Customer notice before indoor air testing
2019-06-05 15:06:37
â– Customer notice before indoor air testing!
â– 1. Choice of environmental standards:
1 "Code for indoor environmental pollution control of civil construction projects" GB50325-2001 (2006 version) is issued by the Ministry of Construction, is a national mandatory standard, must be enforced; "Indoor Air Quality Standards" GB/T18883-2002 is the Ministry of Health Jointly issued with the State Environmental Protection Administration, it is the national recommended standard and is a non-mandatory law and regulation. It is only mandatory if the parties to the contract agree to meet the standards in the agreement.
2 Generally, the completion and acceptance of the gross embryo room before the decoration should be tested according to the “Code for Indoor Environmental Pollution Control of Civil Buildings†GB50325-2001 (2006 version); after the general furniture is in place or after a period of stay (that is, all the buildings after renovation) ), indoor air quality testing should be carried out in the "Indoor Air Quality Standards" GB/T18883-2002.
â– 2. Detecting the optimum time:
1 "Code for indoor environmental pollution control of civil construction projects" GB50325-2001 (2006 version) stipulates: Civil construction projects should be carried out at least seven days after the completion of the renovation project and before the project is used.
2 It is recommended that the personal decoration family should be tested one month after the completion of the renovation project, and all the furniture should be fully in place after one week. During this period, sufficient ventilation should be ensured to facilitate the emission of harmful substances, so that the test results are closer to the actual use. The situation.
â– 3. Closing the optimum time:
1 "Code for indoor environmental pollution control of civil construction projects" GB50325-2001 (2006 edition) stipulates that for civil construction projects using natural ventilation, the sampling shall be carried out 1 hour after the closing of the external doors and windows; â–² when the dispute arises, the external doors and windows are closed The time is based on 1h (hours).
2 For the decoration family who are preparing to stay or have already stayed, according to the Indoor Air Quality Standard GB/T18883-2002, the door and window closing time is 12 hours (ie: the closing time of people sleeping at night is close to 12 hours). ), so the sampling test results after 12 hours of door and window closing will be closer to reality.
â– 4. Determination of the number of sampling points:
1 "Code for indoor environmental pollution control of civil construction projects" GB50325-2001 (2006 version) stipulates: when the room use area is < 50 square meters, the number of detection points: 1; when the room use area is ≥ 50 square meters and < 100 square meters, the number of detection points: 2 When the room usage area is ≥ 100 square meters and < 500 square meters, the number of detection points: not less than three.
2 According to the actual situation of Nantong, the room area of ​​a typical individual residence is < 50 square meters, so only one inspection point is required for one room; when the living room area is < 50 square meters, only one inspection point is required; for example, living room area > 50 When squared, it should be determined according to the actual situation.
3 â— Specific to 1 set of houses, general kitchens and bathrooms do not have inspection points. It is only recommended to open the kitchen and bathroom doors when testing, and count their area into the room or living room area connected to them; â— General two rooms and one living room There are 3 inspection points in the housing, that is, one inspection point in each of the two rooms and the living room; â— 4 inspection points in the three-bedroom and one-bedroom houses, that is, one inspection point in each of the three rooms and the living room; three rooms and two halls, Other types of housing such as the building in the middle of the building should be determined according to the actual situation.
â– 5. Test items:
1 According to the "Code for Indoor Environmental Pollution Control of Civil Buildings" GB50325-2001 (2006 version), for the acceptance of the completion of the gross embryo room, five items should be tested: formaldehyde, benzene, total volatile organic compounds TVOC, ammonia, antimony.
2 According to the "Indoor Air Quality Standards" GB/T18883-2002 standard, combined with the actual situation in Jiangsu, it is recommended that only six items of individual housing after renovation should be tested: formaldehyde, benzene, total volatile organic compounds TVOC, toluene, xylene, ammonia If the six indicators are tested, all vulnerable groups, including children, pregnant women, and the elderly, can live with confidence; there are less than six (such as three) prices in the price list, just to reduce detection. Total price.
â– 6. Total volatile organic compounds TVOC include: benzene, toluene, p-xylene, m-xylene, o-xylene, styrene, ethylbenzene, butyl acetate, undecane, a total of nine substances; total CMA test report The concentration of volatile organic compound TVOC is the sum of the concentrations of the above nine substances.
Another: floor testing (including various composite floor testing):
1. Test item: formaldehyde;
2. Detection price: 1 time 800-1000 yuan;
2. Test standard: tested according to GB/T17657-1999 standard test method for physical and chemical properties of wood-based panels and veneered panels;
3. Need to provide the floor area size: a whole piece of floor or a zero board with a whole floor size;
4. Results time: You can tell the results about 6 days after getting the floor sample, and you can get the report in 8-9 days;
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