JPH0772137A - Gas exposure indicator and preservation container thereof - Google Patents
Gas exposure indicator and preservation container thereofInfo
- Publication number
- JPH0772137A JPH0772137A JP21947093A JP21947093A JPH0772137A JP H0772137 A JPH0772137 A JP H0772137A JP 21947093 A JP21947093 A JP 21947093A JP 21947093 A JP21947093 A JP 21947093A JP H0772137 A JPH0772137 A JP H0772137A
- Authority
- JP
- Japan
- Prior art keywords
- indicator
- gas
- ozone
- layer
- gas exposure
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、特定の種類のガスに暴
露されて変色するガス暴露インジケータ及びその保存容
器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas exposure indicator which changes color when exposed to a specific type of gas and its storage container.
【０００２】[0002]
【従来の技術】近年、病院内での感染（院内感染）、特
にＭＲＳＡ（マーサ）による院内感染が大きな社会問題
となっている。このような院内感染を防止するためオゾ
ンを用いた消毒装置の開発が行われている。2. Description of the Related Art In recent years, nosocomial infections in hospitals (nosocomial infections), particularly nosocomial infections due to MRSA (Martha), have become a major social problem. In order to prevent such nosocomial infections, a disinfection device using ozone is being developed.
【０００３】この種の装置は、オゾンを室内や容器内に
供給した後、触媒からなるオゾンキラーでオゾンを分解
するようになっている。In this type of apparatus, after supplying ozone into a room or a container, ozone is decomposed by an ozone killer composed of a catalyst.
【０００４】ところでオゾンは強力な殺菌消毒力を有す
る反面、微量でも長時間吸入すると人体に有害な気体で
ある。このため、オゾンを用いた消毒装置を使用する場
合には、使用後の残留オゾンの強度やどれだけオゾン処
理されたか等を検知する必要がある。On the other hand, ozone has a strong sterilizing and disinfecting power, but on the other hand, even a trace amount of ozone is a harmful gas to the human body when inhaled for a long time. Therefore, when a disinfection device using ozone is used, it is necessary to detect the intensity of residual ozone after use, how much ozone has been treated, and the like.
【０００５】オゾンの強度の検知にはオゾンモニタが使
用されるが、オゾンモニタは高価であり、かつ、携帯し
て使用するには不便な面があるので、低コストで携帯が
容易なガス暴露インジケータが開発されている。An ozone monitor is used to detect the intensity of ozone, but since the ozone monitor is expensive and inconvenient to carry and use, it is a low cost and easy to carry gas exposure. Indicators are being developed.
【０００６】図４は特定の種類のガスとしてのオゾンガ
スを検知する従来のオゾンガス暴露インジケータの概略
図である。FIG. 4 is a schematic diagram of a conventional ozone gas exposure indicator for detecting ozone gas as a specific type of gas.
【０００７】同図に示すようにオゾンガス暴露インジケ
ータ１は、オゾンガスに暴露されて変色する細長のヨウ
化カリウム澱粉紙２が、一端が開口した暴露部３を有す
るほぼ細長の袋状の透明フィルム４内に設けられ、この
透明フィルム４上に目盛り５が記されている。As shown in FIG. 1, an ozone gas exposure indicator 1 is a substantially elongated bag-shaped transparent film 4 having an elongated potassium iodide starch paper 2 that changes color when exposed to ozone gas, and an exposed portion 3 having one end opened. A scale 5 is provided on the transparent film 4 provided inside.
【０００８】このようなオゾンガス暴露インジケータ１
を、オゾンを含む雰囲気内に一定時間放置すると、オゾ
ンとヨウ化カリウムとが呈色反応を示し、オゾン強度に
応じて変色域が広がる。測定者はこのときの変色域の境
界が指示する目盛り５を読むことによりオゾン強度を検
知することができる。Such an ozone gas exposure indicator 1
When is left for a certain period of time in an atmosphere containing ozone, ozone and potassium iodide show a color reaction, and the color change range is widened according to the ozone intensity. The measurer can detect the ozone intensity by reading the scale 5 indicated by the boundary of the color change area at this time.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、ヨウ化
カリウム澱粉紙とオゾンとの反応には水分が必要なた
め、ヨウ化カリウム澱粉紙を水にぬらした状態で使用す
るようになっている。これは、ヨウ化カリウム澱粉紙
が、水分が十分な場合には白色から青紫色に変色する
が、水分が不十分な場合には白色から淡い茶褐色に変色
し、変色域の境界が不明瞭になってしまうためである。However, since the reaction between potassium iodide starch paper and ozone requires water, the potassium iodide starch paper is used while being wet with water. This is because potassium iodide starch paper discolors from white to bluish purple when the water content is sufficient, but when the water content is insufficient, it discolors from white to a light brown color, making the boundaries of the discolored area unclear. This is because
【００１０】また、オゾン強度が高い雰囲気内でオゾン
強度を測定する場合には、インジケータの検出感度が低
いとオゾンを検知する前に測定者が中毒を起こす等の危
険にさらされてしまう。Further, when the ozone intensity is measured in an atmosphere having a high ozone intensity, if the detection sensitivity of the indicator is low, the measurer may be poisoned before the ozone is detected.
【００１１】そこで、本発明の目的は、上記課題を解決
し、高感度で、しかもインジケータの変色域を明瞭にす
るための水を補給しなくてもよいガス暴露インジケータ
及びその保存容器を提供することにある。Therefore, an object of the present invention is to solve the above problems and provide a gas exposure indicator and a storage container for the gas exposure indicator, which have high sensitivity and which do not require replenishment of water for clarifying the color change range of the indicator. Especially.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に本発明は、一端が開口したほぼ細長の袋状の透明部材
内に、特定ガスと反応して変色する指示薬層を設けると
共に、一端からの特定ガスを指示薬層に拡散させる拡散
層を設けたものである。In order to achieve the above-mentioned object, the present invention provides an indicator layer that changes color by reacting with a specific gas in a substantially elongated bag-shaped transparent member having one end opened and one end A diffusion layer for diffusing the specific gas from the indicator layer into the indicator layer is provided.
【００１３】また、本発明は上記構成に加えてさらに、
拡散層を、空間又は多孔性物質で形成したものである。In addition to the above construction, the present invention further comprises:
The diffusion layer is formed of a space or a porous material.
【００１４】本発明は上記構成に加えてさらに、指示薬
層が、水分を保持する保湿材を有するものである。In the present invention, in addition to the above constitution, the indicator layer further has a moisturizing material for retaining water.
【００１５】本発明は、一端が開口したほぼ細長の袋状
の透明部材内に、特定ガスと反応して変色する指示薬層
を設けたガス暴露インジケータを保存するための保存容
器において、容器本体と開閉自在な蓋とからなり、容器
本体内底部に指示薬の水溶液が含浸された保液部材を設
けたものである。The present invention relates to a storage container for storing a gas exposure indicator, which comprises an indicator layer which is discolored in response to a specific gas in a transparent member having a substantially slender bag shape with one end opened. A lid that can be opened and closed is provided, and a liquid retaining member impregnated with an aqueous solution of an indicator is provided at the bottom of the container body.
【００１６】[0016]
【作用】上記構成によれば、一端から透明部材内に導入
された特定ガスが拡散層で拡散しつつ指示薬層と接触す
るので、特定ガスが拡散層内を拡散する速度に応じて指
示薬層が変色し、高感度でガスの暴露量を検知すること
ができる。According to the above construction, since the specific gas introduced into the transparent member from one end contacts the indicator layer while diffusing in the diffusion layer, the indicator layer is formed depending on the speed at which the specific gas diffuses in the diffusion layer. It changes color and can detect gas exposure with high sensitivity.
【００１７】また、上記指示薬層が、水分を保持する保
湿材を有する構成によって、水分を補給する必要がなく
なり、しかも指示薬と特定ガスとの反応が促進され、変
色域が明瞭となる。Further, since the indicator layer has a moisturizing material for retaining water, it is not necessary to replenish the moisture, and further, the reaction between the indicator and the specific gas is promoted and the discolored area becomes clear.
【００１８】さらに、指示薬の水溶液が含浸された保液
部材に、ガス暴露インジケータの開口端を接触させるこ
とにより、指示薬層に十分な水分が補給され、容器本体
の蓋を閉めることにより容器本体が密閉され水分が外部
に蒸発するのが防止される。Furthermore, by bringing the open end of the gas exposure indicator into contact with the liquid retaining member impregnated with the aqueous solution of the indicator, the indicator layer is replenished with sufficient water, and the container body is closed by closing the lid of the container body. It is sealed to prevent moisture from evaporating to the outside.
【００１９】[0019]
【実施例】以下、本発明の一実施例を添付図面に基づい
て詳述する。尚、本実施例では特定ガスがオゾンガスの
場合で説明する。An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In this embodiment, the case where the specific gas is ozone gas will be described.
【００２０】図１（ａ）は本発明のガス暴露インジケー
タの一実施例の平面図であり、図１（ｂ）はそのＡ−Ａ
線断面図である。FIG. 1 (a) is a plan view of an embodiment of the gas exposure indicator of the present invention, and FIG. 1 (b) is its A--A line.
It is a line sectional view.
【００２１】図１（ａ）及び図１（ｂ）に示すようにガ
ス暴露インジケータは、セロハンテープ１０の上に、こ
のセロハンテープ１０の幅及び長さより小さい細長のろ
紙１１を、セロハンテープ１０の一端（図の左側）に揃
うように貼り、このろ紙１１の上に、オゾンと反応して
変色するヨウ化カリウム澱粉と水分を保持するシリカゲ
ルとからなる指示薬層１２を塗布し、指示薬層１２及び
セロハンテープ１０の上に、さらにセロハンテープ１３
を貼り合わせてほぼ細長の袋状にしたものである。As shown in FIGS. 1 (a) and 1 (b), the gas exposure indicator comprises a cellophane tape 10 on which a slender filter paper 11 smaller than the width and length of the cellophane tape 10 is attached. The indicator layer 12 composed of potassium iodide starch that changes color by reacting with ozone and silica gel that retains water is applied on the filter paper 11 so that they are aligned at one end (on the left side of the figure). Cellophane tape 13 on top of cellophane tape 10
Are attached to each other to form a slender bag.
【００２２】このような構造を有しているため、ガス暴
露インジケータの一端は、ろ紙１１及び指示薬層１２が
露出している（この露出した部分を暴露部１４とい
う）。セロハンテープ１３の上には、暴露部１４の境界
線を基準とした目盛り１５が記されており、オゾンの暴
露量を示すようになっている。Due to the above structure, the filter paper 11 and the indicator layer 12 are exposed at one end of the gas exposure indicator (this exposed portion is referred to as an exposed portion 14). A scale 15 based on the boundary line of the exposed portion 14 is written on the cellophane tape 13 to indicate the exposure amount of ozone.
【００２３】次に実施例の作用を述べる。Next, the operation of the embodiment will be described.
【００２４】ガス暴露インジケータを所定の時間だけオ
ゾンガス雰囲気内にさらすと、オゾンガスが暴露部１４
から導入されてろ紙１１内に拡散すると共に、指示薬層
１２と接触してヨウ化カリウム澱粉反応を生じて白から
青紫色に変色する。この変色域は、オゾンガスがろ紙１
１内を拡散する速度に応じて暴露部１４からセロハンテ
ープ１０、１３の他端（図の右側）に向かって変色する
ので短時間で変色する（ガスが拡散する速度は指示薬層
１２中よりろ紙１１中の方が速いためである。また、従
来は指示薬層の内部だけをオゾンガスが拡散するため拡
散速度、すなわち変色速度は遅かった）。When the gas exposure indicator is exposed to the ozone gas atmosphere for a predetermined time, the ozone gas is exposed to the exposed portion 14
Is introduced into the filter paper 11 and diffuses into the filter paper 11. At the same time, it contacts the indicator layer 12 to cause a potassium iodide starch reaction to change the color from white to blue-purple. Ozone gas filter paper 1
The color changes from the exposed part 14 to the other end of the cellophane tapes 10 and 13 (right side in the figure) according to the speed of diffusion in 1 so that the color changes in a short time. This is because the rate is faster in the case of No. 11. Further, conventionally, the diffusion rate, that is, the discoloration rate was slow because the ozone gas diffused only inside the indicator layer).
【００２５】指示薬層１２は、所定の時間内にインジケ
ータ内に導入されたオゾン分だけ変色するが、従来より
短時間で変色域が広がる。すなわち測定者は、高感度で
オゾン強度を検知することができる。The indicator layer 12 discolors by the amount of ozone introduced into the indicator within a predetermined time, but the discoloration range expands in a shorter time than before. That is, the measurer can detect the ozone intensity with high sensitivity.
【００２６】また、指示薬層１２は、水分を保持するシ
リカゲルを有しているので、水分を補給する必要がなく
なり、しかもヨウ化カリウム澱粉とオゾンとの反応（化
１で示す）が促進され、白色から青紫色への変色が明瞭
となる。Further, since the indicator layer 12 has the silica gel which retains water, it is not necessary to replenish the water, and the reaction between potassium iodide starch and ozone (shown in Chemical formula 1) is promoted, The color change from white to blue-purple becomes clear.
【００２７】[0027]
【化１】Ｈ2 Ｏ＋２ＫＩ＋Ｏ3 →２ＫＯＨ＋Ｏ2 ＋Ｉ2 以上において本実施例によれば、一端が開口したほぼ細
長の袋状のセロハンテープ１０、１３内に、オゾンガス
と反応して変色する指示薬層１２を設けると共に、一端
からのオゾンガスを指示薬層１２に拡散させるろ紙１１
を設けたので、高感度で、しかもヨウ化カリウム澱粉の
変色域を明瞭にするための水を補給しなくてもよいガス
暴露インジケータを実現することができる。## STR00001 ## H 2 O + 2KI + O 3 → 2KOH + O 2 + I 2 According to the present embodiment, an indicator layer 12 that changes color in response to ozone gas is provided in a substantially elongated bag-shaped cellophane tape 10, 13 having one end opened. And a filter paper 11 for diffusing ozone gas from one end into the indicator layer 12
Since the above is provided, it is possible to realize a gas exposure indicator which has high sensitivity and which does not require supplementation of water for clarifying the discolored region of potassium iodide starch.
【００２８】尚、本実施例では拡散層としてろ紙を用い
たが、これに限定されるものではなく樹脂等を用いても
よく、透明部材にセロハンテープを用いたがこれに限定
されるものではない。また、保湿材としてシリカゲルを
用いたが、これに限定されるものではなく、水分を保持
することができるなら高吸水性ポリマを用いてもよい。
さらに、指示薬としてヨウ化カリウム澱粉を用いたが、
これに限定されずインジゴカルミンを用いてもよい。こ
の場合の反応式は化２で表され、指示薬層の色は青色か
ら白色に変色する。In this embodiment, the filter paper is used as the diffusion layer. However, the present invention is not limited to this, and resin or the like may be used. Cellophane tape is used as the transparent member, but the present invention is not limited to this. Absent. Further, although silica gel was used as the moisturizing material, it is not limited to this and a super absorbent polymer may be used as long as it can retain water.
Furthermore, although potassium iodide starch was used as an indicator,
The present invention is not limited to this, and indigo carmine may be used. The reaction formula in this case is represented by Chemical Formula 2, and the color of the indicator layer changes from blue to white.
【００２９】[0029]
【化２】 [Chemical 2]
【００３０】図２（ａ）は本発明のガス暴露インジケー
タの他の実施例の平面図であり、図２（ｂ）は図２
（ａ）のＢ−Ｂ線断面図であり、図２（ｃ）は図２
（ａ）のＣ−Ｃ線断面図である。FIG. 2 (a) is a plan view of another embodiment of the gas exposure indicator of the present invention, and FIG. 2 (b) is FIG.
2B is a sectional view taken along line BB in FIG. 2A, and FIG.
It is the CC sectional view taken on the line of (a).
【００３１】図１（ａ）、（ｂ）に示した実施例との相
違点は、透明部材にプラスチックを用い、拡散層を空間
で形成した点である。The difference from the embodiment shown in FIGS. 1A and 1B is that the transparent member is made of plastic and the diffusion layer is formed in space.
【００３２】図２（ａ）〜（ｃ）に示すようにガス暴露
インジケータは、細長のプラスチック板２０の上に、プ
ラスチックからなるほぼコの字形状のサポータ２１を貼
り合わせると共にプラスチック板２０上にヨウ化カリウ
ム澱粉２２を塗布し、プラスチック板２０とほぼ同じ大
きさのプラスチック板２３をサポータ２１上に貼り合わ
せた構造となっている。プラスチック板２３には前述と
同様に目盛り２６が記されている。As shown in FIGS. 2 (a) to 2 (c), the gas exposure indicator is such that a substantially U-shaped supporter 21 made of plastic is attached onto an elongated plastic plate 20, and the gas exposure indicator is attached onto the plastic plate 20. It has a structure in which potassium iodide starch 22 is applied and a plastic plate 23 having substantially the same size as the plastic plate 20 is attached on the supporter 21. The scale 26 is marked on the plastic plate 23 as described above.
【００３３】ガス暴露インジケータはこのような構造を
有しているため、一端（図の左側）が開口されて暴露部
２４が形成されると共に、ヨウ化カリウム澱粉２２の上
には空間からなる拡散層２５が形成される。このため、
図１に示したガス暴露インジケータに比べてろ紙１１が
ないので、暴露部２４から内部に導入されたオゾンガス
がヨウ化カリウム澱粉２２上を拡散する際に抵抗となる
ものがなく拡散速度が速くなり、より短時間でヨウ化カ
リウム澱粉２２が変色する（従来の約１０倍の速さ）。
このため測定者はより高感度でオゾンの強度を検知する
ことができる。Since the gas exposure indicator has such a structure, one end (the left side of the drawing) is opened to form an exposed portion 24, and a diffusion space consisting of a space is formed above the potassium iodide starch 22. Layer 25 is formed. For this reason,
Compared with the gas exposure indicator shown in FIG. 1, since there is no filter paper 11, there is no resistance when ozone gas introduced into the interior from the exposure section 24 diffuses on the potassium iodide starch 22, and the diffusion speed becomes faster. , The potassium iodide starch 22 is discolored in a shorter time (about 10 times faster than conventional).
Therefore, the measurer can detect the ozone intensity with higher sensitivity.
【００３４】図３は本発明のガス暴露インジケータの保
存容器の断面図である。FIG. 3 is a sectional view of the storage container of the gas exposure indicator of the present invention.
【００３５】同図に示すように、ガス暴露インジケータ
の保存容器は、ガラスびん３０と開閉自在な蓋３１とか
らなり、ガラスびん３０内底部にヨウ化カリウム澱粉の
水溶液が含浸された綿（指示薬の水溶液を保持できるの
であればスポンジ等の多孔質部材や繊維体でもよい）３
２を設けたものである。As shown in the figure, the storage container for the gas exposure indicator comprises a glass bottle 30 and an openable / closable lid 31, and the inside bottom of the glass bottle 30 is made of cotton (indicator) impregnated with an aqueous solution of potassium iodide starch. Porous member such as sponge or fibrous body may be used as long as it can hold the aqueous solution) 3
2 is provided.
【００３６】このような保存容器内に例えば図４に示し
た従来のガス暴露インジケータを、その暴露部３と綿３
２とが接触するように収容することにより、指示薬層１
２に十分な水分が補給される。また、ガラスびん３０か
ら容易にガス暴露インジケータを取り出すことができ、
この蓋３１を閉めることによりガラスびん３０が密閉さ
れ水分が外部に蒸発するのが防止される。さらに、従来
のガス暴露インジケータだけでなく、図１や図２に示し
たガス暴露インジケータを保存してもよいのはいうまで
もない。In such a storage container, for example, the conventional gas exposure indicator shown in FIG.
The indicator layer 1 is housed so that the indicator layer 1 is in contact with the indicator layer 1.
2 is replenished with sufficient water. Further, the gas exposure indicator can be easily taken out from the glass bottle 30,
By closing the lid 31, the glass bottle 30 is hermetically closed and water is prevented from evaporating to the outside. Further, it goes without saying that the gas exposure indicator shown in FIGS. 1 and 2 may be stored in addition to the conventional gas exposure indicator.
【００３７】尚、本実施例において、検知すべき特定ガ
スとしてオゾンガスの場合で説明したが、これに限定さ
れるものではなく他の種類の指示薬を用い、その指示薬
に対応したガスを検知するようにしてもよい。以下に他
のガスを検知する場合の色の変化と化学式を述べる。In the present embodiment, the case where ozone gas is used as the specific gas to be detected has been described, but the present invention is not limited to this, and another type of indicator may be used to detect the gas corresponding to the indicator. You may The color changes and chemical formulas when detecting other gases are described below.
【００３８】(1) アクリロニトリルを含むガス(1) Gas containing acrylonitrile
【００３９】[0039]
【化３】 ＣＨ2 ＝ＣＨＣＮ＋Ｃｒ6+＋Ｈ2 ＳＯ4 →Ｃｒ3+ 橙色→黒緑色（酸化クロムが還元される） (2) アセチレンCH 2 = CHCN + Cr 6+ + H 2 SO 4 → Cr 3 + orange → black green (chromium oxide is reduced) (2) Acetylene
【００４０】[0040]
【化４】 [Chemical 4]
【００４１】淡黄色→褐青色（モリブデン酸塩が還元さ
れ、モリブデン青を生成する） (3) アセトンを含むガスLight yellow → brown blue (molybdate is reduced to form molybdenum blue) (3) A gas containing acetone
【００４２】[0042]
【化５】ＣＨ3 ＣＯＣＨ3 ＋Ｃｒ6+→Ｃｒ3+ 橙色→こげ茶色（酸化クロムが還元される） (4) 亜硫酸ガス[Chemical formula 5] CH 3 COCH 3 + Cr 6+ → Cr 3+ orange → dark brown (chromium oxide is reduced) (4) Sulfurous acid gas
【００４３】[0043]
【化６】ＳＯ2 ＋Ｃｒ6+＋Ｈ2 ＳＯ4 →Ｃｒ3 黄色→青色（重クロム酸塩が還元される） (5) 一酸化炭素 Embedded image SO 2 + Cr 6+ + H 2 SO 4 → Cr 3 yellow → blue (dichromate is reduced) (5) Carbon monoxide
【００４４】[0044]
【化７】ＣＯ＋Ｉ2 Ｏ5 ＋Ｈ2 ＳＯ4 →Ｉ2 白色→茶褐色（五酸化ヨウ素が還元される） (6) エタノールを含むガス[Chemical formula 7] CO + I 2 O 5 + H 2 SO 4 → I 2 white → brown brown (iodine pentoxide is reduced) (6) Gas containing ethanol
【００４５】[0045]
【化８】Ｃ2 Ｈ5 ＯＨ＋Ｃｒ6+＋Ｈ3 ＰＯ4 →Ｃｒ6+ 黄橙色→薄緑色（重クロム酸塩が還元される） (7) エチレン Embedded image C 2 H 5 OH + Cr 6+ + H 3 PO 4 → Cr 6 + yellow orange → light green (dichromate is reduced) (7) Ethylene
【００４６】[0046]
【化９】Ｈ2 ＝ＣＨ2 ＋ＰｄＳＯ4 ＋（ＮＨ4 ）2 Ｍｏ
Ｏ4 →Ｍｏ3 Ｏ8 淡黄色→青色（モリブデン酸塩が還元され、モリブデン
青を生成する） (8) 塩素Embedded image H 2 ═CH 2 + PdSO 4 + (NH 4 ) 2 Mo
O 4 → Mo 3 O 8 pale yellow → blue (molybdate is reduced to form molybdenum blue) (8) Chlorine
【００４７】[0047]
【化１０】 [Chemical 10]
【００４８】白色→黄橙色（オルトトリジンが酸化さ
れ、黄色ホロキノンを生成する） (9) キシレンを含むガスWhite to yellow-orange (orthotolidine is oxidized to produce yellow holoquinone) (9) Gas containing xylene
【００４９】[0049]
【化１１】 Ｃ6 Ｈ4 （ＣＨ3 ）2 ＋Ｉ2 Ｏ5 ＋Ｈ2 ＳＯ4 →Ｉ2 白色→褐色（五酸化ヨウ素と反応して、ヨウ素を遊離す
る） (10)二酸化窒素Embedded image C 6 H 4 (CH 3 ) 2 + I 2 O 5 + H 2 SO 4 → I 2 white → brown (reacts with iodine pentoxide to release iodine) (10) Nitrogen dioxide
【００５０】[0050]
【化１２】 [Chemical 12]
【００５１】白色→淡緑橙色（オルトトリジンと反応
し、ニトロソオルトトリジン（染料）を生成する） (11)二硫化炭素を含むガスWhite to light green orange (reacts with orthotolidine to form nitrosoorthotolidine (dye)) (11) Gas containing carbon disulfide
【００５２】[0052]
【化１３】 [Chemical 13]
【００５３】青紫色→白色（酸化剤で分解して亜硫酸ガ
スを発生させ、この亜硫酸ガスがテトラベース（染料）
を漂白する） (12)プロパンBlue-purple → white (decomposes with an oxidizing agent to generate sulfur dioxide, and this sulfur dioxide is tetrabase (dye)
Bleach) (12) Propane
【００５４】[0054]
【化１４】 ＣＨ3 ＣＨ2 ＣＨ3 ＋Ｃｒ6+＋Ｈ2 ＳＯ4 →Ｃｒ3+ 黄橙色→褐色（重クロム酸カリウムが還元される） (13)ホルムアルデヒドを含むガスCH 3 CH 2 CH 3 + Cr 6+ + H 2 SO 4 → Cr 3 + yellow orange → brown (potassium dichromate is reduced) (13) Gas containing formaldehyde
【００５５】[0055]
【化１５】 [Chemical 15]
【００５６】白色→橙褐色（芳香族化合物と反応して脱
水縮重合物を生成する） (14)塩素イオンを含むガスWhite → orange brown (reacts with an aromatic compound to form a dehydrated polycondensation product) (14) Gas containing chlorine ions
【００５７】[0057]
【化１６】Ｃｌ- ＋Ａｇ2 ＣｒＯ4 →ＡｇＣｌ 茶色→白色（クロム酸銀と反応して塩化銀を生成する）Embedded image Cl − + Ag 2 CrO 4 → AgCl brown → white (reacts with silver chromate to form silver chloride)
【００５８】[0058]
【発明の効果】以上要するに本発明によれば、次のよう
な優れた効果を発揮する。In summary, according to the present invention, the following excellent effects are exhibited.
【００５９】(1) 一端が開口したほぼ細長の袋状の透明
部材内に、特定ガスと反応して変色する指示薬層を設け
ると共に、一端からの特定ガスを指示薬層に拡散させる
拡散層を設けたので、高感度で、しかもインジケータの
変色域を明瞭にするための水を補給しなくてもよいガス
暴露インジケータを実現することができる。(1) An indicator layer that changes color by reacting with a specific gas is provided in a substantially elongated bag-shaped transparent member with one end opened, and a diffusion layer that diffuses the specific gas from one end into the indicator layer is provided. Therefore, it is possible to realize a gas exposure indicator which has high sensitivity and which does not require replenishment of water for clarifying the color change area of the indicator.
【００６０】(2) 容器本体と開閉自在な蓋とからなり、
容器本体内底部に指示薬の水溶液が含浸された保液部材
を設けたので、インジケータの変色域を明瞭にするため
の水を補給しなくてもよいガス暴露インジケータの保存
容器を実現することができる。(2) Consists of a container body and a lid that can be opened and closed,
Since the liquid retaining member in which the aqueous solution of the indicator is impregnated is provided on the inner bottom of the container body, it is possible to realize a storage container for the gas exposure indicator that does not need to be replenished with water for clarifying the discolored area of the indicator. .
【図１】（ａ）は本発明のガス暴露インジケータの一実
施例の平面図であり、（ｂ）はそのＡ−Ａ線断面図であ
る。FIG. 1 (a) is a plan view of an embodiment of a gas exposure indicator of the present invention, and FIG. 1 (b) is a sectional view taken along the line AA.
【図２】（ａ）は本発明のガス暴露インジケータの他の
実施例の平面図であり、（ｂ）は図２（ａ）のＢ−Ｂ線
断面図であり、（ｃ）は図２（ａ）のＣ−Ｃ線断面図で
ある。2A is a plan view of another embodiment of the gas exposure indicator of the present invention, FIG. 2B is a sectional view taken along line BB of FIG. 2A, and FIG. It is the CC sectional view taken on the line of (a).
【図３】本発明のガス暴露インジケータの保存容器の断
面図である。FIG. 3 is a sectional view of a storage container of the gas exposure indicator of the present invention.
【図４】従来のガス暴露インジケータの概略図である。FIG. 4 is a schematic diagram of a conventional gas exposure indicator.
１０、１３ 透明部材（セロハンテープ） １１ 拡散層（ろ紙） １２ 指示薬層（ヨウ化カリウム＋シリカゲル） 10, 13 Transparent member (cellophane tape) 11 Diffusion layer (filter paper) 12 Indicator layer (potassium iodide + silica gel)
Claims (4)
材内に、特定ガスと反応して変色する指示薬層を設ける
と共に、一端からの特定ガスを前記指示薬層に拡散させ
る拡散層を設けたことを特徴とするガス暴露インジケー
タ。1. An indicator layer that changes color by reacting with a specific gas is provided in a substantially elongated bag-shaped transparent member having one end opened, and a diffusion layer that diffuses the specific gas from one end into the indicator layer is provided. Gas exposure indicator characterized by
成したことを特徴とする請求項１記載のガス暴露インジ
ケータ。2. The gas exposure indicator according to claim 1, wherein the diffusion layer is formed of a space or a porous material.
を有することを特徴とする請求項１又は２記載のガス暴
露インジケータ。3. The gas exposure indicator according to claim 1, wherein the indicator layer has a moisturizing material that retains water.
材内に、特定ガスと反応して変色する指示薬層を設けた
ガス暴露インジケータを保存するための保存容器におい
て、容器本体と開閉自在な蓋とからなり、該容器本体内
底部に前記指示薬の水溶液が含浸された保液部材を設け
たことを特徴とするガス暴露インジケータの保存容器。4. A storage container for storing a gas exposure indicator having an indicator layer that changes color when reacted with a specific gas, in a substantially slender bag-shaped transparent member having one end opened, and can be opened and closed with the container body. A storage container for a gas exposure indicator, which is provided with a liquid-retaining member impregnated with an aqueous solution of the indicator at the inner bottom of the container body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21947093A JP3291861B2 (en) | 1993-09-03 | 1993-09-03 | Storage container for gas exposure indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21947093A JP3291861B2 (en) | 1993-09-03 | 1993-09-03 | Storage container for gas exposure indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0772137A true JPH0772137A (en) | 1995-03-17 |
| JP3291861B2 JP3291861B2 (en) | 2002-06-17 |
Family
ID=16735941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21947093A Expired - Fee Related JP3291861B2 (en) | 1993-09-03 | 1993-09-03 | Storage container for gas exposure indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3291861B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020015163A (en) * | 2000-08-21 | 2002-02-27 | 홍윤식 | Silica gel including mixed indicator and method for producing the same |
| US7364700B2 (en) | 2002-08-28 | 2008-04-29 | Nippon Telegraph And Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| JP2009063593A (en) * | 2004-08-11 | 2009-03-26 | Nippon Telegr & Teleph Corp <Ntt> | Ozone gas detecting element |
| JP2010266213A (en) * | 2009-05-12 | 2010-11-25 | Nippon Telegr & Teleph Corp <Ntt> | Toluene-detecting agent, toluene-detecting element, and toluene measurement method |
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| JP2019012020A (en) * | 2017-06-30 | 2019-01-24 | 株式会社熊平製作所 | Adsorptive member with indicator, and indicator used together with adsorptive member |
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-
1993
- 1993-09-03 JP JP21947093A patent/JP3291861B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020015163A (en) * | 2000-08-21 | 2002-02-27 | 홍윤식 | Silica gel including mixed indicator and method for producing the same |
| US7364700B2 (en) | 2002-08-28 | 2008-04-29 | Nippon Telegraph And Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| US7615192B2 (en) | 2002-08-28 | 2009-11-10 | Nippon Telegraph And Telephone Corporation | Ozone gas measurement apparatus |
| US7662636B2 (en) | 2002-08-28 | 2010-02-16 | Nippon Telegraph And Telephone Corporation | Ozone gas sensing element, detection apparatus, and measurement method |
| JP2009063593A (en) * | 2004-08-11 | 2009-03-26 | Nippon Telegr & Teleph Corp <Ntt> | Ozone gas detecting element |
| JP2010266213A (en) * | 2009-05-12 | 2010-11-25 | Nippon Telegr & Teleph Corp <Ntt> | Toluene-detecting agent, toluene-detecting element, and toluene measurement method |
| KR101498215B1 (en) * | 2013-06-27 | 2015-03-03 | 삼성중공업 주식회사 | Adsorption fabric canister |
| JP2015152514A (en) * | 2014-02-18 | 2015-08-24 | 独立行政法人国立高等専門学校機構 | Detecting material of environmental pollutants and method of manufacturing the same, and method of evaluating environmental pollution |
| JP2019012020A (en) * | 2017-06-30 | 2019-01-24 | 株式会社熊平製作所 | Adsorptive member with indicator, and indicator used together with adsorptive member |
| KR20200031201A (en) * | 2018-09-13 | 2020-03-24 | 주식회사 디바이스넷 | Sheet-type indicator attached onto a packaging materials for differentiation of thawing treatment of frozen food and food commodities |
| JP2021132480A (en) * | 2020-02-20 | 2021-09-09 | 株式会社日立製作所 | Motor system and discharge detection method |
| CN114635308A (en) * | 2022-03-28 | 2022-06-17 | 上海时宜品牌管理有限公司 | High-aberration formaldehyde detection test paper based on natural pigments |
| CN114635308B (en) * | 2022-03-28 | 2023-02-17 | 上海希望树生物科技有限公司 | High-aberration formaldehyde detection test paper based on natural pigments |
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