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Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. According to the requirements of Guangdong Provincial Department of Construction's Notice on Compilation Task of Guangdong Local Standard Technical code for indoor environmental pollution control of civil building engineering (YUEJIANKEHAN [2007] No. 333), the compilation team conducted a special study on the relevant detection methods based on the investigation of a large number of standards and research results at home and abroad, and combined with the specific situation of Guangdong Province, and put forward an exposure draft. After soliciting opinions all over the country, and repeated revisions, the Guangdong Provincial Standard Technical code for indoor environmental pollution control of civil building engineering is formulated. This code is divided into seven clauses, i.e. general provisions, terms, materials, survey and design for building engineering, engineering construction, acceptance, quality assurance and quality control, and six annexes of relevant detection methods. Emphasis is placed on the admission detection of pollutants in building materials and decoration materials, attention is paid to the control of pollutants in engineering investigation, design and construction process, and priority is given to the final engineering acceptance. Specific technical requirements are put forward for air quality control in the whole building construction process. Mandatory provisions in this standard are basically consistent with those in GB 50325-2010 Code for indoor environmental pollution control of civil building engineering. The provisions hereof printed in bold type are compulsory provisions and must be enforced strictly. Guangdong Provincial Department of Housing and Urban-Rural Development is in charge of the administration of this code, and Guangzhou City Architectural Research Institute is responsible for the explanation of specific technical contents. Technical code for indoor environmental pollution control of civil building engineering 1 General provisions 1.0.1 This code is formulated with a view to preventing and controlling indoor environmental pollution caused by building materials and decoration materials in civil building engineering, protecting public health, safeguarding public interests, and achieving advanced technology, economy and rationality, in combination with the actual situation of Guangdong Province. 1.0.2 This code is applicable to indoor environmental pollution control for new construction, extension and renovation of civil buildings, and not applicable to indoor environmental pollution control for industrial building engineering, warehouse building engineering or structures, and rooms with special purification or sanitation requirements. Notes: 1 Indoor environmental pollution hereof refers to indoor environmental pollution caused by building materials and decoration materials. After the civil building engineering is delivered for use, indoor environmental pollution caused by non-building decoration materials is not within the control range of this code. 2 Indoor air pollutant content detection in industrial buildings or other buildings may refer to this code. 1.0.3 Indoor environmental pollutants controlled in this code are radon (Rn-222), formaldehyde, ammonia, benzene and total volatile organic compounds (TVOC). 1.0.4 Civil building engineering are divided into the following two categories according to different requirements for controlling indoor environmental pollution: 1 Class I civil building engineering: residential buildings, hospitals, buildings for the aged, kindergartens, school classrooms and other civil building engineering; 2 Class II civil building engineering: office buildings, shops, hotels, cultural and entertainment places, bookstores, libraries, exhibition halls, gymnasiums, waiting rooms for public transportation, restaurants, barbershops and other civil building engineering as well as office places in industrial buildings. 1.0.5 The main building materials and decoration materials used in civil building engineering must meet the requirements hereof. 1.0.6 In addition to the requirements specified hereof, the indoor environmental pollution control of civil building engineering shall also meet the relevant national and professional current standards. 2 Terms 2.0.1 civil building engineering general term of constructed, extended and renovated civil building structure engineering and decoration engineering 2.0.2 environmental test chamber equipment for testing pollutant emission of building materials and decoration materials by simulating indoor environment 2.0.3 radon exhalation rate from soil surface radioactivity (mBq) of radon released from the surface of soil or material per unit area (m2) at per unit time (s), mBq/(m2·s) 2.0.4 internal exposure index quotient (IRa) of specific activity of natural radionuclide radium-226 in building materials divided by the limited value of specific activity 200 2.0.5 external exposure index sum of quotients (Ir) of specific activities of natural radionuclides radium-226, thorium-232 and potassium-40 in building materials divided by their limits respectively (2.0.5) where, CRa, CTh and CK——the specific activities of natural radionuclides radium-226, thorium-232 and potassium-40 in building materials respectively, Bq/kg. 2.0.6 radon concentration radioactivity of radon in air per unit volume 2.0.7 wood-based panels panels of which the raw material is plant fiber which is separated into unit materials of various shapes by mechanical processing, and then combined and pressed with adhesive, including plywood, fiberboard, particleboard, etc. 2.0.8 decorated wood-based panels plate of which the artificial wood panel is used as the base, finished or of which the surface layer is compounded with decorative materials 2.0.9 water-based coatings coatings with water as diluent 2.0.10 water-based adhesives adhesives with water as diluent 2.0.11 water-based treatment agents liquid with water as diluent, which can be immersed in building materials and decoration materials to improve their flame retardant, waterproof and anticorrosion and other properties 2.0.12 solvent-thinned coatings coatings with organic solvents as diluent 2.0.13 solvent-thinned adhesives adhesives with organic solvents as diluent 2.0.14 content of released formaldehyde amount of free formaldehyde released by materials by environmental test chamber method or dryer method 2.0.15 content of free formaldehyde amount of free formaldehyde in unit mass of material by perforation method 2.0.16 total volatile organic compounds total amount of volatile organic compounds in the air determined under the conditions specified hereof, referred to as TVOC 2.0.17 volatile organic compound total amount of volatile organic compounds in the material determined under the conditions specified hereof, referred to as VOC 2.0.18 infiltration rate percentage of indoor air volume from outdoor to indoor air volume in the room within one hour, % 3 Materials 3.1 Inorganic non-metallic main building materials and decoration materials 3.1.1 The radioactive indicator limit of inorganic non-metallic building materials such as sand, stone, cement, brick, block, fly ash as well as concrete and concrete prefabricated components used in civil building engineering shall meet the requirements of Table 3.1.1. Table 3.1.1 Radioactivity limits for inorganic non-metallic building materials Determination item Limit Internal exposure index (IRa) ≤1.0 External exposure index (Ir) ≤1.0 3.1.2 When classifying inorganic non-metallic decorative materials used in civil building engineering, including stone materials, building sanitary ceramics, gypsum board, ceiling materials, inorganic ceramic tile adhesive materials, etc., the radioactivity limit shall meet those specified in Table 3.1.2. Table 3.1.2 Radioactivity limit of inorganic non-metallic building decorative materials Measuring item Limit A B Internal exposure index (IRa) ≤1.0 ≤1.3 External exposure index (Ir) ≤1.3 ≤1.9 3.1.3 The use range of Class A decorative materials is not limited; Class B materials can't be used for the interior decoration of Class I civil buildings, but can be used for the interior decoration of Class II civil buildings, industrial buildings and the exterior decoration of all other buildings. 3.1.4 The radioactivity limit of aerated concrete and building materials such as hollow bricks and hollow blocks with hollow ratio (void ratio) greater than 25% used in civil building engineering shall meet those specified in Table 3.1.4. Table 3.1.4 Radioactivity limit of aerated concrete and building materials with hollow ratio (void ratio) greater than 25% Determination item Limit Radon exhalation rate from soil surface [mBq/(m2s)] ≤15 Internal exposure index (IRa) ≤1.0 External exposure index (Ir) ≤1.3 3.1.5 The detection method of radionuclide in main materials and decorative materials of building shall meet the relevant requirements of the current national standard GB 6566 Limits of radionuclides in building materials. The detection method of radon exhalation rate from soil surface shall meet the relevant requirements of the current national standard GB/T 16143 Charcoal canister method for measuring 222Rn exhalation rate from building surface or the Annex A of GB 50325-2010 Code for indoor environmental pollution control of civil building engineering. 3.2 Wood-based panels and decorated wood-based panels 3.2.1 The content of free formaldehyde or released formaldehyde must be determined for indoor wood-based panels and decorated wood-based panels in civil building engineering. 3.2.2 When the content of released formaldehyde is measured by the environmental test chamber method, and the wood-based panels are classified accordingly, the limit shall meet those specified in Table 3.2.2. Table 3.2.2 Determination of content limit of released formaldehyde using environmental test chamber method Level Limit (mg/m3) E1 ≤0.12 3.2.3 When the content of free formaldehyde is determined by the perforation method and the wood-based panels are graded accordingly, the limit shall meet the relevant requirements of the current national standard GB 18580 Indoor decorating and refurbishing materials - Limit of formaldehyde emission of wood-based panels and finishing products. 3.2.4 When the content of released formaldehyde is determined by the dryer method, and the wood-based panels are graded accordingly, the limit shall meet the relevant requirements of the current national standard GB 18580 Indoor decorating and refurbishing materials - Limit of formaldehyde emission of wood-based panels and finishing products. 3.2.5 The content of released formaldehyde of decorated wood-based panels may be determined by the environmental test chamber method or dryer method. In case of any dispute, the determination result of the environmental test chamber method shall prevail; the content of released formaldehyde of ply-wood and blockboard should be determined by the dryer method; the particleboard, fiberboard should be determined by the perforation method. 3.2.6 When determining the content of released formaldehyde by using environmental test chamber method, the determination should be carried out according to Annex A hereof. 3.2.7 When perforation method and dryer method are used for detection, they shall meet the relevant requirements of the current national standard GB 18580 Indoor decorating and refurbishing materials - Limit of formaldehyde emission of wood-based panels and finishing products. When dryer method is used for detection, the four sides of the sample shall be sealed with formaldehyde-free aluminum tape. 3.3 Coating 3.3.1 For indoor water-based coatings and water-based putty in civil building engineering, the content of free formaldehyde shall be determined, and its limit shall meet those specified in Table 3.3.1. Table 3.3.1 Limit of free formaldehyde in indoor water-based coatings and water-based putty Determination item Limit Free formaldehyde (mg/kg) ≤100 3.3.2 The indoor solvent-thinned coatings and solvent-thinned putty for woodenware in civil building engineering shall be mixed according to the specified maximum dilution ratio, and then the contents of VOC and benzene, methylbenzene + dimethylbenzene + ethylbenzene shall be determined, and their limits shall meet those specified in Table 3.3.2. Table 3.3.2 Limits of VOC and benzene, methylbenzene + dimethylbenzene + ethylbenzene in indoor solvent-thinned coatings and solvent-thinned putty for woodenware Name of coating VOC (g/L) Benzene (%) Methylbenzene + dimethylbenzene + ethylbenzene (%) Alkyd coatings ≤500 ≤0.3 ≤5 Nitrocellulose coatings ≤720 ≤0.3 ≤30 Polyurethane coatings ≤670 ≤0.3 ≤30 Phenolic anti-rust paint ≤270 ≤0.3 - Other solvent-thinned coatings ≤600 ≤0.3 ≤30 Solvent-thinned putty for woodenware ≤550 ≤0.3 ≤30 3.3.3 For polyurethane paint, after determining the content of free diisocyanate (TDI, HDI) in curing agent, the content of free diisocyanate (TDI, HDI) in polyurethane paint shall be calculated according to the specified minimum dilution ratio, and shall not exceed 4g/kg. The determination method should meet the relevant requirements of the current national standard GB/T 18446 Binders for paints and varnishes - Determination of monomeric diisocyanates in isocyanate resins. 3.3.4 The determination method of free formaldehyde content in water-based coatings and water-based putty should meet the relevant requirements of the current national standard GB 18582 Indoor decorating and refurbishing materials - Limit of harmful substances of interior architectural coatings. 3.3.5 The determination method of VOC and benzene, methylbenzene + dimethylbenzene + ethylbenzene in solvent-thinned coatings should be carried out according to Annex B hereof. 3.4 Adhesive 3.4.1 The content of volatile organic compounds (VOC) and free formaldehyde in indoor water-based adhesives for civil building engineering shall be determined, and the limits shall meet those specified in Table 3.4.1. Table 3.4.1 Limits of volatile organic compounds (VOC) and free formaldehyde in indoor water-based adhesive Determination item Limit Polyvinyl acetate adhesive Rubber adhesive Polyurethane adhesive 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 content of volatile organic compounds (VOC), benzene, methylbenzene + dimethylbenzene in indoor solvent-thinned adhesives in civil building engineering shall be determined, and the limit shall meet those specified in Table 3.4.2. Table 3.4.2 Limits of VOC, benzene, methylbenzene + dimethylbenzene + ethylbenzene in indoor solvent-thinned adhesives Item Limit Neoprene adhesive SBS adhesive Polyurethane adhesive Other adhesives Benzene /(g/kg) ≤5.0 Methylbenzene + dimethylbenzene /(g/kg) ≤200 ≤150 ≤150 ≤150 Volatile organic compounds /(g/L) ≤700 ≤650 ≤700 ≤700 3.4.3 The content of free toluene diisocyanate (TDI) in polyurethane adhesive shall be determined, which shall not be greater than 4g/kg according to the recommended minimum dilution of the product. The determination method should meet the requirements of Annex D in national standard GB 18583-2008 Indoor decorating and refurbishing materials - Limit of harmful substances of adhesives. 3.4.4 The determination method of the content of free formaldehyde and volatile organic compounds (VOC) in water-based adhesives should meet the requirements of Annex A and Annex F in GB 18583-2008 Indoor decorating and refurbishing materials - Limit of harmful substances of adhesives. 3.4.5 The determination method of the content of volatile organic compound (VOC), benzene and methylbenzene + dimethylbenzene in solvent-thinned adhesives should meet the requirements of Annex B. 3.5 Water-based treatment agent 3.5.1 For indoor water-based treatment agents such as water-based fire retardant (including fireproof coating), waterproof agent and preservative of civil building engineering, the content of free formaldehyde shall be determined and its limit shall meet those specified in Table 3.5.1. Table 3.5.1 Limit of free formaldehyde in indoor water-based treatment agent Determination item Limit Free formaldehyde/(mg/kg) ≤100 3.5.2 The determination method of content of free formaldehyde in water-based treatment agent should be carried out according to the method specified in current national standard GB 18582 Indoor decorating and refurbishing materials - Limit of harmful substances of interior architectural coatings. 3.6 Other materials 3.6.1 For flame retardants and concrete admixtures that can release ammonia used in civil building engineering, the content of released ammonia shall not be greater than 0.10%, and the determination method shall meet the requirements of the current national standard GB 18588 Limit of ammonia emitted from the concrete admixtures. 3.6.2 For concrete admixtures that can release formaldehyde, the content of free formaldehyde shall not be greater than 500mg/kg, and the determination method shall meet the requirements of the current national standard GB 18582 Indoor decorating and refurbishing materials - Limit of harmful substances of interior architectural coatings. 3.6.3 For bonded timber structure materials used in civil building engineering, the content of released formaldehyde shall not be greater than 0.12mg/m3, and the determination method shall meet the requirements of Annex A. 3.6.4 During the interior decoration of civil building engineering, the content of released formaldehyde of wall cloth, curtain, etc. shall not be greater than 0.12mg/m3, and the determination method shall meet the requirements of Annex A. 3.6.5 The formaldehyde content in indoor wallpaper of civil building engineering shall not be greater than 120mg/kg, and the determination method shall meet the requirements of current national standard GB 18585 Indoor decorating and refurbishing materials - Limit of harmful substances of wallpapers. 3.6.6 The determination method of volatile matter content in indoor PVC floor sheets of civil building engineering shall meet the requirements of current national standard GB 18586 Indoor decorating and refurbishing materials - Limit of harmful substances of polyvinyl chloride floor coverings, and the limits shall meet those specified in Table 3.6.6. Table 3.6.6 Limit of volatiles in polyvinyl chloride floor coverings Name Limit/(g/m2) Foamed floor coverings Glass fiber substrate ≤75 Other substrates ≤35 Non-foamed floor coverings Glass fiber substrate ≤40 Other substrates ≤10 3.6.7 The method for determining the release of total volatile organic compounds and content of released formaldehyde from indoor carpets and carpet underlay for civil building engineering shall meet the requirements of Annex A hereof, and the limits shall meet those specified in Table 3.6.7. Table 3.6.7 Release limits of hazardous substances in carpets and carpet underlay Name Item of hazardous substances Limit mg/(m2·h) Class A Class 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 requirement 4.1.1 Before the design of a new or expanded civil building engineering, an investigation shall be carried out on the radon concentration in the soil or the radon exhalation rate from soil surface in the urban area where the building engineering is located, and the corresponding investigation report shall be submitted. If not been measured, the radon concentration in the soil or the radon exhalation rate from soil surface shall be measured, and the corresponding detection report shall be provided. 4.1.2 For civil building engineering design, the usage of decoration materials shall be controlled according to the type and purpose of the building. 4.1.3 The indoor ventilation design of civil building engineering shall meet the relevant requirements of the national current standard GB 50352 General principles for design of civil buildings. For civil building engineering with central air conditioning, the fresh air volume shall meet the relevant requirements of the current national standard GB 50189 Design standard for energy efficiency of public buildings. 4.1.4 For civil building engineering with natural ventilation, the effective ventilation opening area of a single room shall not be less than 1/20 of floor area of the room. 4.2 Radon concentration detection and resistant measures on engineering sites 4.2.1 The engineering geological survey data of newly-built and expanded civil building engineering shall include the historical data of soil radon concentration or radon exhalation rate in the urban area where the engineering is located, and the average data of soil radon concentration or radon exhalation rate. . 4.2.2 For civil building engineering for which regional determination of radon concentration in soil or radon exhalation rate from soil surface has been carried out, when the average value of soil radon concentration is not more than 10,000Bq/m3 or the radon exhalation rate from soil surface is not more than 20mBq/(m2·s), and when there is no geological fracture structure at the construction site, the determination of soil radon concentration can no longer be carried out; otherwise, determination shall be carried out. 4.2.3 When the radon concentration in the soil of civil building engineering site is not more than 20,000Bq/m3 or the average value of radon exhalation rate from soil surface is not more than 50mBq/(m2·s), the anti-radon engineering measures may be omitted. 4.2.4 When the determination results of soil radon concentration in civil building engineering sites are more than 20,000Bq/m3 and less than 30,000Bq/m3, or the radon exhalation rate from oil surface is greater than 50mBq/(m2·s) and less than 100mBq/(m2·s), anti-cracking measures shall be taken on the ground floor of the building. 4.2.5 When the determination results of soil radon concentration in civil building engineering sites are greater than or equal to 30,000Bq/m3 and less than 50,000Bq/m3, or the radon exhalation rate from soil surface is greater than or equal to 100mBq/(m2 s) and less than 300mBq/ (m2 s), in addition to taking anti-cracking measures on the ground floor of the building, the foundation must also be treated in accordance with the first-class waterproofing requirements of the current national standard GB 50108 Technical code for waterproofing of underground work. 4.2.6 When the determination results of soil radon concentration in civil building engineering sites are greater than or equal to 50,000Bq/m3, or the radon exhalation rate is greater than or equal to 300mBq/(m2·s), comprehensive anti-radon building structural measures shall be taken. 4.2.7 When the radon concentration in the soil of Class I civil building engineering site is greater than or equal to 50,000Bq/m3, or the radon exhalation rate from soil surface is greater than or equal to 300mBq/(m2·s), the specific activities of radium-266, thorium-232 and potassium-40 in the soil of construction site shall be determined. Each site shall take a soil sample evenly for every 1,000m2 (areas less than 1,000m2 shall be counted as 1,000m2) for radioactivity detection. When the detection results show that the internal exposure index (IRa) is greater than 1.0 or the external exposure index (Ir) is greater than 1.3, the soil of the construction site shall not be used as the backfill. 4.2.8 The average radon concentration in soil shall be evaluated separately according to the radon concentration in basement space which is independent but connected. 4.2.9 The determination of radon concentration in soil and radon exhalation rate from soil surface in civil building engineering site shall be carried out in accordance with Annex C hereof. 4.3 Choice of materials 4.3.1 For indoor civil building engineering, building materials prohibited or restricted by the state shall not be used. The inorganic non-metallic decoration materials used in the indoor decoration of Class I civil building engineering must be Class A. 4.3.2 The inorganic non-metallic decoration materials used in the indoor decoration of Class II civil building engineering should be Class A. When Class A and Class B inorganic non-metallic decoration materials are used together, the amount of each material shall be determined using the following equations: (4.3.2-1) (4.3.2-2) where, fi——the mass percentage of the ith material in the total amount of material, %; IRai——the internal exposure index of the ith material; Iri——the external exposure index of the ith material. 4.3.3 The wood-based panel and decorated wood-based panel used in the indoor decoration of Class I civil building engineering must meet the requirements of Grade E1. 4.3.4 Grade E1 wood-based panel and decorated wood-based panel should be used for the indoor decoration of Class II civil building engineering, and when Grade E2 wood-based panel is used, the parts directly exposed to the air shall be coated and sealed. 4.3.5 The coatings, adhesives, water-based treatment agents and other materials used in the indoor decoration of civil building engineering shall meet the requirements hereof. 4.3.6 Polyvinyl alcohol water glass interior wall coatings, polyvinyl formal interior wall coatings and oil in water (O/W) multicolor interior wall coatings with nitrocellulose as main resin and xylene as main solvent shall not be used for indoor decoration of civil building engineering. 4.3.7 Polyvinyl alcohol adhesive shall not be used for indoor decoration of civil building engineering. 4.3.8 It is strictly forbidden to use asphalt, coal tar oil anti-corrosion and moisture-proof agents for wood floor covering and other wood materials used in indoor decoration of civil building engineering. 4.3.9 When the plastic floor is pasted in the indoor decoration of Class I civil building engineering, solvent-thinned adhesives shall not be used. 4.3.10 When pasting plastic floors in basements and rooms that are not directly ventilated with the outside in Class II civil building engineering, solvent-thinned adhesives should not be used. 4.3.11 Urea formaldehyde foam plastics shall not be used indoors as insulation, heat insulation and sound absorption materials in civil building engineering. 5 Engineering construction 5.1 General requirements 5.1.1 The development and construction organizations shall be in accordance with the design requirements and the relevant requirements hereof, the random admission re-inspection shall be conducted on building materials and decoration materials used. 5.1.2 When the admission inspection results of building materials and decoration materials do not meet the design requirements and the relevant requirements hereof, it is strictly prohibited to use them. 5.1.3 The construction organization shall carry out the construction according to the design requirements and the relevant requirements hereof, and shall not change the requirements of design documents without authorization. When changes are needed, design changes shall be carried out according to the specified procedures. 5.1.4 The construction organization shall prepare the "Special organization design and construction scheme for indoor environmental pollution control of building engineering" according to the design requirements and the relevant requirements hereof. This scheme shall be submitted to the supervision organization and the owner organization for approval together with the "Unit engineering construction organization design and construction scheme". 5.2 Admission inspection of materials 5.2.1 The inorganic nonmetallic building materials and their products such as concrete, ready-mixed mortar, prefabricated members and wall materials used in civil building engineering shall have their radioactive detection reports, and shall meet the design requirements and the requirements hereof. 5.2.2 The inorganic nonmetallic building materials and their products such as concrete, ready-mixed mortar, prefabricated members and wall materials used by each construction organization's engineering shall be re-inspected for radioactivity indicators according to different manufacturers and different varieties of materials. 5.2.3 The inorganic nonmetallic decoration materials used in indoor decoration of civil building engineering shall have radioactivity indicator detection reports of products, and shall meet design requirements and the requirements hereof. 5.2.4 When the usable area of natural granite stone or porcelain brick used for indoor decoration by each construction unit project is greater than 200m2, the re-inspection of radioactive indicators shall be conducted for different products and different batches of materials. 5.2.5 When wood-based panels and decorated wood-based panels used in indoor decoration of civil building engineering enter the site, there must be a detection report for content of free formaldehyde or released formaldehyde, which shall meet the design requirements and the requirements hereof. 5.2.6 When the area of wood-based panels or decorated wood-based panels used in indoor decoration by each construction organization's engineering is greater than 500m2, the random inspection and re-inspection shall be conducted on the content of free formaldehyde or released formaldehyde of different products and different batches of materials. 5.2.7 The water-based coatings, water-based adhesives, water-based treatment agents, solvent-thinned coatings and solvent-thinned adhesives used in indoor decoration of civil building engineering must have the detection reports of harmful substances for the same batch of products, and shall meet the design requirements and the requirements hereof. 5.2.8 When water-based coatings, water-based adhesives, water-based treatment agents, solvent-thinned coatings, solvent-thinned adhesives and other decoration materials are used in each construction organization's engineering, the re-inspection of pollutant content shall be conducted for materials with different product types from different manufacturers and different batches. 5.3 Requirements for construction 5.3.1 For civil building engineering with radon prevention measures, the construction technology of special parts such as deformation joints, construction joints, through-wall pipes (boxes), buried parts and reserved holes of its underground work shall meet the relevant requirements of the current national standard GB 50108 Technical code for waterproofing of underground works. 5.3.2 When non-local soil is used as the backfill for Class I civil building engineering, the specific activities of radium-266, thorium-232 and potassium-40 shall be determined. It may only be used when internal exposure index (IRa) is not greater than 1.0 and external exposure index (Ir) is not greater than 1.3. 5.3.3 It is strictly prohibited to use benzene, industrial benzene, petroleum benzene, heavy benzene and mixed benzene as diluent and solvent in indoor decoration of civil building engineering. 5.3.4 During indoor decoration of civil building engineering, the methylbenzene, dimethylbenzene and gasoline shall not be used for oil removal and old paint removal. 5.3.5 The coatings, adhesives, water-based treatment agents, diluents and solvents shall be sealed and stored in time after use, and the wastes shall be cleared out of the room in time. 5.3.6 It is strictly forbidden to clean the construction equipment with organic solvent in the room of civil building engineering. 5.3.7 In the indoor decoration of civil building engineering, when splicing the decorated wood-based panels, except the core board (Class E1), the cross section and the undecorated parts shall be sealed. 5.3.8 During the construction of wallpaper (covering), carpet, decorative panel, suspended ceiling, etc., attention shall be paid to moisture resistance, local wet areas shall not be covered. The condensate water drainage for air conditioning shall meet the relevant requirements of the current national standard GB 50019 Design code for heating ventilation and air conditioning. Foreword i 1 General provisions 2 Terms 3 Materials 3.1 Inorganic non-metallic main building materials and decoration materials 3.2 Wood-based panels and decorated wood-based panels 3.3 Coating 3.4 Adhesive 3.5 Water-based treatment agent 3.6 Other materials 4 Survey and design for building engineering 4.1 General requirement 4.2 Radon concentration detection and resistant measures on engineering sites 4.3 Choice of materials 5 Engineering construction 5.1 General requirements 5.2 Admission inspection of materials 5.3 Requirements for construction 6 Acceptance 6.1 General requirements 6.2 Number of randomly inspected room 6.3 On-site sampling methods 6.4 Detection methods 6.5 Detection result judgment and re-inspection for unqualified item 6.6 Format of original detection records and detection report 7 Quality assurance and quality control 7.1 Qualification 7.2 Personnel requirements 7.3 Instruments and equipment 7.4 Quality control of on-site sampling and detection 7.5 Laboratory quality control Annex A Determination of content of released formaldehyde in materials using environmental test chamber Annex B Determination of volatile organic compound (VOC) and benzenes in solvent-thinned coatings and adhesives B.1 Determination of volatile organic compound (VOC) in solvent-thinned coatings and adhesives B.2 Determination of the content of benzene, methyl benzene + dimethylbenzene + ethylbenzene in solvent-based coatings B.3 Determination of the content of benzene, methylbenzene + dimethylbenzene in solvent-thinned adhesives Annex C Determination of radon concentration in soil and radon exhalation rate from soil surface C.1 Determination of radon concentration in soil C.2 Determination of radon exhalation rate from soil surface Annex D Determination of radon concentration in indoor air by activated carbon box method D.1 Radon measurement with activated carbon box with diffusion barrier D.2 Radon measurement with activated carbon box without diffusion barrier D.3 Quality assurance Annex E Determination method for TVOC and benzene in indoor air Annex F Determination method for activated carbon of benzene in indoor air Annex G Format of original detection record and detection report G.1 Format of original detection record G.2 Format of detection report 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,结合广东省实际情况,制定本规程。 1.0.2 本规程适用于新建、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房间。 注:1.本规程所称室内环境污染系指由建筑材料和装修材料产生的室内环境污染。民用建筑工程交付使用后,非建筑装修材料产生的室内环境污染,不属于本规程控制范围。2.工业建筑或其他建筑中涉及室内空气污染物含量检测的可参照本规程执行。 1.0.3 本规程控制的室内环境污染物有氡(Rn-222)、甲醛、氨、苯和总挥发性有机化合物(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以及工业建筑中用于办公的场所。 1.0.5 民用建筑工程所选用的建筑主体材料和装饰装修材料必须符合本规程的规定。 1.0.6 民用建筑工程室内环境污染控制除应符合本规程规定外,尚应符合国家和行业现行的有关标准的规定。 2 术 语 2.0.1 民用建筑工程 civil building engineering 本规程所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。 2.0.2 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。 2.0.3 表面氡析出率 radon exhalation rate from soil surface 单位面积(m2)上、单位时间(s)内土壤或材料表面析出的氡的放射性活度(mBq),mBq/(m2·s)。 2.0.4 内照射指数 internal exposure index 内照射指数(IRa)是指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。 2.0.5 外照射指数 external exposure index 外照射指数(Ir)是指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其各限量而得的商之和。 (2.0.5) 式中:CRa、CTh、CK——分别为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,贝可/千克(Bq/kg)。 2.0.6 氡浓度 radon concentration 单位体积空气中氡的放射性活度。 2.0.7 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。 2.0.8 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。 2.0.9 水性涂料 water-based coatings 以水为稀释剂的涂料。 2.0.10 水性胶粘剂 water-based adhesives 以水为稀释剂的胶粘剂。 2.0.11 水性处理剂 water-based treatment agents 以水为稀释剂,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。 2.0.12 溶剂型涂料 solvent-thinned coatings 以有机溶剂为稀释剂的涂料。 2.0.13 溶剂型胶粘剂 solvent-thinned adhesives 以有机溶剂为稀释剂的胶粘剂。 2.0.14 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。 2.0.15 游离甲醛含量 content of free formaldehyde 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。 2.0.16 总挥发性有机化合物 total volatile organic compounds 在本规程规定条件下,所测得的空气中挥发物有机化合物的总量,简称TVOC。 2.0.17 挥发性有机化合物 volatile organic compound 在本规程规定条件下,所有测得的材料中挥发物有机化合物的总量,简称VOC。 2.0.18 换气率 infiltration rate 在1小时内由室外进入室内空气量与该室室内空气量之百分比,单位%。 3 材 料 3.1 无机非金属建筑主体材料和装饰装修材料 3.1.1 民用建筑工程所使用的砂、石、水泥、砖、砌块、粉煤灰以及混凝土、混凝土预制构件等无机非金属建筑材料,其放射性指标限量应符合表3.1.1的规定。 表3.1.1 无机非金属建筑材料放射性限量 测定项目 限量 内照射指数(IRa) ≤1.0 外照射指数(Ir) ≤1.0 3.1.2 民用建筑工程所使用的无机非金属装饰装修材料,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 无机非金属建筑装饰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(Ir) ≤1.3 ≤1.9 3.1.3 A类装修装饰材料的使用范围不受限制;B类材料不可用于Ⅰ类民用建筑的内饰面,但可用于Ⅱ类民用建筑物、工业建筑内饰面及其他一切建筑的外饰面。 3.1.4 民用建筑工程中使用的加气混凝土和空心率(孔洞率)大于25%的空心砖、空心砌块等建筑材料,其放射性限量应符合表3.1.4的规定。 表3.1.4 加气混凝土和空心率(孔洞率)大于25%的建筑材料放射性限量 测定项目 限量 表面氡析出率[mBq/(m2s)] ≤15 内照射指数(IRa) ≤1.0 外照射指数(Ir) ≤1.3 3.1.5 建筑主体材料和装饰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现行国家标准《建筑物表面氡析出率的活性炭测量方法》GB/T 16143的有关规定或符合《民用建筑工程室内空气质量污染控制规范》GB 50325-20l0中附录A的相关规定。 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类时,其限量应符合表3.2.2的规定。 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的有关规定。 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的有关规定。 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、细木工板宜采用于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,宜按本规程附录A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的有关规定。用干燥器法进行检测时,试样四边应用不含甲醛的铝胶带密封。 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 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和苯、甲苯+二甲苯+乙苯限量 涂料名称 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 — 其他溶济型涂料 ≤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的聚氨酯涂料中游离二异氰酸酯(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》GB 18582的有关规定。 3.3.5 溶剂型涂料中VOC和苯、甲苯+二甲苯+乙苯含量测定方法,宜按本规程附录B进行。 3.4 胶粘剂 3.4.1 民用建筑工程室内用水性胶粘剂,应测定其挥发性有机化合物(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挥发性有机化合物(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,应测定其挥发性有机化合物(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,并按产品推荐的最小稀释量计算不应大于49/kg,测定方法宜符合国家标准《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,宜符合本规程附录B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程附录A的规定。 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程附录A的规定。 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程附录A的规定,其限量应符合表3.6.7的规定。 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,应符合国家现行标准《民用建筑设计通则》GB 50352的有关规定。对于采用集中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》CB 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l/20。 4.2 工程地点土壤中氡浓度检测及防氡相关措施 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20mBq/(m2·s)时,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20000 Bq/m3或土壤表面氡析出率测定结果平均值不大于50mBq/(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20000 Bq/m3且小于30000 Bq/m3,或土壤表面氡析出率大于50mBq/(m2·s)且少于100 mBq/(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30000 Bq/m3且小于50000 Bq/m3,或土壤表面氡析出率大于或等于100 mBq/(m2·s)且少于300 mBq/(m2·s)时,除采取建筑物内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测定结果大于或等于50000 Bq/m3,或土壤表面氡析出率大于或等于300 mBq/(m2·s)时,应采取综合建筑构造防氡措施。 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时,或土壤表面氡析出率大于或等于300mBq/(m2·s)时,应进行建筑场地土壤中的镭-266、钍-232、钾-40的比活度的测定。每个场地应按每1000 m2(不足1000 m2的按1000 m2计)均匀取一个土样,做放射性的检验。当检验结果表明内照射指数(IRa)大于1.O或外照射指数(Ir)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 土壤氡平均浓度应按独立贯通的地下室空间的氡浓度进行单独评价。 4.2.9 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按本规程附录C进行。 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。 Ⅰ类民用建筑工程室内装修采用的无机非金属装饰装修材料必须是A类。 4.3.2 Ⅱ类民用建筑工程宜采用A类无机非金属装饰装修材料。当A类和B类无机非金属装饰装修材料混合使用时,应按下式计算,确定每种材料的使用量: (4.3.2-1) (4.3.2-2) 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; Iri——第i种材料的外照射指数。 4.3.3 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。 4.3.4 Ⅱ类民用建筑工程室内装修宜采用E1级人造木板及饰面人造木板;当采用E2级人造板材时,直接暴露于空气中的部位应进行表面涂覆密封处理。 4.3.5 民用建筑工程的室内装修,所采用的涂料、胶粘剂、水性处理剂及其他材料,应符合本规程的规定。 4.3.6 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。 4.3.7 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。 4.3.8 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。 4.3.9 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。 4.3.10 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。 4.3.11 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程的有关规定,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结果不符合设计要求及本规程的有关规定时,严禁使用。 5.1.3 施工单位应按设计要求及本规程的有关规定进行施工,不得擅自更改设计文件要求。当需要变更时,应按规定程序进行设计变更。 5.1.4 施工单位应按设计要求及本规程的有关规定编写“建筑工程室内环境污染控制专项组织设计和施工方案”。该方案应与“单位工程施工组织设计和施工方案”一并报监理单位和业主单位审批。 5.2 材料进场检验 5.2.1 民用建筑工程中所采用的混凝土、预拌砂浆和预制构件、墙体材料等无机非金属建筑材料及其制品应有其放射性检测报告,并应符合设计要求和本规程的规定。 5.2.2 每个建筑单位工程所采用的混凝土、预拌砂浆和预制构件、墙体材料等无机非金属建筑材料及其制品应按不同的生产厂家、不同品种的材料分别进行放射性指标的复验。 5.2.3 民用建筑工程室内装修中采用无机非金属装修材料应有产品的放射性指标检测报告,并应符合设计要求和本规程的规定。 5.2.4 每个建筑单位工程中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复验。 5.2.5 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进场时,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程的规定。 5.2.6 每个建筑单位工程中室内装修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。 5.2.7 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、溶剂型涂料、溶剂型胶粘剂必须有同批次产品的有害物质含量检测报告,并应符合设计要求和本规程的规定。 5.2.8 每个建筑单位工程中采用水性涂料、水性胶粘剂、水性处理剂、溶剂型涂料、溶剂型胶粘剂等装修材料时,应对不同生产厂家、不同产品种类、不同批次材料分别进行污染物含量的复验。 5.3 施工要求 5.3.1 采取防氡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-266、钍-232、钾-40的比活度的测定。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时,不应使用甲苯、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,废料应及时清出室内。 5.3.6 严禁在民用建筑工程室内用有机溶剂清洗施工用具。 5.3.7 民用建筑工程室内装修中,进行饰面人造木板拼接施工时,除芯板为E1类外,应对其断面及无饰面部位进行密封处理。 5.3.8 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 6.1 一般规定 6.1.1 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。 6.1.2 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,必要时,工程地点土壤天然放射性核素镭-226、钍-232、钾-40比活度检测报告; 2 采用异地土作为回填土时,应检查该回填土(异地回填土)的内照射指数和外照射指数检测报告; 3 涉及室内新风量的设计、施工文件,以及新风量的检测报告; 4 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; 5 建筑材料和装修材料的污染物含量检测报告、材料进场检验记录、复验报告; 6 与室内环境污染控制有关的隐蔽工程验收记录、施工记录; 7 工程室内环境污染物浓度检测报告。 6.1.3 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程的有关规定。 6.1.4 民用建筑工程验收时,必须进行室内环境污染物浓度检测。检测结果应符合表6.1.4的规定。 表6.1.4 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 ≤0.10 苯(mg/m3) ≤0.09 ≤0.09 氨(mg/m3) ≤0.20 ≤0.20 TVOC(mg/m3) ≤0.50 ≤0.60 注:l 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,采用修约值比较法。 6.1.5 室内环境质量验收不合格的民用建筑工程,严禁投入使用。 |
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DBJ 15-93-2013, DBJ/T 15-93-2013, DBJT 15-93-2013, DBJ15-93-2013, DBJ 15, DBJ15, DBJ/T15-93-2013, DBJ/T 15, DBJ/T15, DBJT15-93-2013, DBJT 15, DBJT15 |