KR100782318B1 - Test chamber for emitting pollutants with air supply pipe - Google Patents

Abstract

The present invention relates to a pollutant emission test chamber equipped with an air supply pipe. The present invention includes a lid 210 having an air supply channel 213 for supplying air into the test chamber and an air discharge channel 217 for discharging the air inside the test chamber to the outside; An air supply pipe 215 communicating vertically downwardly to one end of the air supply channel 213 to supply air into the test chamber; And a main body portion 230 having at least one end opened in a shape of a tube, the open end being closed to cover the lid portion 210, and the separation distance between the air supply pipe 215 and the sample 260 and air. By controlling the flow rate of air supplied from the supply pipe 215 provides a pollutant emission test chamber that can control the flow area of the air flow on the surface of the sample 260.

Test chamber, pollutant, building materials, air supply pipe

Description

TEST CHAMBER FOR EMITTING POLLUTANTS WITH AIR SUPPLY PIPE}

1 is a cross-sectional view of a conventional pollutant emission test chamber.

Figure 2 is a cross-sectional view of the pollutant discharge test chamber equipped with an air supply tube according to a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of the pollutant discharge test chamber equipped with an ondol device according to the present invention.

Figure 4 is a graph showing the emission concentration of the pollutants over time using the pollutant emission test chamber and the conventional test chamber according to the present invention.

<Explanation of symbols for the main parts of the drawings>

210: lid 213: air supply channel

215: air supply pipe 217: air discharge channel

220: fixing ring 230: main body

231: top border 233: bottom border

240: sealing member 250: bottom plate

The present invention relates to a pollutant emission test chamber, and more particularly to a pollutant emission test chamber for measuring the concentration of the pollutant released from the building materials.

In recent years, indoor air quality has been deteriorated due to the use of building materials such as insulation, while building sealing has been emphasized in order to save energy and increase energy efficiency in buildings.

In addition, the increase in the use of various interior goods due to the economic level is increasing unexpected pollutants.

The pollutants emitted from such building materials are mainly organic compounds or formaldehyde, and these pollutants contain carcinogenic substances, which is a big problem.

Therefore, by measuring the amount of pollutants emitted from building materials and the like and dividing the grade of building materials according to the amount of pollutants emitted from building materials, the amount of pollutants contained in building materials is indirectly regulated.

Regarding data on pollutant emissions, ISO regulations require 3-day and 28-day data that measure the amount of pollutant released from building materials and the amount of pollutant released over a long period of time. The 7-day data is required considering that it takes too long to measure. The 28-day data required by ISO is when the amount of pollutant released from the sample becomes nearly constant.

In order to measure the emission amount of pollutants generated in the building materials, first, the pollutants should be released from the sample. FIG. 1 is a cross-sectional view of a conventional pollutant emission test chamber.

As shown in FIG. 1, the conventional pollutant release test chamber is composed of a lid 110 and a body 130 of the test chamber.

The air outlet channel 111 is formed in the lid 110, and the air supply channel 131 is formed at the lower end of the side surface of the main body 130.

A sealing member 120 such as Teflon may be further installed between the lid 110 and the main body 130 to prevent air from entering and exiting from the outside. At this time, the lid 110, the sealing member 120 and the main body 130 is fastened by the fastening means 121.

Air supplied from an external air supply device (not shown) is supplied to the inside of the main body 130 through the air supply channel 131 after passing through the air supply nozzle 133. One end of the air supply channel 131 is in communication with the air supply pipe 135 installed in the main body 130.

On the other hand, the air supply pipe 135 is formed with a vent hole 136 facing the bottom surface, the air flows through the air supply pipe 135 through the vent hole 136 to the inside of the main body 130 Get out. Since the vent hole 136 faces the bottom surface of the main body 130, most of the air exiting the vent hole 136 collides with the bottom surface of the main body 130 and then opens the upper end of the main body 130. To flow.

The air flowing toward the upper end of the main body 130 passes through the holder plate 137 spaced apart from the upper end of the air supply pipe 135. The holder plate 137 is provided with a plurality of holes 138 through which air can flow, and air flows to the upper portion of the main body 130 via the holes 138, and in this process, the holder (holder) It passes through the sample mounted on the (139).

At this time, in order to measure the concentration of contaminants emitted from the surface of the sample, all of the back surface or side surface except the surface of the sample is sealed with the same as aluminum foil. Thus, only a portion of the flowing air carries contaminants released from the sample via the surface of the sample.

In this way, both the air passing through the sample and the air not passing through the sample are discharged to the outside through the air discharge channel 111, and the discharged air passes through the air discharge nozzle 113 to measure the pollutant concentration (not shown). Go to).

However, according to the prior art configured as described above, there are the following problems.

That is, in the conventional test chamber, since the air supply channel is formed at the lower side of the side of the test chamber, air is supplied from below the sample, and since the sample is erected longitudinally in the holder, only a part of the supplied air passes through the surface of the sample. .

Therefore, the amount of air that can move the pollutants released from the sample is small, so the rate of pollutants released from the sample is slowed, so it takes a long time to measure the concentration of the pollutants. In this situation, Korea has no choice but to request data for 7 days. Therefore, a problem arises in that it is necessary to submit data that do not conform to the international ISO standard.

In addition, the conventional test chamber has a capacity of 20 to 1000 liters of the test chamber used in the small chamber method, which is inconvenient in use and installation, and when installed in a thermostat, the number of test chambers that can be installed is limited. It takes a long time to measure the concentration of pollutants contained in the.

In addition, the conventional test chamber has a problem that it is impossible to use in the field because the bottom surface of the main body is closed and the sample can only be sampled and tested.

In addition, considering that Korea is in the ondol culture area, when using a conventional test chamber that does not reflect Korea's living environment, there is a problem that the concentration of pollutants contained in the sample should be measured under different conditions from real life. do.

The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to release the contaminants from the sample quickly by making most of the supplied air via the surface of the sample, and thus It is to provide a pollutant emission test chamber that can obtain the data required by ISO regulations at low cost.

Another object of the present invention is to reduce the concentration of contaminants emitted from a sample in a short time by installing much more test chambers than before, when the test chamber is installed in a thermostat by miniaturizing the test chamber to 1 liter. To provide a possible pollutant release test chamber.

Still another object of the present invention is to use a field test chamber in which a test chamber is directly installed in the field by using a tubular test chamber having an open bottom surface, and a field-usable pollutant emission test capable of measuring the concentration of pollutants emitted from a sample. In providing a chamber.

Another object of the present invention, by measuring the concentration of the pollutants emitted from the sample in the state in which the ondol device is installed on the bottom plate of the base plate is placed, the pollutants that can measure the concentration of pollutants reflecting the residential environment of Korea To provide a release test chamber.

In order to achieve the above object, the present invention provides an air supply channel for supplying air into the test chamber and the lid provided with an air discharge channel for discharging the air in the test chamber to the outside; An air supply pipe communicating with one end of the air supply channel vertically and for supplying air into the test chamber; And at least one end of the tubular shape, the main body being installed so that the open end is closed with the lid part, and the air is controlled by the separation distance between the air supply pipe and the sample and the flow rate of air supplied from the air supply pipe. A contaminant emission test chamber is provided, characterized in that the flow area flowing to the sample surface is controlled.

With this arrangement, most of the supplied air passes through the surface of the sample and the area of air flows on the surface of the sample is increased to release more contaminants from the sample in a shorter time.

Here, the lid portion is preferably a glass member, and when the lid portion of the glass member is employed, the top of the lid portion may be further provided with a fixing ring for fixing the lid portion to fix the lid portion.

The air discharge channel is preferably formed in the center of the lid portion, the air supply channel is formed symmetrically with respect to the air discharge channel, more preferably one air discharge channel, two to four air supply channels Is formed.

The main body portion may further include an upper border portion and a lower border portion extending from both ends thereof, further comprising a sealing member on a contact surface of the lid portion and the upper edge portion, and the lid portion and the upper edge portion are preferably fastened by a fastening means. Do.

In addition, preferably, the lower end of the lower border portion in close contact with the sample is further provided with an air shielding member for preventing the entry of air.

In addition, the bottom plate is preferably secured by the edge portion and the fastening means is fastened to the bottom plate that can be placed on the upper surface and the bottom plate may be further provided with an ondol device for heating the bottom plate.

At this time, the ondol device is made of an aluminum block and a heat-resistant member surrounding the aluminum block or mantle heater, it is preferable to maintain the temperature of the ondol device 40 ~ 70 ℃.

According to this, it is possible to measure the concentration of pollutants emitted from the sample in a state reflecting the residential environment of Korea can obtain a more accurate measurement value.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of a pollutant emission test chamber equipped with an air supply pipe according to a preferred embodiment of the present invention. In FIG. 2, both ends of the main body are opened, but only one end of the main body that contacts the lid may be opened.

Hereinafter, a test chamber employing a main body portion with both ends open will be described.

As shown in FIG. 2, the pollutant emission test chamber according to the present invention includes a lid 210, a main body 230, and a bottom plate 250.

The lid 210 is provided with an air supply channel 213 for supplying air into the test chamber and an air discharge channel 217 for discharging air inside the test chamber to the outside. An air supply nozzle 211 communicates with one end of the air supply channel 213, and an air discharge nozzle 219 communicates with one end of the air discharge channel 213.

The other end of the air supply channel 213 communicates with an air supply pipe 215 for supplying air introduced through the air supply channel 213 into the test chamber. At this time, the air introduced into the body 230 through the air supply pipe 215 is discharged along with the contaminants while passing through the sample surface. The larger the surface area of the air flows, the faster the contaminants on the sample surface. Can be released.

At this time, the flow area in which air flows on the sample surface is controlled by the separation distance between the air supply pipe 215 and the sample 260 and the flow rate control supplied from the air supply pipe 215.

Therefore, in order to maximize the area in which air flows on the sample surface, it is important to control the distance between the air supply pipe 215 and the sample and the flow rate of the air supplied from the air supply pipe 215.

First, in relation to the separation distance between the air supply pipe 215 and the sample, the air flows actively in the test chamber as the air supply pipe 215 is farther away from the sample 260, but the air supply pipe 215 causes the sample ( If too far from the 260, the amount of air immediately discharged without passing through the surface of the sample 260 is increased. Therefore, in this case, the amount of air passing through the surface of the sample 260 is reduced, and thus the flow area of air at the surface of the sample is reduced.

On the other hand, if the air supply pipe 215 is installed near the sample 260 to reduce the distance from the sample 260, the amount of air immediately discharged without passing through the surface of the sample 260 is reduced. However, when the separation distance between the air supply pipe 215 and the sample 260 is made too short, air is locally supplied to the sample surface, making it difficult to flow widely on the sample surface.

Therefore, in order to maximize the flow area in which the supplied air flows on the sample surface, the air supply pipe 215 should be properly spaced from the sample surface.
At this time, to adjust the separation distance between the air supply pipe 215 and the sample 260 to form a male thread on the outer circumferential surface of the air supply pipe 215 coupled to the air supply channel 213 and the portion of the air supply pipe 215 is fastened An internal thread is formed on the inner circumferential surface of the air supply channel 213. Therefore, when the separation distance between the air supply pipe 215 and the sample 260 is small, the air supply pipe 215 is screwed to be inserted near the lower end of the female screw portion of the air supply channel 213 (see Fig. 2), the air supply pipe When the separation distance between the 215 and the sample 260 is increased, the air supply pipe 215 is screwed to be inserted into the upper end of the female screw portion of the air supply channel 213 (see FIG. 3).
Here, the method of adjusting the separation distance between the air supply pipe 215 and the sample 260 is not limited to the above, and may be adopted without particular limitation as long as it is a method commonly known in the art.
For example, without forming a screw portion in the air supply channel 213 and the air supply pipe 215, the air supply pipe 215 is fastened into the air supply channel 213 by inserting the coupling method in such a way that the air supply between ( The distance between the air supply pipe 215 and the sample 260 may be adjusted by adjusting the insertion depth of the 215.
As another example, an air supply pipe 213 may be prepared by preparing an air supply pipe having various sizes (lengths), and having an air supply pipe having a size (length) corresponding to a required separation distance between the air supply pipe 215 and the sample 260. It is also possible to adjust the separation distance between the air supply pipe 215 and the sample 260 by connecting to.

In addition, looking at the relationship between the flow rate of the air supplied through the air supply pipe and the flow area of the air flow on the sample surface, when the length of the air supply pipe 215 is the same, the more air is supplied, the air flows on the sample surface The area to be made becomes wider.

At this time, the flow rate of the air is adjusted to maximize the area that the air flows on the sample surface, the air flow rate control is to adjust the air supplied from the air supply device (not shown) through a control means such as a control valve, Those skilled in the art to which the invention applies will readily understand the flow rate control of the air supplied from the air supply.

On the other hand, at least one air discharge channel 217 may be formed, but in order to minimize the adsorption of contaminants on the inner wall of the air discharge channel 217 in the process of being discharged to the outside via the center portion of the lid 210 It is preferable to form only one.

At least one air supply channel 213 may also be formed. However, two to four air supply channels 213 are preferably formed symmetrically with respect to the air discharge channels 217 to uniformly supply the air into the test chamber.

The lid portion 210 in which the air supply channel 213 and the air discharge channel 217 are formed may use stainless steel whose surface is electropolished to minimize the adsorption of contaminants on the inner wall of the lid portion 210. Use glass member. At this time, when the lid 210 of the glass member is used, the sample 260 can be easily observed, and the sample 260 is judged to be defective by measuring the emission amount of the pollutant by irradiating light or the like to a specific part of the sample. can do.

When the lid 210 is made of a glass member, it is necessary to close the lid 210 to the main body 230 to prevent the outside air from entering and in order to fix the lid on the upper surface of the lid 210 It is preferable to install the fixing ring 220 for.

On the other hand, the lower end of the lid portion 210 is provided with a main body portion 230, the body portion 230 is at least one end of the shape of a tubular shape, the open end is installed so as to be closed with the lid portion 210. do. One end of the body portion 230 which is closed with the lid portion 210 may further include an upper edge portion 231 extending from one end thereof. Of course, when both ends of the main body portion 230 is open, the upper edge portion 231 and the lower edge portion 233 extending from both ends may be further provided.

The body portion 230 is not necessarily cylindrical, but is preferably formed in a cylindrical shape to minimize the contamination of the pollutants on the inner wall of the body portion 230.

In addition, in order to minimize the adsorption of contaminants into the test chamber, it is preferable to use stainless steel whose surface is electropolished in the main body 230.

Since the inside of the main body 230 is slightly higher than atmospheric pressure, it is important to keep the airtight state so that uncontrolled outside air does not enter. Therefore, a sealing member 240 such as a teflon is installed on the contact surface between the lid 210 and the upper edge 231 of the main body 230, and the lower edge of the main body 230 in contact with the sample 260. The unit 233 is preferably provided with an air shielding member (not shown) such as rubber packing.

In addition, when the upper edge 231 or the fixing ring 220 of the lid 210 and the main body 230 is installed on the upper surface of the lid 210, the fixing ring 220 and the main body 230 It is preferable to fasten the airtightness of the test chamber by fastening the upper edge portion 231 of the) by a fastening means 232 such as aluminum French.

As described above, according to the present invention, since the lower end of the main body portion 230 is open, the pollutant emission test chamber according to the present invention can be directly installed on the building material in the field.

At this time, when the pollutant emission test chamber according to the present invention is directly installed on a sample such as building materials in the field to measure the concentration of the pollutant, the pollutant emission test chamber of the present invention is fixed to be secured to the building material. A stand equipped with the device can be used to fix the test chamber onto the building material.

On the other hand, the pollutant emission test chamber of the present invention can be used in the laboratory further provided with a base plate 250 that the sample 260 is placed on the lower end of the body portion 230.

Therefore, the contaminant emission test chamber according to the present invention can be used for the field when the main body portion 230 is open at both ends, provided with the base plate 250, and when the base plate 250 is removed.

At this time, in order to prevent outside air from entering into the test chamber, an air shielding member (not shown) is further installed on the lower surface border portion 233 of the main body portion in close contact with the sample, and the lower border portion 233 and the bottom plate of the main body portion are provided. 250 is preferably fastened by the fastening means.

In addition, the bottom of the test chamber provided with the bottom plate 250 may be further provided with an ondol device for heating the bottom plate 250, Figure 3 is a cross-sectional view of the pollutant emission test chamber equipped with an ondol device according to the present invention to be. In FIG. 3, the same components as in FIG. 2 are denoted by the same reference numerals, and a detailed description thereof will be omitted.

As shown in FIG. 3, an ondol device including an aluminum block 310 and a heat resistant member 320 such as a firebrick surrounding the bottom plate 250 may be further provided at a lower end of the bottom plate 250.

At this time, by further installing a temperature control device for adjusting the temperature of the aluminum block 310 by adjusting the temperature of the base plate 250 is placed the sample 260, the sample in a state reflecting the domestic living environment in the ondol culture ( 260, it is possible to measure the concentration of pollutants emitted. A heat resistant member 320, such as a firebrick, may be installed around the aluminum block 310 to prevent heat loss from the heated aluminum block 310.

As the ondol apparatus 300, a mantle heater or the like may be used. Mantle heaters are commonly used to heat reaction vessels in laboratories, and test chambers are installed in the mantle heaters. At this time, when the bottom surface of the mantle heater is heated, the temperature of the base plate 250 on which the sample 260 is placed is raised.

It is preferable that the temperature is controlled by the temperature control device 300 maintains the temperature 40 ~ 70 ℃. This is because in Korea, the temperature of the ondol installed under the flooring is approximately 40 ~ 70 ℃.

Hereinafter, the operation of the pollutant emission test chamber according to the preferred embodiment of the present invention having the configuration as described above will be described in detail with reference to FIGS. 2 and 3.

In the case of using in the field, the base plate 250 may be removed from the pollutant emission test chamber of the present invention and then fixed and used on a desired building material. On the other hand, if you want to experiment with the base plate 250, the sample 260 is collected and placed on the base plate 250, the sample 260 is prepared in the size of the base plate 250.

Hereinafter, the operation of the pollutant emission test chamber of the present invention in the state equipped with the base plate and the ondol device will be described.

First, the ondol device 300 is warmed to 40 ~ 70 ℃. The air is supplied to the test chamber through the air supply. The supplied air is introduced into the body 230 through the air supply nozzle 211, the air supply channel 213, and the air supply pipe 215 in order.

At this time, in order to release more contaminants emitted from the sample 260 in a shorter time, the air supply pipe 215 is predetermined from the sample 260 because the flowed air flowing in the surface of the sample must be maximized. Install it at a distance and adjust the flow rate of the supplied air to a certain amount.

That is, when the flow rate of air is constant, if the flow area of air above 1 cm from the sample surface is narrow, the separation distance between the air supply pipe 215 and the sample is relatively small so that the flow area of air flowing through the sample surface is maximum. If the air supply pipe 215 is installed far away from the sample and the flow area of the air on the sample surface is not sufficiently wide, supply more air from the air supply device to maximize the flow area of the air on the sample surface. Let's do it.

As a result of the simulation of the air flow in the pollutant discharge test chamber according to the present invention, the air supply pipe 215 is installed at a distance of 0.1 cm from the sample by placing the sample 260 having a diameter of 15 cm in the 1 liter test chamber. In addition, by adjusting the flow rate of the air to maintain the flow rate of 0.1 ~ 0.3m / s on the sample surface it was possible to maximize the area of the air flow on the sample surface. At this time, one air discharge channel is formed at the center of the lid portion, and the air supply channel and the air supply pipe were formed to be symmetrically formed around the air discharge channel.

Thus, unlike the conventional test chamber in which only a part of the supplied air passes through the surface of the sample, the pollutant emission test chamber according to the present invention controls the separation distance between the sample and the air supply pipe or adjusts the flow rate of the supplied air. By maximizing the flow area of air flowing through the surface of the sample, most of the supplied air can pass through the surface of the sample.

Therefore, according to the present invention, since most of the supplied air passes through the surface of the sample, unlike the conventional test chamber in which only a part of the supplied air passes through the surface of the sample, the pollutants may be released more quickly from the surface of the sample. Can be.

In this way, the more air passing through the surface of the sample, the faster the release of contaminants from the sample can be expected, which can be explained by the principle of diffusion.

That is, when most of the supplied air carries the contaminants while passing through the entire surface of the sample, the contaminant is continuously released from the sample having a high concentration of the contaminant, thereby increasing the release rate of the contaminant.

Considering the fact that the contaminants are released from the sample by the principle of diffusion, according to the present invention, the amount of air flowing through the surface of the sample is much higher than that of the conventional test chamber. It can be released in a shorter time.

Meanwhile, the air passing through the sample 260 is discharged to the outside through the air discharge channel 217 and the air discharge nozzle 219 together with the pollutants, and the discharged pollutants and air measure the concentration of the pollutants. (Not shown).

When the test chamber according to the present invention is used, much more pollutants may be released at an initial stage than the conventional test chambers, and a time point at which the pollutants are constantly released from the sample may be advanced, which will be described with reference to FIG. 4. .

Figure 4 is a graph showing the concentration of the pollutant release over time using the pollutant release test chamber and the conventional test chamber according to the present invention.

The graph of FIG. 4 shows the concentration of contaminants emitted from the same wallpaper over time using a conventional 20 liter test chamber and a 1 liter test chamber according to the present invention.

Here, the 1 liter test chamber was analyzed by taking a total of 36 samples from 1 day to 30 days, including the initial 1 hour, the 20 liter test chamber was analyzed by taking a total of 30 samples from 1 day to 30 days.

As can be seen in Figure 4, when using the test chamber according to the present invention a large amount of contaminants are initially released, the concentration of contaminants released from the sample is constant when the sample is left for a long time, such a constant concentration The timing of the maintenance is also much faster, so a faster release of contaminants can be expected.

According to the present invention, since most of the supplied air passes through the surface of the sample, more pollutants can be released from the sample in a shorter time, thereby greatly reducing the time for measuring the concentration of the pollutants contained in the sample. You can.

In addition, when the ondol device is provided at the bottom of the base plate, it is possible to measure the concentration of pollutants in a state reproducing the residential environment of Korea, so that the concentration of pollutants contained in the sample can be measured under more accurate conditions.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. Therefore, the scope of the present invention should be determined by the claims rather than the above-described detailed description.

According to the present invention, since most of the supplied air passes through the entire surface of the sample, it is possible to increase the rate at which the pollutant is released from the sample, thereby greatly reducing the time for measuring the concentration of the pollutant contained in the sample. Will be.

In addition, by increasing the release rate of contaminants emitted from the sample, it is possible to obtain data corresponding to the 3-day and 28-day data required by the ISO regulations in a much shorter time. Can reduce the cost of submitting the data required by ISO regulations.

In addition, according to the present invention, the capacity of the test chamber can be downsized to 1 liter, so that not only the manufacturing cost of the test chamber can be reduced, but also the ease of use can be achieved, and several test chambers can be placed in the thermostat at once. By installing the concentration of the pollutant can be measured, it is possible to shorten the time to measure the concentration of the pollutant contained in the sample.

In addition, according to the present invention, since the lower end of the main body is open, the test chamber can be directly installed and used on the building material installed in the actual site, so that it is easy to use and more accurately measures the concentration of contaminants contained in the sample. can do.

In addition, when the concentration of contaminants contained in the sample is further provided on the bottom surface of the bottom plate, the contaminants may be released in a state reproducing the indoor environment of Korea. You can measure more accurately.

Claims (15)

A lid part having an air supply channel for supplying air into the test chamber and an air discharge channel for discharging air in the test chamber to the outside; An air supply pipe communicating with one end of the air supply channel vertically and for supplying air into the test chamber; A main body having at least one end in the shape of an open tube, the open end being installed to be closed with the lid; And A sample attached to the other end of the main body so as to face each other with the lid; And a flow area in which the air flows on the surface of the sample is controlled by a distance between the air supply pipe and the sample and a flow rate of air supplied from the air supply pipe.  The method of claim 1, And the lid part is a glass member. The method of claim 2, The upper surface of the lid portion is pollutant emission test chamber characterized in that the fixing ring for fixing the lid portion is further provided. The method according to any one of claims 1 to 3, The air discharge channel is formed in the center of the lid portion, the air supply channel is characterized in that the pollutant emission test chamber is formed symmetrically with respect to the air discharge channel. The method of claim 4, wherein And one air discharge channel, and two to four air supply channels. The method of claim 1, The main body part further comprises a top edge portion extending from an open end of the body portion when both ends of the body portion and a bottom edge portion extending from the other open end of the body portion. The method of claim 6, And a sealing member on the contact surface of the lid portion and the upper edge portion to prevent air from entering. The method of claim 7, wherein The lid portion and the upper edge portion is pollutant emission test chamber, characterized in that fastened by a fastening means. The method of claim 6, The lower edge of the lower surface border portion in close contact with the sample is a pollutant emission test chamber, characterized in that further provided with an air shielding member for preventing the entry of air. The method according to any one of claims 6 to 9, The lower surface of the lower edge portion of the contaminant emission test chamber, characterized in that further comprising a base plate is placed. The method of claim 10, And a fastening means for fastening the bottom plate and the bottom edge portion. The method of claim 10, Contaminant emission test chamber, characterized in that the lower end of the bottom plate further comprises an ondol device for heating the bottom plate. The method of claim 12, The ondol device is a contaminant emission test chamber comprising an aluminum block and a heat resistant member surrounding the aluminum block. The method of claim 12, The ondol device is a pollutant emission test chamber, characterized in that the mantle heater. The method of claim 12, The temperature of the ondol device is a pollutant emission test chamber, characterized in that 40 ~ 70 ℃.

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