应符合表3．3．1的规定。
表3．3．1 室内用水性涂料和水性腻子中游离甲醛限量
测定项目 限量
水性涂料 水性腻子
游离甲醛(mg／kg) ≤100
3．3．2 民用建筑工程室内用溶剂型涂料和木器用溶剂型腻子，应按其规定的最大稀释比例混合后，测定VOC和苯、甲苯＋二甲苯＋乙苯的含量，其限量应符合表3．3．2的规定。
表3．3．2 室内用溶剂型涂料和木器用溶剂型腻子中
VOC、苯、甲苯＋二甲苯＋乙苯限量
涂料类别 VOC(g／L) 苯(％) 甲苯＋二甲苯＋乙苯(％)
醇酸类涂料 ≤500 ≤0.3 ≤5
硝基类涂料 ≤720 ≤0.3 ≤30
聚氨酯类涂料 ≤670 ≤0.3 ≤30
酚醛防锈漆 ≤270 ≤0.3 —
其他溶剂型涂料 ≤600 ≤0.3 ≤30
木器用溶剂型腻子 ≤550 ≤0.3 ≤30
3．3．3 聚氨酯漆测定固化剂中游离二异氰酸酯(TDI、HDI)的含量后，应按其规定的最小稀释比例计算出聚氨酯漆中游离二异氰酸酯(TDI、HDI)含量，且不应大于4g／kg。测定方法宜符合现行国家标准《色漆和清漆用漆基异氰酸酯树脂中二异氰酸酯(TDI)单体的测定》GB／T 18446的有关规定。
3．3．4 水性涂料和水性腻子中游离甲醛含量的测定方法，宜符合现行国家标准《室内装饰装修材料内墙涂料中有害物质限量》GB18582有关的规定。
3．3．5 溶剂型涂料中挥发性有机化合物(VOC)、苯、甲苯＋二甲苯＋乙苯含量测定方法，宜符合本规范附录C的规定。
3．4 胶粘剂
3．4．1 民用建筑工程室内用水性胶粘剂，应测定挥发性有机化合物(VOC)和游离甲醛的含量，其限量应符合表3．4．1的规定。
表3．4．1 室内用水性胶粘剂中VOC和游离甲醛限量
测定项目 限量
聚乙酸乙烯酯胶粘剂 橡胶类胶粘剂 聚氨酯类胶粘剂 其他胶粘剂
挥发性有机化合物(VOC)(g／L) ≤110 ≤250 ≤100 ≤350
游离甲醛(g／kg) ≤1.0 ≤1.0 — ≤1.0
3．4．2 民用建筑工程室内用溶剂型胶粘剂，应测定挥发性有机化合物(VOC)、苯、甲苯＋二甲苯的含量，其限量应符合表3．4．2的规定。
表3．4．2 室内用溶剂型胶粘剂中VOC、
苯、甲苯＋二甲苯限量
项目 限量
氯丁橡胶胶粘剂 SBS胶粘剂 聚氨酯类胶粘剂 其他胶粘剂
苯(g／kg) ≤5.0
甲苯＋二甲苯(g／kg) ≤200 ≤150 ≤150 ≤150
挥发性有机物(g／L) ≤700 ≤650 ≤700 ≤700
3．4．3 聚氨酯胶粘剂应测定游离甲苯二异氰酸酯(TDI)的含量，按产品推荐的最小稀释量计算出聚氨酯漆中游离甲苯二异氰酸酯(TDI)含量，且不应大于4g／kg。测定方法宜符合现行国家标准《室内装饰装修材料 胶粘剂中有害物质限量》GB 18583—2008附录D的规定。
3．4．4 水性缩甲醛胶粘剂中游离甲醛、挥发性有机化合物(VOC)含量的测定方法，宜符合现行国家标准《室内装饰装修材料胶粘剂中有害物质限量》GB 18583—2008附录A和附录F的规定。
3．4．5 溶剂型胶粘剂中挥发性有机化合物(VOC)、苯、甲苯＋二甲苯含量测定方法，宜符合本规范附录C的规定。
3．5 水性处理剂
3．5．1 民用建筑工程室内用水性阻燃剂(包括防火涂料)、防水剂、防腐剂等水性处理剂，应测定游离甲醛的含量，其限量应符合表3．5．1的规定。
表3．5．1 室内用水性处理剂中游离甲醛限量
测定项目 限量
游离甲醛(mg／kg) ≤100
3．5．2 水性处理剂中游离甲醛含量的测定方法，宜按现行国家标准《室内装饰装修材料 内墙涂料中有害物质限量》GB 18582的方法进行。
3．6 其他材料
3．6．1 民用建筑工程中所使用的能释放氨的阻燃剂、混凝土外加剂，氨的释放量不应大于0.10％，测定方法应符合现行国家标准《混凝土外加剂中释放氨的限量》GB 18588的有关规定。
3．6．2 能释放甲醛的混凝土外加剂，其游离甲醛含量不应大于500mg／kg，测定方法应符合现行国家标准《室内装饰装修材料内墙涂料中有害物质限量》GB 18582的有关规定。
3．6．3 民用建筑工程中使用的粘合木结构材料，游离甲醛释放量不应大于0.12mg／m3，其测定方法应符合本规范附录B的有关规定。
3．6．4 民用建筑工程室内装修时，所使用的壁布、帷幕等游离甲醛释放量不应大于0.12mg／m3，其测定方法应符合本规范附录B的有关规定。
3．6．5 民用建筑工程室内用壁纸中甲醛含量不应大于120mg／kg，测定方法应符合现行国家标准《室内装饰装修材料 壁纸中有害物质限量》GB 18585的有关规定。
3．6．6 民用建筑工程室内用聚氯乙烯卷材地板中挥发物含量测定方法应符合现行国家标准《室内装饰装修材料 聚氯乙烯卷材地板中有害物质限量》GB 18586的规定，其限量应符合表3．6．6的有关规定。
表3．6．6 聚氯乙烯卷材地板中挥发物限量
名称 限量(g／m2)
发泡类卷材地板 玻璃纤维基材 ≤75
其他基材 ≤35
非发泡类卷材地板 玻璃纤维基材 ≤40
其他基材 ≤10
3．6．7 民用建筑工程室内用地毯、地毯衬垫中总挥发性有机化合物和游离甲醛的释放量测定方法应符合本规范附录B的规定，其限量应符合表3．6．7的有关规定。
表3．6．7 地毯、地毯衬垫中有害物质释放限量
名称 有害物质项目 限量(mg／m2·h)
A级 B级
地毯 总挥发性有机化合物 ≤0.500 ≤0.600
游离甲醛 ≤0.050 ≤0.050
地毯衬垫 总挥发性有机化合物 ≤1.000 ≤1.200
游离甲醛 ≤0.050 ≤0.050
4 工程勘察设计
4．1 一般规定
4．1．1 新建、扩建的民用建筑工程设计前，应进行建筑工程所在城市区域土壤中氡浓度或土壤表面氡析出率调查。并提交相应的调查报告。未进行过区域土壤中氡浓度或土壤表面氡析出率测定的，应进行建筑场地土壤中氡浓度或土壤氡析出率测定，并提供相应的检测报告。
4．1．2 民用建筑工程设计应根据建筑物的类型和用途控制装修材料的使用量。
4．1．3 民用建筑工程的室内通风设计，应符合现行国家标准《民用建筑设计通则》GB 50352的有关规定，对于采用中央空调的民用建筑工程，新风量应符合现行国家标准《公共建筑节能设计标准》GB 50189的有关规定。
4．1．4 采用自然通风的民用建筑工程，自然间的通风开口有效面积不应小于该房间地板面积的1／20。夏热冬冷地区、寒冷地区、严寒地区等Ⅰ类民用建筑工程需要长时间关闭门窗使用时，房间应采取通风换气措施。
4．2 工程地点土壤中氡浓度调查及防氡
4．2．1 新建、扩建的民用建筑工程的工程地质勘察资料，应包括工程所在城市区域土壤氡浓度或土壤表面氡析出率测定历史资料及土壤氡浓度或土壤表面氡析出率平均值数据。
4．2．2 已进行过土壤中氡浓度或土壤表面氡析出率区域性测定的民用建筑工程，当土壤氡浓度测定结果平均值不大于10000Bq／m3或土壤表面氡析出率测定结果平均值不大于0.02Bq／(m2·s)，且工程场地所在地点不存在地质断裂构造时，可不再进行土壤氡浓度测定；其他情况均应进行工程场地土壤氡浓度或土壤表面氡析出率测定。
4．2．3 当民用建筑工程场地土壤氡浓度不大于20000Bq／m3或土壤表面氡析出率不大于0.05Bq／(m2·s)时，可不采取防氡工程措施。
4．2．4 当民用建筑工程场地土壤氡浓度测定结果大于20000Bq／m3，且小于30000Bq／m3，或土壤表面氡析出率大于0.05Bq／(m2·s)且小于0.1Bq／(m2·s)时。应采取建筑物底层地面抗开裂措施。
4．2．5 当民用建筑工程场地土壤氡浓度测定结果大于或等于30000Bq／m3，且小于50000Bq／m3，或土壤表面氡析出率大于或等于0.1Bq／(m2·s)且小于0.3Bq／(m2·s)时，除采取建筑物底层地面抗开裂措施外。还必须按现行国家标准《地下工程防水技术规范》GB 50108中的一级防水要求。对基础进行处理。
4．2．6 当民用建筑工程场地土壤氡浓度大干或等于50000Bq／m3或土壤表面氡析出率平均值大于或等于0.3Bq／(m2·s)时，应采取建筑物综合防氡措施。
4．2．7 当Ⅰ类民用建筑工程场地土壤中氡浓度大于或等于50000Bq／m3，或土壤表面氡析出率大于或等于0.3Bq／(m2·s)时，应进行工程场地土壤中的镭-266、钍-232、钾-40比活度测定。当内照射指数(IRa)大于1.0或外照射指数(Iγ)大于1.3时，工程场地土壤不得作为工程回填土使用。
4．2．8 民用建筑工程场地土壤中氡浓度测定方法及土壤表面氡析出率测定方法应符合本规范附录E的规定。
4．3 材料选择
4．3．1 民用建筑工程室内不得使用国家禁止使用、限制使用的建筑材料。
4．3．2 Ⅰ类民用建筑工程室内装修采用的无机非金属装修材料必须为A类。
4．3．3 Ⅱ类民用建筑工程宜采用A类无机非金属装修材料；当A类和B类无机非金属装修材料混合使用时，每种材料的使用量应按下式计算：
∑fi·IRai≤1.0 (4．3．3-1)
∑fi·Iγi≤1.3 (4．3．3-2)
式中：fi——第i种材料在材料总用量中所占的质量百分比(％)；
IRai——第i种材料的内照射指数；
Iγi——第i种材料的外照射指数。
4．3．4 Ⅰ类民用建筑工程的室内装修，采用的人造木板及饰面人造木板必须达到E1级要求。
4．3．5 Ⅱ类民用建筑工程的室内装修，采用的人造木板及饰面人造木板宜达到E1级要求；当采用E2级人造木板时，直接暴露于空气的部位应进行表面涂覆密封处理。
4．3．6 民用建筑工程的室内装修，所采用的涂料、胶粘剂、水性处理剂，其苯、甲苯和二甲苯、游离甲醛、游离甲苯二异氰酸酯(TDI)、挥发性有机化合物(VOC)的含量，应符合本规范的规定。
4．3．7 民用建筑工程室内装修时，不应采用聚乙烯醇水玻璃内墙涂料、聚乙烯醇缩甲醛内墙涂料和树脂以硝化纤维素为主、溶剂以二甲苯为主的水包油型(O／w)多彩内墙涂料。
4．3．8 民用建筑工程室内装修时，不应采用聚乙烯醇缩甲醛类胶粘剂。
4．3．9 民用建筑工程室内装修中所使用的木地板及其他木质材料。严禁采用沥青、煤焦油类防腐、防潮处理剂。
4．3．10 Ⅰ类民用建筑工程室内装修粘贴塑料地板时，不应采用溶剂型胶粘剂。
4．3．11 Ⅱ类民用建筑工程中地下室及不与室外直接自然通风的房间粘贴塑料地板时，不宜采用溶剂型胶粘剂。
4．3．12 民用建筑工程中，不应在室内采用脲醛树脂泡沫塑料作为保温、隔热和吸声材料。
5 工程施工
5．1 一般规定
5．1．1 建设、施工单位应按设计要求及本规范的有关规定，对所用建筑材料和装修材料进行进场抽查复验。
5．1．2 当建筑材料和装修材料进场检验，发现不符合设计要求及本规范的有关规定时，严禁使用。
5．1．3 施工单位应按设计要求及本规范的有关规定进行施工，不得擅自更改设计文件要求。当需要更改时，应按规定程序进行设计变更。
5．1．4 民用建筑工程室内装修，当多次重复使用同一设计时，宜先做样板间，并对其室内环境污染物浓度进行检测。
5．1．5 样板间室内环境污染物浓度的检测方法，应符合本规范第6章的有关规定。当检测结果不符合本规范的规定时，应查找原因并采取相应措施进行处理。
5．2 材料进场检验
5．2．1 民用建筑工程中所采用的无机非金属建筑材料和装修材料必须有放射性指标检测报告，并应符合设计要求和本规范的有关规定。
5．2．2 民用建筑工程室内饰面采用的天然花岗岩石材或瓷质砖使用面积大于200m2时，应对不同产品、不同批次材料分别进行放射性指标的抽查复验。
5．2．3 民用建筑工程室内装修中所采用的人造木板及饰面人造木板，必须有游离甲醛含量或游离甲醛释放量检测报告。并应符合设计要求和本规范的有关规定。
5．2．4 民用建筑工程室内装修中采用的人造木板或饰面人造木板面积大于500m2时，应对不同产品、不同批次材料的游离甲醛含量或游离甲醛释放量分别进行抽查复验。
5．2．5 民用建筑工程室内装修中所采用的水性涂料、水性胶粘剂、水性处理剂必须有同批次产品的挥发性有机化合物(VOC)和游离甲醛含量检测报告；溶剂型涂料、溶剂型胶粘剂必须有同批次产品的挥发性有机化合物(VOC)、苯、甲苯＋二甲苯、游离甲苯二异氰酸酯(TDI)含量检测报告，并应符合设计要求和本规范的有关规定。
5．2．6 建筑材料和装修材料的检测项目不全或对检测结果有疑问时，必须将材料送有资格的检测机构进行检验，检验合格后方可使用。
5．3 施工要求
5．3．1 采取防氡设计措施的民用建筑工程，其地下工程的变形缝、施工缝、穿墙管(盒)、埋设件、预留孔洞等特殊部位的施工工艺，应符合现行国家标准《地下工程防水技术规范》GB 50108的有关规定。
5．3．2 Ⅰ类民用建筑工程当采用异地土作为回填土时，该回填土应进行镭-226、钍-232、钾-40的比活度测定。当内照射指数(IRa)不大于1.0和外照射指数(Ir)不大于1.3时，方可使用。
5．3．3 民用建筑工程室内装修时，严禁使用苯、工业苯、石油苯、重质苯及混苯作为稀释剂和溶剂。
5．3．4 民用建筑工程室内装修施工时，不应使用苯、甲苯、二甲苯和汽油进行除油和清除旧油漆作业。
5．3．5 涂料、胶粘剂、水性处理剂、稀释剂和溶剂等使用后，应及时封闭存放，废料应及时清出。
5．3．6 民用建筑工程室内严禁使用有机溶剂清洗施工用具。
5．3．7 采暖地区的民用建筑工程，室内装修施工不宜在采暖期内进行。
5．3．8 民用建筑工程室内装修中，进行饰面人造木板拼接施工时，对达不到E1级的芯板，应对其断面及无饰面部位进行密封处理。
5．3．9 壁纸(布)、地毯、装饰板、吊顶等施工时，应注意防潮，避免覆盖局部潮湿区域。空调冷凝水导排应符合现行国家标准《采暖通风与空气调节设计规范》GB 50019的有关规定。
6 验收
6．0．1 民用建筑工程及室内装修工程的室内环境质量验收，应在工程完工至少7d以后、工程交付使用前进行。
6．0．2 民用建筑工程及其室内装修工程验收时，应检查下列资料：
1 工程地质勘察报告、工程地点土壤中氡浓度或氡析出率检测报告、工程地点土壤天然放射性核素镭-226、钍-232、钾-40含量检测报告；
2 涉及室内新风量的设计、施工文件，以及新风量的检测报告；
3 涉及室内环境污染控制的施工图设计文件及工程设计变更文件；
4 建筑材料和装修材料的污染物检测报告、材料进场检验记录、复验报告；
5 与室内环境污染控制有关的隐蔽工程验收记录、施工记录；
6 样板间室内环境污染物浓度检测报告(不做样板间的除外)。
6．0．3 民用建筑工程所用建筑材料和装修材料的类别、数量和施工工艺等，应符合设计要求和本规范的有关规定。
6．0．4 民用建筑工程验收时，必须进行室内环境污染物浓度检测，其限量应符合表6．0．4的规定。
表6．0．4 民用建筑工程室内环境污染物浓度限量
污染物 Ⅰ类民用建筑工程 Ⅱ类民用建筑工程
氡(Bq／m3) ≤200 ≤400
甲醛(mg／m3) ≤0.08 ≤0.1
苯(mg／m3) ≤0.09 ≤0.09
氨(mg／m3) ≤0.2 ≤0.2
TVOC(mg／m3) ≤0.5 ≤0.6
注：1 表中污染物浓度测量值，除氡外均指室内测量值扣除同步测定的室外上风向空气测量值(本底值)后的测量值。
2 表中污染物浓度测量值的极限值判定，采用全数值比较法。
6．0．5 民用建筑工程验收时，采用集中中央空调的工程，应进行室内新风量的检测，检测结果应符合设计要求和现行国家标准《公共建筑节能设计标准》GB 50189的有关规定。
6．0．6 民用建筑工程室内空气中氡的检测，所选用方法的测量结果不确定度不应大于25％，方法的探测下限不应大于10Bq／m3。
6．0．7 民用建筑工程室内空气中甲醛的检测方法，应符合现行国家标准《公共场所空气中甲醛测定方法》GB／T 18204．26中酚试剂分光光度法的规定。
6．0．8 民用建筑工程室内空气中甲醛检测，也可采用简便取样仪器检测方法，甲醛简便取样仪器应定期进行校准，测量结果在0.01mg／m3～0.60mg／m3测定范围内的不确定度应小于20％。当发生争议时，应以现行国家标准《公共场所空气中甲醛测定方法》GB／T 18204．26中酚试剂分光光度法的测定结果为准。
6．0．9 民用建筑工程室内空气中苯的检测方法，应符合本规范附录F的规定。
6．0．10 民用建筑工程室内空气中氨的检测方法，应符合现行国家标准《公共场所空气中氨测定方法》GB／T 18204．25中靛酚蓝分光光度法的规定。
6．0．11 民用建筑工程室内空气中总挥发性有机化合物(TVOC)的检测方法，应符合本规范附录G的规定。
6．0．12 民用建筑工程验收时，应抽检每个建筑单体有代表性的房间室内环境污染物浓度，氡、甲醛、氨、苯、TVOC的抽检量不得少于房间总数的5％，每个建筑单体不得少于3间，当房间总数少于3间时，应全数检测。
6．0．13 民用建筑工程验收时，凡进行了样板间室内环境污染物浓度检测且检测结果合格的，抽检量减半，并不得少于3间。
6．0．14 民用建筑工程验收时，室内环境污染物浓度检测点数应按表6．0．14设置。
表6．0．14 室内环境污染物浓度检测点数设詈
房间使用面积(m2) 检测点数(个)
＜50 1
≥50，＜100 2
≥100，＜500 不少于3
≥500，＜1000 不少于5
≥1000，＜3000 不少于6
≥3000 每1000m2不少于3
6．0．15 当房间内有2个及以上检测点时，应采用对角线、斜线、梅花状均衡布点，并取各点检测结果的平均值作为该房间的检测值。
6．0．16 民用建筑工程验收时，环境污染物浓度现场检测点应距内墙面不小于0.5m、距楼地面高度0.8m～1.5m。检测点应均匀分布，避开通风道和通风口。
6．0．17 民用建筑工程室内环境中甲醛、苯、氨、总挥发性有机化合物(TVOC)浓度检测时，对采用集中空调的民用建筑工程，应在空调正常运转的条件下进行；对采用自然通风的民用建筑工程，检测应在对外门窗关闭1h后进行。对甲醛、氨、苯、TVOC取样检测时，装饰装修工程中完成的固定式家具，应保持正常使用状态。
6．0．18 民用建筑工程室内环境中氡浓度检测时，对采用集中空调的民用建筑工程，应在空调正常运转的条件下进行；对采用自然通风的民用建筑工程，应在房间的对外门窗关闭24h以后进行。
6．0．19 当室内环境污染物浓度的全部检测结果符合本规范表6．0．4的规定时，应判定该工程室内环境质量合格。
6．0．20 当室内环境污染物浓度检测结果不符合本规范的规定时，应查找原因并采取措施进行处理。采取措施进行处理后的工程，可对不合格项进行再次检测。再次检测时，抽检量应增加1倍，并应包含同类型房间及原不合格房间。再次检测结果全部符合本规范的规定时，应判定为室内环境质量合格。