Master indoor pollution level and indoor formaldeh

2022-07-22
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The decorated house always has a pungent smell. Even if various formaldehyde removal methods are used, it still feels delicious. Judging indoor pollution level by nose always feels unreliable, so how do we know the indoor formaldehyde concentration? We can use some formaldehyde detection methods to determine, such as formaldehyde detector. Today, Xiaobian will introduce three indoor formaldehyde detection methods to let you master the pollution level of your home

the decorated house always has a pungent smell. Even if various formaldehyde removal methods are used, it still feels delicious. Judging indoor pollution level by nose always feels unreliable, so how do we know the indoor formaldehyde concentration? We can use some formaldehyde detection methods to determine, such as formaldehyde detector. Today, Xiaobian will introduce three indoor formaldehyde detection methods to let you master the pollution level of your home

indoor formaldehyde detection method 1. Formaldehyde self-test box

formaldehyde self-test box is the lowest cost, the most homely, but the value deviation is large. Generally, you can buy formaldehyde self-test boxes in home supermarkets or online, with prices ranging from more than a dozen to dozens of pieces

formaldehyde self-test box is generally composed of brown bottle diluent, transparent bottle developer and a reaction box containing powder. Before the test, close the doors and windows of the room to be tested for an hour, pour the diluent into the reaction box to fully dissolve the reactant, place the reaction box indoors at a height of 80 to 150 cm from the ground, expose it for 30 minutes, pour the developer, screw down the bottle cap, shake it well, and open it after standing for 10 minutes, and compare the color scale card of the self-test box. Yellow basically contains no formaldehyde; Yellowish green is not too yellow; Yellowish green to green, not serious exceeding the standard; Green exceeds the standard a little, and blue exceeds the standard

although this method is simple, the accuracy cannot be guaranteed, so we can only do a general test. Insiders said that the formaldehyde self-test box is not within the national indoor air detection specification, but just a transitional means. The longer the self-test box is placed, the deeper the color of the detection reagent is. Therefore, the detection result of the formaldehyde self-test box is not 100% accurate

indoor formaldehyde detection method 2. Household formaldehyde detector

jc-7 is a brand-new indoor household formaldehyde concentration detection instrument. Its volume is generally the size of an insulated water cup. The front is the display screen, the back is the air inlet and battery slot, the top is the formaldehyde meter switch, long press for three seconds to start, and the side is the temperature unit button and alarm switch, which can change the temperature unit

the household formaldehyde detector adopts the latest imported electrochemical sensor and high-precision operation amplification chip to directly convert the formaldehyde concentration signal in the air into electrical signals in real time and continuously. After data processing by microcomputer, the measurement results are displayed in LCD digital mode. Put the formaldehyde meter in the testing environment, or put it in the same closed space with the paint and other testing objects, and wait for 5-10 minutes, and the value of the formaldehyde meter display will show the real-time formaldehyde concentration, which will change constantly

when the value on the formaldehyde meter is lower than 0.10mg/m³ When, there will be a smiling face above the number on the display screen; More than 0.10mg/m³, Smiling faces will turn into crying faces, and there will be an alarm sound and a red light flashing at the same time; The crying face will turn into a skeleton sign when it exceeds the standard seriously, and we can see the indoor formaldehyde pollution level very intuitively

compared with the thousands of detection costs of formaldehyde detection institutions, the household formaldehyde instrument with a few hundred yuan can fully meet the needs of ordinary families, and its operation is very simple, and its small size is also easy to place

indoor formaldehyde detection method 3. Formaldehyde detection organization

hiring formaldehyde detection organization to do indoor environment detection is obviously more suitable for enterprises, units and other large institutions. It is best to entrust a professional organization to do an indoor environment detection before a new house is decorated and you want to move in

at present, there are many institutions engaged in third-party testing, and the testing qualifications, testing instruments and testing methods are different. Few owners have relevant knowledge. How can we choose a good third-party testing organization

the testing institution must pass the metrological certification (CMA) of the quality and technical supervision department at or above the provincial level before issuing a legally effective report. Before commissioning the testing, the testing institution can be required to issue the metrological certification (CMA) certificate and the inspection capacity table

the detection method of the detection institution should comply with the national standard. The national standard gb/t18883-2002 does not recognize the detection method of formaldehyde, benzene and TVOC with direct reading

it should also be noted that some institutions without testing qualification will use “ Free testing ” To deceive consumers, its data feasibility is worth considering, and some testing institutions that do both testing and governance suggest careful choice, because the state stipulates that testing institutions should not engage in related businesses that affect the test results

no matter what kind of detection method is selected, it is to know the formaldehyde pollution level at home. Only by mastering the indoor pollution level, can the corresponding treatment methods be formulated. The above indoor formaldehyde detection methods are briefly introduced here. I hope they can help you. Please look forward to more information

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