JP2003042491A - Method of measuring amount of ventilation and calculating diffused amount of chemical material - Google Patents

Method of measuring amount of ventilation and calculating diffused amount of chemical material

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Publication number
JP2003042491A
JP2003042491A JP2001229074A JP2001229074A JP2003042491A JP 2003042491 A JP2003042491 A JP 2003042491A JP 2001229074 A JP2001229074 A JP 2001229074A JP 2001229074 A JP2001229074 A JP 2001229074A JP 2003042491 A JP2003042491 A JP 2003042491A
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JP
Japan
Prior art keywords
tracer gas
measuring
amount
measurement
ventilation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001229074A
Other languages
Japanese (ja)
Inventor
Hiromi Yamada
裕巳 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui House Ltd
Original Assignee
Sekisui House Ltd
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Filing date
Publication date
Application filed by Sekisui House Ltd filed Critical Sekisui House Ltd
Priority to JP2001229074A priority Critical patent/JP2003042491A/en
Publication of JP2003042491A publication Critical patent/JP2003042491A/en
Pending legal-status Critical Current

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  • Ventilation (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method of measuring amount of ventilation and calculating diffused amount of chemical material by which the concentration of a chemical material, such as a volatile organic compound, etc., diffused from a building material, etc., in a room to be measured can be measured and, at the same time, the amount of ventilation in the room can be measured easily so as to grasp the chemical material diffusing characteristic of the chemical material. SOLUTION: This method comprises a step of diffusing a tracer gas in the room to be measured, a step of adsorbing the diffused tracer gas and the chemical material, such as the volatile organic compound, etc., diffused from the building material, etc., and a step of quantitatively analyzing the adsorbed tracer gas and chemical material.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、揮発性有機化合物
等の化学物質の室内濃度の測定と同時に、その測定室の
換気量を測定することにより、測定室内の建築材料等か
ら放散される揮発性有機化合物等の化学物質の放散量を
測定する換気量測定および化学物質放散量算出方法に関
するものである。 【0002】 【従来の技術】建物の外装材または内装材に使用される
合板またはパーティクルボード等の合成樹脂製の建築材
料等から放散されるホルムアルデヒドまたは木材保存
材、防蟻剤およびトルエン、キシレン等の揮発性有機化
合物等の化学物質は、室内空気を汚染するだけでなく、
シックハウス症候群や化学物質過敏症の原因ともなり、
人体の健康を害する。 【0003】そこで、建築材料等から放散されるホルム
アルデヒドやトルエン、キシレン等の揮発性有機化合物
等の化学物質には、室内濃度の指針値(例えば、ホルム
アルデヒドでは、30分平均値で100μg/m
下)が定められており、測定室内においてこれら化学物
質の室内濃度がこの指針値を下回っているかどうかを確
認するためにこれら化学物質の室内濃度を測定する必要
があるが、その測定方法については様々な公知の測定方
法があり、これら化学物質の室内濃度を容易に測定する
ことができる。 【0004】また、測定室の換気量の測定方法として
は、二酸化炭素や六フッ化硫黄等のトレーサーガスによ
る減衰法、一定発生法、一定濃度法等の様々な公知の測
定方法があり、その一例として、測定室内にトレーサー
ガスボンベ、トレーサーガス注入装置、トレーサーガス
濃度測定装置、トレーサーガス注入・濃度測定制御装
置、記憶装置等からなるトレーサーガス注入・測定ユニ
ットを配置し、これを別室に配置した解析装置で管理し
て、測定室のトレーサーガス放散量とトレーサーガス濃
度の測定値を経時的に収集し解析処理をおこない、測定
室の換気量を測定する方法がある。 【発明が解決しようとする課題】 【0005】しかしながら、公知の化学物質の室内濃度
の測定方法では、化学物質の室内濃度を測定することは
できるが、建物の建具や換気口から、測定室の内外の温
度差や風圧力によって生じる自然換気および機械換気に
よる換気量を同時に測定することができないので、建築
材料等から放散される揮発性有機化合物等の化学物質の
放散量を測定することができないという問題点があっ
た。 【0006】また、このような建築材料等から放散され
る揮発性有機化合物等の化学物質の放散量を測定するた
めには、測定室の換気量を測定する必要があるが、前述
の測定方法では、大規模な設備が必要であるという問題
点があった。 【0007】したがって、測定室内における建築材料等
から放散される揮発性有機化合物等の化学物質の室内濃
度の測定と同時に、この測定室の換気量を測定すること
は困難であることから、前記化学物質の放散量を測定す
ることができないので、前記化学物質の放散特性を把握
することができないという問題点があった。 【0008】本発明は、上記課題に鑑みてなされたもの
であり、建築材料等から放散される揮発性有機化合物等
の化学物質の放散特性を把握するために、測定室内にお
ける該化学物質の室内濃度の測定と同時に、この測定室
の換気量を簡便に測定することができる換気量測定およ
び化学物質放散量算出方法を提供することを目的とす
る。 【0009】 【課題を解決するための手段】前記目的を達成するため
になされた本発明の請求項1に記載の換気量測定および
化学物質放散量算出方法は、測定室内の建築材料等から
放散される揮発性有機化合物等の化学物質の室内濃度の
測定と同時に、測定室の換気量を測定する測定方法であ
って、測定室内にトレーサーガスを放散させる工程と、
該放散されたトレーサーガスおよび測定室内の建築材料
等から放散された揮発性有機化合物等の化学物質を吸着
させる工程と、これら吸着されたトレーサーガスおよび
前記化学物質を定量分析する工程と、からなることを特
徴とするものである。 【0010】 【発明の実施の形態】以下、本発明の実施の形態につい
て図面に基づいて説明する。本実施の形態に係る換気量
の測定方法は、測定室内の建築材料等から放散される揮
発性有機化合物(以下、単にVOCsという。)の室内
濃度の測定と同時に、その測定室の換気量を測定する測
定方法であって、測定室内にトレーサーガスを放散させ
る工程と、該放散されたトレーサーガスおよび測定室内
の建築材料等から放散された揮発性有機化合物を吸着さ
せる工程と、これら吸着されたトレーサーガスおよびV
OCsを定量分析する工程とからなるものである。以
下、さらに詳細に説明する。 【0011】前記測定室R内にトレーサーガス1を放散
させる工程で使用されるトレーサーガス放散装置2は、
図1に示すように、トレーサーガス1を前記測定室Rに
放散させるものであり、周辺環境の影響を受けずに一定
に安定的に前記トレーサーガス1を放散させることがで
きれば、特に限定はされないが、例えばアルミ密封袋か
ら取り出して所定の高さ位置に吊り下げるだけで前記ト
レーサーガス1を放散させる等の取扱いが簡便であるパ
ッシブ装置が望ましい。しかしながら、前記トレーサー
ガス放散装置2をパッシブ装置として、前記測定室Rの
室内条件により一定に安定的に前記トレーサーガス1を
放散させることができない場合には、液体の揮発を利用
したマイクロシリンジによる一定発生装置や、直接トレ
ーサーガスを発生させるガスボンベ等を使用するアクテ
ィブ装置とする。 【0012】また、前記トレーサーガス1は、人体にと
って安全であり、VOCs3の定量分析の際に同時に定
量分析することができるガスであれば、特に限定される
ものではないが、本実施の形態においては、VOCsの
定量分析に影響を与えないで前記測定室Rの換気量の算
定をすることができるように、空気中に存在しないガス
が好適である。 【0013】そして、図1に示すように、前記トレーサ
ーガス1を所定時間放散させた後に、前記トレーサーガ
ス1および建築材料等から放散されたVOCs3を吸着
させる工程で使用される吸着装置4は、図1に示すよう
に、前記トレーサーガス放散装置2と同様に、前記測定
室R内の所定の高さ位置に吊り下げられて配置される。 【0014】また、前記吸着装置4は、前記トレーサー
ガス1および前記VOCs3を確実に吸着させることが
できればよく、前記トレーサーガス放散装置2がパッシ
ブ装置であるときには、ホルムアルデヒドの室内濃度の
測定に使用されるパッシブサンプラ等のように簡便なパ
ッシブ装置とし、前記トレーサーガス放散装置2がアク
ティブ装置であるときには、既存のアクティブ型の吸着
装置とする。 【0015】次に、本実施の形態に係る室内濃度および
換気量の測定方法について説明する。まず、図1に示す
ように、前記測定室Rの窓、扉等の開口部を開放して、
外気と前記測定室R内の空気質を略均質にしておく。 【0016】前記トレーサーガス放散装置2および前記
吸着装置4がパッシブ装置である場合には、前記測定室
Rの窓、扉等の開口部を閉鎖後、前記トレーサーガス放
散装置2から前記トレーサーガス1を放散させて前記ト
レーサーガス1濃度が平衡になった後に、前記吸着装置
4に前記トレーサーガス1および前記VOCs3を吸着
させる。 【0017】また、前記トレーサーガス放散装置2およ
び前記吸着装置4がアクティブ装置である場合には、前
記測定室Rの窓、扉等の開口部を閉鎖後、前記トレーサ
ーガス放散装置2から前記トレーサーガス1を放散させ
て5時間経過した後に、前記吸着装置4に30分かけて
前記トレーサーガス1および前記VOCs3を吸着させ
る。 【0018】なお、前記トレーサーガス1の放散時に
は、前記トレーサーガス1を測定室R全体に均質に放散
させることが望ましく、前記トレーサーガス1の拡散が
必要と判断されたときには、図外の小型ファン等の拡散
装置を使用して前記トレーサーガス1を前記測定室R内
に均質となるように放散させる。 【0019】そして、前記トレーサーガス1および前記
VOCs3を吸着させた前記吸着装置4の定量分析をお
こなう。定量分析の手段は、特に限定されないが、前記
トレーサーガス1および前記VOCs3の気中濃度をマ
イクログラム単位で測定する。 【0020】次に、前述のようにして測定された前記ト
レーサーガス1の気中濃度から前記測定室Rの単位時間
当たりの換気量を算定する。前記測定室Rの換気量は、
前記トレーサーガス1の放散量を前記トレーサーガス1
の室内濃度で除することにより算定される。前記トレー
サーガス1が大気中に存在している気体であれば、前記
トレーサーガス1の室内濃度は、前記測定室Rの測定さ
れた室内濃度から測定時の外気濃度を引いた差であり、
前記トレーサーガス1の室内濃度を求めるときには、測
定時の外気濃度を測定しなければならないが、本実施の
形態では、前記トレーサーガス1を大気中に存在しない
気体としているので、前記トレーサーガス1の室内濃度
は、前記トレーサーガス1の気中濃度のみから求めるこ
とができる。 【0021】そして、前記トレーサーガス1の放散量と
前記トレーサーガス1の気中濃度より求めた前記測定室
Rの換気量を用いて、前記VOCs3の放散量を求め
る。 【0022】 【発明の効果】以上説明したように、本発明の請求項1
に記載の換気量測定および化学物質放散量算出方法は、
測定室内の建築材料等から放散される揮発性有機化合物
等の化学物質の室内濃度の測定と同時に、測定室の換気
量を測定する測定方法であって、測定室内にトレーサー
ガスを放散させる工程と、該放散されたトレーサーガス
および測定室内の建築材料等から放散された揮発性有機
化合物等の化学物質を吸着させる工程と、これら吸着さ
れたトレーサーガスおよび前記化学物質を定量分析する
工程と、からなるので、トレーサーガスを所定の時間、
所定の放散量で放散させ、揮発性有機化合物等の化学物
質と共にトレーサーガスを吸着させて、トレーサーガス
の析出量を測定することにより、揮発性有機化合物等の
化学物質の室内濃度の測定と同時に測定室の換気量を測
定することができ、さらに、トレーサーガスにより測定
された換気量に揮発性有機化合物等の化学物質の室内濃
度を乗ずることにより、容易に揮発性有機化合物等の化
学物質の放散量を算出することができるという利点があ
る。 【0023】このように、トレーサーガスを揮発性有機
化合物の吸着と同じ方法で吸着させて定量分析するだけ
でよいので、大規模な設備を要することなく測定室の換
気量を測定することができるという利点がある。 【0024】したがって、大規模な設備を要することな
く、簡便且つ安価に揮発性有機化合物等の化学物質の放
散特性を把握することができるという利点がある。 【0025】さらにまた、測定室の換気量のみを測定す
る場合にも使用することができるという利点がある。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the indoor concentration of a chemical substance such as a volatile organic compound at the same time as measuring the ventilation volume of the measuring room. The present invention relates to a method for measuring ventilation and measuring a chemical substance emission amount for measuring an emission amount of a volatile organic compound or the like emitted from a building material or the like in a room. 2. Description of the Related Art Formaldehyde or wood preservatives emitted from synthetic resin building materials such as plywood or particleboard used for exterior or interior materials of buildings, termiticides, toluene, xylene, etc. Chemicals, such as volatile organic compounds, not only pollute indoor air,
It can cause sick house syndrome and chemical sensitivity,
Harm to human health. Therefore, chemical substances such as formaldehyde and volatile organic compounds such as toluene and xylene emitted from building materials and the like are included in the guideline value of indoor concentration (for example, in the case of formaldehyde, 100 μg / m 3 at an average value of 30 minutes). It is necessary to measure the indoor concentration of these chemicals in the measurement room in order to confirm whether the indoor concentration of these chemicals is lower than this guideline value. There are various known measurement methods, and the indoor concentration of these chemicals can be easily measured. There are various known methods for measuring the ventilation volume of the measurement room, such as an attenuation method using a tracer gas such as carbon dioxide and sulfur hexafluoride, a constant generation method, a constant concentration method, and the like. As an example, a tracer gas cylinder, a tracer gas injection device, a tracer gas concentration measurement device, a tracer gas injection / concentration measurement control device, a tracer gas injection / measurement unit including a storage device, and the like are arranged in a measurement room, and this is arranged in a separate room. There is a method of measuring the amount of tracer gas emission and the measured value of the tracer gas concentration in the measurement room over time, performing analysis processing, and measuring the ventilation volume of the measurement room by controlling the analysis device. [0005] However, according to the known method for measuring the indoor concentration of a chemical substance, the indoor concentration of the chemical substance can be measured. It is not possible to measure the amount of natural and mechanical ventilation caused by temperature differences and wind pressures inside and outside at the same time, so it is not possible to measure the amount of chemical substances such as volatile organic compounds emitted from building materials etc. There was a problem. [0006] In order to measure the amount of volatile organic compounds and other chemical substances emitted from such building materials and the like, it is necessary to measure the amount of ventilation in the measurement room. Then, there was a problem that a large-scale facility was required. Therefore, it is difficult to measure the indoor concentration of a chemical substance such as a volatile organic compound radiated from a building material or the like in a measurement room, and at the same time, to measure the ventilation volume of the measurement room. Since the emission amount of the substance cannot be measured, there is a problem that the emission characteristics of the chemical substance cannot be grasped. The present invention has been made in view of the above-mentioned problems, and has been made in order to understand the emission characteristics of chemical substances such as volatile organic compounds emitted from building materials and the like. It is an object of the present invention to provide a method for measuring a ventilation volume and calculating a chemical substance emission amount, which can easily measure the ventilation volume of the measurement room simultaneously with the measurement of the concentration. According to a first aspect of the present invention, there is provided a method for measuring a ventilation rate and calculating a chemical substance emission amount which emits from a building material or the like in a measurement room. Simultaneous measurement of the indoor concentration of a chemical substance such as a volatile organic compound to be performed, a measurement method for measuring the ventilation volume of the measurement room, a step of dispersing the tracer gas into the measurement room,
A step of adsorbing the emitted tracer gas and chemical substances such as volatile organic compounds emitted from building materials and the like in the measurement room, and a step of quantitatively analyzing the adsorbed tracer gas and the chemical substance. It is characterized by the following. Embodiments of the present invention will be described below with reference to the drawings. The measurement method of the ventilation volume according to the present embodiment measures the indoor concentration of a volatile organic compound (hereinafter, simply referred to as VOCs) emitted from a building material or the like in a measurement room and simultaneously measures the ventilation volume of the measurement room. A measurement method for measuring, wherein a step of dispersing the tracer gas into the measurement chamber, a step of adsorbing the emitted tracer gas and volatile organic compounds emitted from building materials and the like in the measurement chamber, and Tracer gas and V
And quantitatively analyzing OCs. The details will be described below. The tracer gas dispersing device 2 used in the step of dispersing the tracer gas 1 into the measuring chamber R comprises:
As shown in FIG. 1, the tracer gas 1 is diffused into the measurement chamber R. There is no particular limitation as long as the tracer gas 1 can be diffused stably without being affected by the surrounding environment. However, it is desirable to use a passive device that is easy to handle such as dispersing the tracer gas 1 simply by taking it out of the sealed aluminum bag and hanging it at a predetermined height. However, when the tracer gas dissipating device 2 is a passive device and the tracer gas 1 cannot be dissipated stably and stably due to the indoor conditions of the measurement room R, the tracer gas dispersing device 2 may be dispensed with a micro syringe using volatilization of liquid. It is an active device that uses a generator or a gas cylinder that directly generates tracer gas. The tracer gas 1 is not particularly limited as long as it is safe for the human body and can be quantitatively analyzed simultaneously with the quantitative analysis of VOCs3. Preferably, a gas that does not exist in the air is suitable so that the ventilation volume of the measurement room R can be calculated without affecting the quantitative analysis of VOCs. As shown in FIG. 1, after the tracer gas 1 is radiated for a predetermined period of time, the adsorption device 4 used in the step of adsorbing the tracer gas 1 and the VOCs 3 radiated from the building material and the like, As shown in FIG. 1, similarly to the tracer gas diffusion device 2, the device is suspended at a predetermined height position in the measurement chamber R and disposed. The adsorbing device 4 only needs to be capable of reliably adsorbing the tracer gas 1 and the VOCs 3. When the tracer gas releasing device 2 is a passive device, it is used for measuring the indoor concentration of formaldehyde. When the tracer gas dissipating device 2 is an active device, it is an existing active type adsorption device. Next, a method of measuring the indoor concentration and the amount of ventilation according to the present embodiment will be described. First, as shown in FIG. 1, the openings of the windows, doors, etc. of the measurement chamber R are opened,
The outside air and the air quality in the measurement chamber R are made substantially uniform. When the tracer gas dispersing device 2 and the adsorbing device 4 are passive devices, the openings of the windows and doors of the measuring chamber R are closed, and then the tracer gas dispersing device 2 and the tracer gas 1 are removed. And the tracer gas 1 and the VOCs 3 are adsorbed on the adsorption device 4 after the concentration of the tracer gas 1 is equilibrated. When the tracer gas diffusion device 2 and the adsorption device 4 are active devices, the openings of the windows and doors of the measuring chamber R are closed, and then the tracer gas diffusion device 2 and the tracer After 5 hours have passed after the gas 1 has been diffused, the tracer gas 1 and the VOCs 3 are adsorbed on the adsorbing device 4 over 30 minutes. When the tracer gas 1 is diffused, it is desirable to uniformly diffuse the tracer gas 1 throughout the measurement chamber R. When it is determined that the tracer gas 1 needs to be diffused, a small fan (not shown) is used. The tracer gas 1 is diffused into the measurement chamber R so as to be homogeneous using a diffusion device such as the above. Then, the tracer gas 1 and the VOCs 3 are adsorbed on the adsorber 4 for quantitative analysis. The means for quantitative analysis is not particularly limited, but measures the air concentration of the tracer gas 1 and the VOCs 3 in microgram units. Next, the ventilation volume per unit time of the measurement chamber R is calculated from the air concentration of the tracer gas 1 measured as described above. The ventilation volume of the measurement room R is
The amount of radiation of the tracer gas 1
Calculated by dividing by the indoor concentration of If the tracer gas 1 is a gas existing in the atmosphere, the indoor concentration of the tracer gas 1 is a difference obtained by subtracting the outside air concentration at the time of measurement from the measured indoor concentration of the measurement room R,
When determining the indoor concentration of the tracer gas 1, the outside air concentration at the time of measurement must be measured. However, in this embodiment, since the tracer gas 1 is a gas that does not exist in the atmosphere, the tracer gas 1 The indoor concentration can be obtained only from the air concentration of the tracer gas 1. Then, the amount of VOCs 3 radiated is determined using the amount of radiation of the tracer gas 1 and the amount of ventilation of the measurement chamber R obtained from the concentration of the tracer gas 1 in the air. As described above, according to the first aspect of the present invention,
The ventilation volume measurement and chemical substance emission amount calculation method described in
A measurement method for measuring the ventilation amount of a measurement room at the same time as measuring the indoor concentration of a chemical substance such as a volatile organic compound emitted from a building material or the like in the measurement room, and a process of dispersing a tracer gas into the measurement room. A step of adsorbing the emitted tracer gas and chemical substances such as volatile organic compounds emitted from building materials and the like in the measurement chamber, and a step of quantitatively analyzing the adsorbed tracer gas and the chemical substance. Therefore, tracer gas is supplied for a predetermined time,
The tracer gas is adsorbed together with the chemical substances such as volatile organic compounds and the tracer gas is adsorbed at a predetermined amount, and the amount of tracer gas deposited is measured. The ventilation volume of the measurement chamber can be measured, and the ventilation volume measured by the tracer gas is multiplied by the indoor concentration of the volatile organic compound or the like to easily remove the volatile organic compound or the like. There is an advantage that the amount of radiation can be calculated. As described above, it is only necessary to adsorb the tracer gas by the same method as that for adsorbing the volatile organic compound and perform quantitative analysis, so that the ventilation volume of the measurement room can be measured without requiring a large-scale facility. There is an advantage. Therefore, there is an advantage that the emission characteristics of a chemical substance such as a volatile organic compound can be easily and inexpensively grasped without requiring a large-scale facility. Further, there is an advantage that the present invention can be used even when only the ventilation volume of the measurement room is measured.

【図面の簡単な説明】 【図1】本発明の実施の形態の一例を示す模式図であ
る。 【符号の説明】 1 トレーサーガス 2 トレーサーガス放散装置 3 揮発性有機化合物 4 吸着装置 R 測定室
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing an example of an embodiment of the present invention. [Description of Signs] 1 Tracer gas 2 Tracer gas emission device 3 Volatile organic compound 4 Adsorption device R Measurement room

Claims (1)

【特許請求の範囲】 【請求項1】 測定室内の建築材料等から放散される揮
発性有機化合物等の化学物質の室内濃度の測定と同時
に、測定室の換気量を測定する測定方法であって、 測定室内にトレーサーガスを放散させる工程と、 該放散されたトレーサーガスおよび測定室内の建築材料
等から放散された揮発性有機化合物等の化学物質を吸着
させる工程と、 これら吸着されたトレーサーガスおよび前記化学物質を
定量分析する工程と、からなることを特徴とする換気量
測定および化学物質放散量算出方法。
Claims: 1. A measuring method for measuring the indoor concentration of a chemical substance such as a volatile organic compound emitted from a building material or the like in a measuring room and simultaneously measuring the ventilation volume of the measuring room. Dispersing the tracer gas into the measurement chamber; adsorbing the emitted tracer gas and chemical substances such as volatile organic compounds emitted from building materials and the like in the measurement chamber; A method for quantitatively analyzing the chemical substance, the method comprising: measuring ventilation and calculating a chemical substance emission amount.
JP2001229074A 2001-07-30 2001-07-30 Method of measuring amount of ventilation and calculating diffused amount of chemical material Pending JP2003042491A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007010363A (en) * 2005-06-28 2007-01-18 Asahi Kasei Homes Kk Method for measuring ventilation amount in indoor space
JP2012127740A (en) * 2010-12-14 2012-07-05 Japan Environment Research Co Ltd Removal efficiency measurement system
JP2012127739A (en) * 2010-12-14 2012-07-05 Japan Environment Research Co Ltd Removal efficiency measurement system
CN108593247A (en) * 2018-04-08 2018-09-28 上海理工大学 The method of available ventilation amount between four series connection rooms of measurement
JP2018185173A (en) * 2017-04-24 2018-11-22 三浦工業株式会社 Correction method for collection rate of volatile organic compound

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007010363A (en) * 2005-06-28 2007-01-18 Asahi Kasei Homes Kk Method for measuring ventilation amount in indoor space
JP2012127740A (en) * 2010-12-14 2012-07-05 Japan Environment Research Co Ltd Removal efficiency measurement system
JP2012127739A (en) * 2010-12-14 2012-07-05 Japan Environment Research Co Ltd Removal efficiency measurement system
JP2018185173A (en) * 2017-04-24 2018-11-22 三浦工業株式会社 Correction method for collection rate of volatile organic compound
CN108593247A (en) * 2018-04-08 2018-09-28 上海理工大学 The method of available ventilation amount between four series connection rooms of measurement

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