The 100-meter sprint is probably the most exciting project on track and field. On a short 100m track, athletes must take each step as the final sprint and strive hard.
In a “race†that can be faced with various problems at home, it is necessary to learn from the “sprint spirit†in the 100-meter sprint—not only to regard it as the final sprint of the entire renovation process, but also to In the inspection and acceptance process, every project will remain "sprinting" and go all out, treat it seriously, and solve problems and omissions before staying, so as to leave no regrets for a good home life in the future.
In the post-completion project quality acceptance process, the acceptance of acceptance can be roughly divided into the following items.
When conducting the Sheung Shui test, the waterway project should open the faucets in the kitchen and bathroom one by one, and observe the amount of water to see if the water is unimpeded. If there is a hot water tap, also check if the hot water can flow out normally.
The launching test is more important than the Sheung Shui test. During the test, it is necessary to fill the tub, basin, and vegetable sink with water, and then remove the stopper to allow the water to produce the greatest possible water pressure on the pipe. If you find leaking water in the corners of the sewer pipes, etc., even if it is extremely slight, you should immediately handle them until the problem is completely resolved. Do not leave any hidden dangers.
In addition, all taps should be opened at the same time so that the maximum amount of water will flow into the underground water pipes. In this way, if the drain pipe is not open, the problem is more easily exposed. It is very difficult to find this problem by opening the taps for testing.
When conducting the water pressure test, for a high-rise apartment type, eight pressures should be entered. Within one hour, the pressure reduction should not exceed 0.05 MPa. For the bottom-floor apartment, you can enter 6 pressures.
When the circuit works to check the circuit, all electrical equipment must be turned on and the test circuit must be able to withstand this maximum load.
The test of the socket is also very important. It is not the compound “left zero, right fire, and ground†connection used to test the socket of the instrument. When the wiring is normal, press the leakage protection test button on the instrument to cause a momentary human short circuit, and then observe the distribution box. If there is a tripping phenomenon, it is qualified.
We use professional instruments to test weak currents such as network cables and telephone lines, and whether strong power such as sockets is unobstructed. The distance between strong and weak electricity should not exceed 500 mm. The distance between strong electricity and gas pipelines and gas equipment should be greater than 150 mm.
Test the lighting switch to see if the switch controls freely and the bulb has no damage.
Painted brickwork wall paints and top paints are generally accepted through surface observations. Stand facing the wall 1.5 meters from the wall, the surface should be uniform color, no burr, no flow marks, no obvious brush mark. The surface of the wall paint should form a gas film, and there should be no exposed bottom.
If there is uneven color on the wall, this may be caused by uneven base treatment, or it may be caused by the incomplete brushing of the wall paint. When distinguishing, you can press your hand on the wall with a certain amount of force and stroke it again. If you feel a sense of concavity and convexity, it means that the base surface of the wall is not smooth; if the touch is smooth, it is a problem with the wall paint.
Measure the wall surface with a ruler. The flatness should be within 2 mm. The verticality of the wall can be measured with a wire drop. The yin angle in the room should reach 90 degrees.
No matter whether it is a floor tile or a wall tile, there can be no empty drum phenomenon, otherwise it will easily fall off in the future. Tile gaps should be uniform, straight, and beautiful appearance. In addition, the height difference between the seams of the tiles cannot be more than 0.5 mm. For the bathroom floor tile, it is also necessary to test its slope, splash water on the floor of the bathroom, the water should be automatically collected to the floor drain, self-discharge, the ground should not leave behind water.
After the completion of the home decoration, the air quality acceptance article not only requires the acceptance of the project, but also the acceptance of air quality is very important. The experts gave answers to several air detection questions that were of concern to consumers.
Question 1: What items are generally tested for air quality testing?
A: In the air monitoring, three items will be detected, namely formaldehyde, benzene and VOC. If consumers have other special requirements, they can also submit to the testing department.
Question 2: When should air quality testing be better?
A: Generally speaking, it is better to carry out air quality tests when furniture has not been moved in for more than seven days after the renovation. If the furniture has entered the field, it can also be tested, but if there is a VOC or benzene failure, it is difficult to determine whether it is a decoration problem or a furniture problem.
In addition, it is recommended that consumers test each room once in the case of a one-hour and 12-hour closure, and the results obtained will be more scientific. The higher the concentration of pollution, the smaller the difference between these two results.
Question 3: Does it mean that there must be a source of pollution in the room as long as the test result is not satisfactory?
A: Not necessarily, the superposition of pollutants may also cause unqualified tests.
For example, in high-temperature, high-humidity climates, or when consumers do not regularly ventilate their windows, contaminants cannot spread in time. This may cause a certain amount of pollution to be superimposed, resulting in unacceptable air quality testing, but this Excess values ​​under these conditions are generally near the standard threshold. If the detected value exceeds the standard two or three times, or even more, it means there must be a source of pollution in the room.
Question 4: For different pollution levels, the corresponding governance method is the same?
A: Different levels of governance are also different.
For the situation where the value is close to the national standard threshold, consumers can use the method of increasing the amount of green plants, ventilating the windows, and placing activated carbon to remove the pollution. If the value is too high, it is recommended to purchase an air purifier for processing.
Chemical products, such as formaldehyde trapping agents, are generally not recommended for consumers because the products contain more chlorine-containing solutions and some intermediate products and by-products are produced during chemical reactions. There is also a method of photocatalyst that reacts with ultraviolet ray to excite the material and has a strong redox effect, enabling formaldehyde, benzene, ammonia, etc. to be oxidized and decomposed into harmless water, oxygen, carbon dioxide, etc., to achieve initial treatment. purpose.
Question 5: What impact will furniture have on the air quality after renovation?
A: If consumers do air quality testing before the furniture enters the market, they find that the amount of formaldehyde released has reached the critical value of the national standard. Therefore, when purchasing furniture, it is necessary to choose a very environmentally friendly product. When consumers purchase furniture, it is best to specify on the contract that the words “furniture cannot contaminate the indoor environmentâ€. If the originally qualified air quality fails after the furniture enters the site, it means that the pollution has a direct relationship with the home. In this way, the contractual agreement will be beneficial to consumers at the time of the dispute.
Question 6: Can you test furniture?
A: Nowadays, there are also furniture inspections on the market that can detect harmful substances including formaldehyde and other heavy metals. However, current furniture inspections are usually destructive and cause damage and damage to furniture. In addition, this detection may also have limitations, because a set of furniture substrates will not be completely the same, the panel, top plate, back plate may use different substrates, each substrate is to detect it is not too realistic.
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