JP2019056651A - Ingredient analysis method of gas ingredient in glass unit, and gas collection-purpose jig - Google Patents

Abstract

To provide an ingredient analysis method of a gas ingredient in a glass unit that easily collects gas in double glass, and makes an ingredient analysis of the gas efficient.SOLUTION: An ingredient method of gas in a glass unit has the steps of: (A) implanting a jig made of a rigid implantation tube 2 in a peripheral material of a double glass to engage with the jig in the peripheral material, and reserving gas in a space in the rigid implantation tube; and (B) supplying the gas reserved in the space to an analysis instrument. The rigid implantation tube comprises: an introduction port that is arranged in a sealed space in the step (A) to introduce the gas to the space; and a portion that serves as an expelling port of the gas reserved in the space, and is capable of an opening/closing operation, and the rigid implantation tube has the introduction port provided on a lateral side of the rigid implantation tube. Further, a tip end in a direction where the rigid implantation tube is implanted in the peripheral material is configured to be non-opened.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a component analysis method for gas components in a glass unit.

  A plurality of glass plates arranged to face each other, a peripheral material for joining the glass plate and another glass plate, a sealed space composed of the glass plate and the peripheral material, and a gas that fills the sealed space, In addition to dry air, an inert gas such as helium, neon, argon, krypton, xenon, or sulfur hexafluoride is used as the gas of the glass unit (so-called multilayer glass) provided.

  The heat insulation performance and sound insulation performance of the glass unit are affected by the gas components filling the sealed space. As a method for analyzing a gas component in the sealed space, a non-destructive analysis method using an indirect method such as Patent Documents 1 and 2 has been proposed. As a method of analyzing the gas component that fills the sealed space of the glass unit by a direct method, a measurement end of an inert gas concentration measuring device called a transmission part is brought into contact with the part of the glass unit from the outside of the glass unit. A method of providing a structure in a glass unit is disclosed in Patent Document 3. However, providing such a structure in the glass unit is not a general configuration and is not applicable to a normal glass unit. There have been few studies on methods involving product destruction, in which gas is collected from a manufactured glass unit and the components of the gas are directly analyzed.

  In order to directly analyze the components of the gas, how to extract the gas from the glass unit is an important factor. As a method of collecting gas from a closed space, although the target article is different, in Patent Document 4, the gas in the food pack is collected with a syringe and a syringe in which the tip of the syringe is a gas collecting needle. Has been done.

US Pat. No. 5,1987,773 Japanese Patent No. 59996636 (US Patent No. 9097666) JP 2012-184131 A Japanese Utility Model Publication No. 62-037764

  From the viewpoint of quality assurance of the glass unit, it is desirable to collect the gas from the sealed space and to analyze the component of the collected gas with an analytical instrument. However, in the glass unit, the peripheral material and the glass plate are firmly fixed due to the characteristics of the product. Furthermore, the peripheral material itself is also a plurality of materials such as a metal spacer, a desiccant, and a resin sealing material. It is not easy to collect gas from the sealed space of the glass unit. For example, if gas sampling with a jig as in Patent Document 4 is applied to gas sampling from a glass unit, the injection port at the tip of the needle may be blocked by a resin sealing material, Such a material causes problems such as difficulty in penetrating the metal spacer.

  In order to extract gas from the glass unit, a jig suitable for the glass unit is required. An object of the present invention is to provide a method for improving the efficiency of component analysis of gas in a glass unit by providing a jig that can easily collect the gas in the glass unit.

The component analysis method of the gas component in the glass unit of the present invention,
A plurality of glass plates arranged opposite to each other;
A peripheral material for joining a glass plate and another glass plate;
A sealed space composed of the glass plate and the peripheral material;
A gas filling the sealed space, and a component analysis method for the gas in a glass unit comprising:
Step (A) of driving a jig made of a rigid driving tube into the peripheral member, engaging the jig with the peripheral member, and storing the gas in a space in the rigid driving tube;
Supplying the gas stored in the space to an analytical instrument (B),
The rigid driving tube is
An inlet that is disposed in the sealed space during the step (A) and introduces the gas into the space;
A part capable of opening and closing, which serves as a discharge port for the gas stored in the space;
The rigid driving tube is characterized in that the introduction port is provided on a side of the rigid driving tube, and a tip in a direction in which the rigid driving tube is driven into the peripheral member is not open. It is.

Moreover, the jig for collecting the gas in the glass unit of the present invention comprises a rigid driving tube,
The rigid driving tube is
A space for storing the gas;
An inlet for introducing the gas into the space when the rigid driving tube is driven into the peripheral member and engaged with the peripheral member;
The rigid driving tube includes a portion that can be opened and closed and serves as a discharge port for the gas stored in the space. The rigid driving tube includes the introduction port at a side of the rigid driving tube, and the rigid driving tube. The tip of the tube in the direction to be driven into the peripheral member is not open.

  In order to collect the gas in the jig while suppressing fluctuations in components, it is necessary to first drive the jig into the peripheral material and engage the jig with the peripheral material. In this case, the technical problem is that there is no introduction of gas from the peripheral environment from the site where the jig is driven, and the gas inlet to the space of the jig is the peripheral edge. It is to prevent clogging with the material constituting the material.

In the present invention, the jig is made of a rigid driving tube, the introduction port is arranged on a side of the rigid driving tube, and the tip of the rigid driving tube on the side to be driven into the peripheral member (that is, a jig) When a tool is driven into the peripheral material, the technical problem that has been brought forward is overcome by making the portion that contacts the peripheral material and penetrates the peripheral material non-opening.
When the jig is driven into the peripheral material, a part constituting the peripheral material and a part of the jig mainly become the tip. In the jig, the introduction port is disposed on a side of the rigid driving tube, and the tip is not open, so that the introduction port is blocked at a portion constituting the peripheral member. Absent.

  In addition, when a jig made of a rigid driving tube is engaged with the peripheral member, the portion constituting the peripheral member and the contact portion with the jig are elastic at the portion constituting the peripheral member. The airtightness of the contact portion is maintained by the force. The maintenance of the airtightness by the elastic force functions particularly effectively with the resin sealing material in the portion constituting the peripheral material.

  If the introduction port is not closed before the jig is driven into the peripheral member, the air present in the space may affect the gas components filling the sealed space. Surprisingly, however, this effect is negligible. This can be explained as follows. Since the size of the jig is limited by the distance between the glass plate of the glass unit, the volume of the space is very small compared to the volume of the sealed space. Therefore, it can be considered that the influence of the air present in the space on the analysis result of the gas component that fills the sealed space is within the measurement error range of the analytical instrument.

  According to the present invention, the gas in the glass unit can be collected easily and without being affected by the gas component from the peripheral environment. Therefore, the gas component in the glass unit, for example, the concentration of a specific gas can be accurately measured. It can be analyzed efficiently. Therefore, the quality inspection of the product before shipment of the glass unit can be performed efficiently.

It is a figure which illustrates typically the typical example of the jig | tool of this invention for extract | collecting the gas in a glass unit. It is a figure which illustrates typically the a-a 'cross section in FIG. It is a figure which illustrates typically the cross section of the peripheral part of the said glass unit about the typical example of the glass unit used as analysis object by this invention. It is a figure which illustrates typically the state where the jig | tool for extract | collecting gas is driven into the peripheral material of the glass unit, and the rigid driving tube of the jig is engaging with the said peripheral material. It is a figure which illustrates typically the state (main part) which inserted the needle 7 in the said site | part 4 of the jig | tool 1 provided with the site | part 4 which consists of rubber materials. It is a figure explaining the outline of the principal part of the system which uses syringe 6 as a buffer and supplies gas to an analytical instrument through the buffer.

  In this invention, the gas which fills the sealed space 54 of the glass unit 5 is extract | collected using the said jig | tool, and the component analysis of the extract | collected gas is made | formed with an analyzer. Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically illustrating a main part of a typical example of the jig 1, and FIG. 2 is a diagram schematically illustrating an a-a 'section in FIG. FIG. 3 is a diagram schematically illustrating a cross section of a peripheral portion of the glass unit with respect to a typical example of the glass unit to be analyzed in the present invention. A sealed space 54 is formed by the first glass plate 51, the second glass plate 52, and the peripheral material 53, and the sealed space 54 is filled with gas. The peripheral material 53 includes a peripheral material unit including a first resin sealing material 531, a second resin sealing material 532, a metal spacer 533, and a desiccant 534.

  The jig 1 for collecting the gas comprises a rigid driving tube 2. The rigid driving tube 2 includes a space 21 for storing the gas. Further, the side 23 of the rigid driving tube introduces the gas into the space 21 when the rigid driving tube 2 is driven into the peripheral member 53 of the glass unit and engaged with the peripheral member 53. An inlet 3 is provided. The distal end 22 of the rigid driving tube 2 is closed. In the example of the jig 1 shown in FIGS. 1 and 2, the tip 22 has a sharp shape. Examples of the sharp-shaped structure include a cone shape as shown in FIGS. The tip 22 is the side to be driven into the peripheral member 53. In the embodiment shown in FIGS. 1 and 2, since the tip 22 has a sharp shape, it is easy to drive the jig 1 into the peripheral member 53. It is also easy to penetrate the material 53. The cone shape is preferably a cone shape. The width in the length direction of the jig of the portion constituting the sharp shape may be 0.5 mm to 10 mm.

  When the atmosphere exists in the space 21 before the jig 1 is driven into the peripheral material 53, the influence of the atmosphere on the analysis result of the gas component that fills the sealed space 54 is measured by the measurement error of the analytical instrument. In order to ensure that it falls within the range, the volume of the space 21 of the jig 1 may be 1 μL to 4 mL, preferably 10 μL to 2 mL, more preferably 50 μL to 1 mL.

  Moreover, in the example of the jig 1 shown in FIGS. 1 and 2, a portion 4 that can be opened and closed is provided at the opposite end 24 of the tip 22 as an outlet for the gas stored in the space 21. ing. A typical example of the portion 4 in the present invention is made of a rubber material. A mechanism in which the rubber material serves as a discharge port for the gas stored in the space 21 and can be opened and closed will be described later. Examples of the rubber material include natural rubber and various synthetic rubbers such as silicon rubber, butyl rubber, urethane rubber, polysulfide rubber, and the like. Other examples of the material of the portion 4 include various resins having the same rubber elasticity as the rubber material. In addition, as the part 4, an open / close valve may be used. Further, the end portion 4 has a function of only closing the space 21, and the portion 4 may be disposed in a pipe separately provided on the side 23 of the rigid driving tube.

  Furthermore, the inner diameter of the rigid driving tube 2 (the part represented by the side 23 in FIG. 2) is preferably 0.05 mmφ to 10 mmφ. If it is thinner than 0.05 mmφ, it takes time to collect the amount of gas necessary for component analysis, and the efficiency is lost. On the other hand, if it is thicker than 10 mmφ, the glass unit to which the jig 1 can be applied may be limited, and workability when the jig 1 is driven into the peripheral material 53 may be lowered. Considering these, the inner diameter is preferably 0.5 mmφ to 5 mmφ, more preferably 1 mmφ to 3 mmφ.

  The outer diameter of the rigid driving tube 2 (the portion represented by the side 23 in FIG. 2) is preferably 0.3 mmφ to 15 mmφ. When it is thinner than 0.3 mmφ, the rigid driving tube 2 is easily bent. On the other hand, if it is thicker than 15 mm, the glass unit to which the jig 1 can be applied may be limited, and workability when the jig 1 is driven into the peripheral material 53 may be reduced. In consideration of these, the outer diameter is preferably 0.5 mmφ to 8 mmφ, more preferably 1 mmφ to 5 mmφ. Needless to say, the outer diameter is larger than the inner diameter.

  The length of the rigid driving tube 2 (distance from the bottom surface portion to the end portion 24 when the tip 22 is regarded as a virtual three-dimensional shape) penetrates the peripheral member 53 and the inlet 3 is sealed. It is only necessary to have a length that can be arranged in the space 54. The length is not particularly limited, but may be 15 mm to 200 mm, or 20 mm to 100 mm. In addition, since it is convenient and preferable to drive the jig 1 into the peripheral material 53 manually by using a hammer or the like in the manner of nail driving, the outer diameter of the end portion 24 is larger than the outer diameter described above. It is preferable that For example, the outer diameter of the part represented by the side 23 may be +3 mmφ to +30 mmφ.

The jig 1 includes at least one introduction port 3. For example, up to five introduction ports may be arranged in the jig 1 as long as the rigidity of the jig 1 is maintained. The introduction port 3 is disposed in the vicinity of the tip 22, for example, at a position of 1 mm to 50 mm in the length direction of the rigid driving tube 2 from the bottom surface when the tip 22 is regarded as a virtual three-dimensional shape. It may be. The opening area of the inlet port 3, for example may be a 0.01 mm ² to 3 mm ^2, A sum of the opening areas of the inlet 3 may be, for example 0.01 mm ² to 10 mm ^2. The shape of the opening 3 is not particularly limited, and for example, any shape such as a circular shape, an elliptical shape, or a rectangular shape can be adopted. Further, the inlet 3 may be provided with an openable / closable mechanism such as a slidable lid that can be mechanically operated through the side 23 of the rigid driving tube and a lid that can be opened in a double-tone manner. When the introduction port 3 has a mechanism that can be opened and closed, the introduction port 3 may be opened after the space 21 is in a reduced pressure state and the jig 1 is driven into and engaged with the peripheral member 53. .

  Examples of the material for forming the rigid driving tube 2 include metals such as stainless steel, ordinary steel, copper, brass, brass and aluminum alloys, ceramics such as zirconia, alumina and silicon nitride, composite ceramics, FRP, acrylic and polycarbonate. And hard resin.

  Next, the jig 1 will be described in more detail, including the usage mode of the jig 1 (this corresponds to the step (A)). FIG. 4 is a diagram schematically illustrating a state in which the jig 1 is driven into the peripheral member 53 and the rigid driving tube 2 of the jig is engaged with the peripheral member 53. The jig 1 is driven into the peripheral material 53 from the tip 22. And the peripheral material 53 is penetrated by the front-end | tip 22 so that the inlet 3 may be arrange | positioned in the sealed space 54. FIG. Thereby, the sealed space 54 and the space 21 are integrated through the introduction port 3.

  When the space 21 is at the same pressure as the atmospheric pressure before the jig 1 is driven into the peripheral member 53, the sealed space 54 and the space 21 are simply integrated via the inlet port 3, The traffic between the gas filled in the sealed space 54 and the gas (air) existing in the space 21 is limited, and it takes time to store the gas in the sealed space 54 in the space 21. .

Therefore, storing the gas in the sealed space 54 in the space 21 may be accelerated by performing the following first method or second method. The first method is
a) Opening a part that can be opened and closed and that serves as a discharge port for the gas stored in the space 21 provided in the rigid driving tube 2, and connects the part to, for example, a decompression space. Of gas from the space 21,
b) Next, the gas in the sealed space 54 is guided to the space 21.
That's it.

  For example, a jig 1 having a part 4 made of a rubber material, an outer cylinder 61 equipped with a gas collecting needle 7 and hermetically sealed by a pusher 62, and a syringe 6 having a movable pusher 62 are prepared. did. As shown in FIG. 5, the gas sampling needle 7 is inserted into the portion 4. If the pusher 62 is pulled to the side opposite to the distal end side (gas sampling needle 7 side) of the outer cylinder 61, the inside of the outer cylinder 61 is depressurized, so that the gas (atmosphere) in the space 21 is the outer cylinder. It is discharged to 61. As a result, the introduction of the gas in the sealed space 54 into the space 21 is accelerated, and the time for storing the gas in the sealed space 54 in the space 21 can be shortened. FIG. 5 is a diagram schematically illustrating a state (main part) in which the gas sampling needle 7 is inserted into the part 4 of the jig 1 having the part 4 made of a rubber material. The first method is effective when it is desired to reduce the influence of the atmosphere existing in the space 21 as much as possible.

The second method is
c) Opening a part that can be opened and closed, serving as an outlet for the gas stored in the space 21, connecting the part to, for example, a decompression space, and exhausting the gas in the space 21 from the space 21.
d) leading the gas in the sealed space 54 to the space 21;
e) The gas discharged into the decompression space is sent again to the space 21.
f) In the space 21, both gases are mixed and diffused into the sealed space 54.
g) The operations of c) to f) are repeated several times, for example, twice or three times, and the gas in the space 21 and the gas in the sealed space 54 are sufficiently mixed.
That's it.

  For example, a jig 1 having a portion 4 made of a rubber material, an outer cylinder 61 having a gas sampling needle 7 and a syringe 6 having a movable pusher 62 are prepared, as shown in FIG. The gas sampling needle 7 is inserted into the portion 4. If the pusher 62 is pulled to the side opposite to the distal end side (gas sampling needle 7 side) of the outer cylinder 61, the inside of the outer cylinder 61 is depressurized, so that the gas (atmosphere) in the space 21 is the outer cylinder. It is discharged to 61. Next, the movable pusher 62 is pushed into the distal end side of the outer cylinder 61, and the movable pusher 62 is pulled to the side opposite to the distal end side of the outer cylinder 61.

  If the above operation is repeated several times, the introduction of the gas in the sealed space 54 into the space 21 is accelerated, and the time for storing the gas in the sealed space 54 in the space 21 can be shortened. . The second method is an effective method when the syringe 6 is used as a buffer and the gas stored in the syringe 6 is supplied to the analytical instrument. Since this method does not require the gas in the sealed space 54 to be excessively discharged, the sealed space is not suitable for a relatively small glass unit, for example, a glass unit having a volume of 90 mL to 1000 mL in the sealed space 54. The decrease in the internal pressure of the gas in 54 can be suppressed, and the load on the buffer in the process of storing the gas in the buffer can be reduced.

  When the part 4 is made of a rubber material, the part 4 can be opened and closed in combination with the needle 7. When the needle 7 inserted into the part 4 is pulled out from the part 4, the part through which the needle 7 penetrates is closed by rubber elasticity. The needle 7 may have an inner diameter of 0.1 mm to 3.0 mm and an outer diameter of 0.2 to 3.5 mm. Needless to say, the outer diameter is larger than the inner diameter. The outer diameter of the needle 7 is naturally smaller than the inner diameter of the rigid driving tube 2. The length of the needle 7 is not limited as long as it penetrates the part 4 made of a rubber material, but may be 5 mm to 50 mm. As the needle 7, a needle that is widely used for medical purposes or chemical experiments can be used.

  Next, the step (B) of supplying the gas in the glass unit 1 to the analytical instrument stored in the space 21 will be described. In this step, a method of supplying gas directly from the jig 1 to the analytical instrument or a method of supplying gas to the analytical instrument via a buffer can be mentioned. In the case of the former method, a system for connecting the pipe from the analytical instrument to the jig 1 may be configured. The latter method will be described in detail below.

  FIG. 6 is a diagram for explaining the outline of the main part of a system that uses the syringe 6 as a buffer and supplies gas to the analytical instrument through the buffer. An intermediate member 8 is disposed between the syringe 6 and the needle 7. The intermediate material 8 is further connected to a pipe 9 connected to an analytical instrument (not shown). The intermediate member 8 can adjust a gas flow path by a valve operation such as a three-way cock, and “forms a gas flow path between the space 21 and the buffer”, “the buffer and the pipe 9 and Any gas can be used as long as it can be switched.

  The intermediate material 8 is brought into a state of forming a gas flow path between the space 21 and the buffer, and the gas stored in the space 21 is sent to the buffer. When the buffer is a syringe 6 as shown in FIG. 6, by pulling the pusher 62 on the side opposite to the distal end side of the outer cylinder 61, the pusher 62 is pulled into the outer cylinder 61 of the syringe. The gas stored in the space 21 can be stored.

  Next, the intermediate material 8 is brought into a state of forming a gas flow path between the buffer and the pipe 9, and the gas in the buffer is supplied to the analytical instrument to perform the gas component analysis. When the buffer is composed of the syringe 6, when the gas is supplied from the analytical instrument to the analytical instrument by sucking the gas, the pusher 62 becomes larger as the gas is supplied from the outer cylinder 61 to the analytical instrument. Since it is pushed into the outer cylinder 61 by the atmospheric pressure, gas can be supplied to the analytical instrument while maintaining the atmospheric pressure in the outer cylinder 61 constant. Introduction into the analytical instrument in a state where the gas to be analyzed is held at a constant pressure is effective in improving the analysis accuracy of the gas.

  The capacity of the outer cylinder is the total amount of gas supplied to the analytical instrument, that is, “the amount of gas consumed for analysis by the analytical instrument” and “atmosphere present in the flow path from the pipe 9 to the analytical instrument” What is necessary is just to satisfy | fill the sum total with "the quantity of the gas for substituting (air)", and it is good also as 1 mL-100 mL. If it is smaller than 1 mL, applicable analytical instruments may be limited, and the influence of air (air) existing in the flow path from the pipe 9 to the analytical instruments may appear. When the volume is larger than 100 mL, when the buffer is made of the syringe 6, the resistance of the pusher 62 and the outer cylinder 61 is increased, and the pusher 62 is hardly pushed into the outer cylinder 61 with a constant pressure.

  As the analytical instrument, a gas chromatograph, an oxygen concentration meter, a thermoelectric gas analyzer, or the like can be used.

  The first glass plate 51, the second glass plate 52, the peripheral member 53, the sealed space 54 formed by the first glass plate 51, the second glass plate 52, and the peripheral member 53, and the sealed space 54 are filled. The glass unit 1 provided with gas is a typical example of a glass unit to be analyzed in the present invention. The peripheral material 53 includes a peripheral material unit including a first resin sealing material 531, a second resin sealing material 532, a metal spacer 533, and a desiccant 534. The glass unit may include three or more glass plates and two or more sealed spaces. The metal spacer 533 may be a resin spacer. Furthermore, the structure which does not contain the desiccant 534 may be sufficient.

In the glass unit 1, the glass plate has a size of 0.02 m ² or more (the upper limit is not particularly limited but may be 6 m ² or less), the glass plate has a thickness of 2 mm to 20 mm, the sealed space 54 According to the present invention, even in the case where the interval of 4 mm to 30 mm is used, or in the case where the gas filling the sealed space is dry air, argon, krypton, xenon, helium, neon, sulfur hexafluoride, etc. The gas component can be analyzed.

DESCRIPTION OF SYMBOLS 1 Jig for collecting gas 2 Rigid driving tube 21 Space 22 for storing gas A distal end 23 of a rigid driving tube to be driven into a peripheral member of a glass unit 23 A side 24 of a rigid driving tube The opposite end 3 The inlet 4 for introducing the gas in the glass unit into the space 21 The part that can be opened and closed as the outlet for the gas stored in the space 21 The glass unit 51 The first glass plate 52 Second glass plate 53 Peripheral material 531 First resin sealing material 532 Second resin sealing material 533 Metal spacer 534 Desiccant 6 Syringe 61 Outer cylinder 62 Movable pusher 7 Gas sampling needle 8 Intermediate material 9 To analytical instrument Piping connected to

Claims (12)

A plurality of glass plates arranged opposite to each other;
A peripheral material for joining a glass plate and another glass plate;
A sealed space composed of the glass plate and the peripheral material;
A gas filling the sealed space;
A component analysis method for the gas in a glass unit comprising:
Step (A) of driving a jig made of a rigid driving tube into the peripheral member, engaging the jig with the peripheral member, and storing the gas in a space in the rigid driving tube;
Supplying the gas stored in the space to an analytical instrument (B),
The rigid driving tube is
An inlet that is disposed in the sealed space during the step (A) and introduces the gas into the space;
A part capable of opening and closing, which serves as a discharge port for the gas stored in the space;
The rigid driving tube includes the introduction port on a side of the rigid driving tube, and a tip in a direction in which the rigid driving tube is driven into the peripheral member is not open.
Component analysis method for gas components in the glass unit. The component analysis method for a gas component in a glass unit according to claim 1, wherein the tip has a sharp shape. The component analysis method of the gas component in the glass unit of Claim 1 or 2 whose volume of the said space is 1 microliter-4 mL. The component analysis method of the gas component in the glass unit in any one of Claims 1 thru | or 3 whose internal diameter of the said rigid driving tube is 0.05 mmphi-10mmphi. The component analysis method in the glass unit according to claim 1, wherein an outer diameter of the rigid driving tube is 0.3 mmφ to 15 mmφ. The part that can be opened and closed is made of a rubber material,
The opening and closing operation is performed by inserting / removing the gas sampling needle into / from the rubber material,
The component analysis method of the gaseous component in the glass unit in any one of Claims 1 thru | or 5 which fills the said space with the said gas stored in the said enclosed space via the said gas collection needle. The component analysis method of the gas component in the glass unit in any one of Claims 1 thru | or 6 which supplies the said gas stored in the said space to the said analytical instrument in the said step (B) through a buffer. . The component analysis method of the gaseous component in the glass unit of Claim 7 which keeps the gas pressure in the said buffer constant, and supplies the said gas to the said analytical instrument. The component analysis method of the gaseous component in the glass unit of Claim 7 or 8 whose said buffer is a syringe. The component analysis method of the gaseous component in the glass unit of Claim 9 which keeps the gas pressure in a syringe constant by atmospheric pressure. The component analysis method of the gaseous component in the glass unit in any one of Claims 6, 9, and 10 with which the said syringe is provided with the unit of the outer cylinder of a capacity | capacitance of 5 mL-100 mL, and a movable pusher. A plurality of glass plates arranged opposite to each other;
A peripheral material for joining a glass plate and another glass plate;
A sealed space composed of the glass plate and the peripheral material;
A gas filling the sealed space;
A jig for collecting the gas by being driven into the peripheral member of the glass unit and being engaged with the peripheral member,
The jig comprises a rigid driving tube,
The rigid driving tube is
A space for storing the gas;
An inlet for introducing the gas into the space when the rigid driving tube is engaged with the peripheral member;
A part capable of opening and closing, which serves as a discharge port for the gas stored in the space;
The rigid driving tube is provided with the introduction port on a side of the rigid driving tube, and a tip of the rigid driving tube in a direction to be driven into the peripheral member is not open.
Jig for collecting gas in glass unit.