JPH0147743B2 - - Google Patents
Info
- Publication number
- JPH0147743B2 JPH0147743B2 JP9006580A JP9006580A JPH0147743B2 JP H0147743 B2 JPH0147743 B2 JP H0147743B2 JP 9006580 A JP9006580 A JP 9006580A JP 9006580 A JP9006580 A JP 9006580A JP H0147743 B2 JPH0147743 B2 JP H0147743B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- ampoule
- layer
- test tube
- glass tube
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 16
- 239000003708 ampul Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000003153 chemical reaction reagent Substances 0.000 claims description 13
- HJTAZXHBEBIQQX-UHFFFAOYSA-N 1,5-bis(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1CCl HJTAZXHBEBIQQX-UHFFFAOYSA-N 0.000 claims description 11
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 11
- 229910002027 silica gel Inorganic materials 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000000443 aerosol Substances 0.000 claims description 8
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000011701 zinc Substances 0.000 description 3
- FHJFUARGCJUJIL-UHFFFAOYSA-N 2-chloroethenylarsenic Chemical compound ClC=C[As] FHJFUARGCJUJIL-UHFFFAOYSA-N 0.000 description 2
- 150000001495 arsenic compounds Chemical class 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- GIKLTQKNOXNBNY-OWOJBTEDSA-N lewisite Chemical compound Cl\C=C\[As](Cl)Cl GIKLTQKNOXNBNY-OWOJBTEDSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910003771 Gold(I) chloride Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229940093920 gynecological arsenic compound Drugs 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical class Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
- G01N31/224—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for investigating presence of dangerous gases
Description
【発明の詳細な説明】
本発明は空気中の三酸化ヒ素・エーロゾルを測
定する試験管に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a test tube for measuring arsenic trioxide aerosol in air.
三酸化ヒ素はMAK−リスト1978によれば発癌
性作用物質である。この場合許容限界値（工業的
な規準濃度）として0.2mgAs2O3／m3の濃度が挙
げられる。 Arsenic trioxide is a carcinogenic agent according to MAK-List 1978. In this case, the permissible limit value (industrial standard concentration) is a concentration of 0.2 mgAs 2 O 3 /m 3 .
作業場の空気中におけるこの物質をひん繁にか
つ規則的に観察することは必要不可欠である。こ
れについては公知の試験管法が使用される。揮発
性並びに霧状のアルシン毒ガスを検出する公知の
方法は、高活性のシリカゲル層の上流に無機又は
有機の繊維物質、例えばガラス綿セルロース、ア
スベストから成るフイルターが取り付けられてい
る試験管を利用する。空気試料が通過する際、こ
れに含まれる霧状のアルシンがフイルターに保留
され、一方揮発性アルシンはシリカゲルにより固
着される。次いで試薬を濃塩酸に溶けた塩化錫
溶液の形で試験管に通す。この場合繊維フイルタ
ーにより保留された霧滴は試薬により連行され、
シリカゲル層に洗い流される。アルシン毒ガスは
シリカゲル上で試薬と反応する。この方法による
測定は１m3中アルシン毒ガス５mgの指示感度で定
量的に検出し得るにすぎない（西ドイツ特許第
742689号明細書）。 Frequent and regular monitoring of this substance in the workplace air is essential. The known test tube method is used for this. A known method for detecting volatile as well as atomized arsine poisonous gas makes use of a test tube in which a filter consisting of an inorganic or organic fibrous material, such as glass cotton cellulose, asbestos, is fitted upstream of a layer of highly active silica gel. . As the air sample passes through, the arsine it contains is retained in the filter, while the volatile arsine is fixed by the silica gel. The reagent is then passed through the test tube in the form of a tin chloride solution in concentrated hydrochloric acid. In this case, the mist droplets retained by the fiber filter are entrained by the reagent,
washed away into the silica gel layer. Arsine poison gas reacts with reagents on silica gel. Measurement using this method can only quantitatively detect arsine poisonous gas with an indicated sensitivity of 5 mg in 1 m 3 (West German Patent No.
742689 specification).
クロルビニルアルシン（ルイサイト）を検出す
る他の公知の試験管は検査すべき空気の流動方向
に塩酸で満たされたアンプル、金属粉末例えば亜
鉛末、アルミニウム末又はマグネシウム末等を塗
布された担持材から成る層、アルカリガラス砂礫
等から成る表面活性層及びヒ化水素用の、例えば
塩化金の溶液で含浸されたシリカゲルのような公
知の検出試薬から成る指示層を含む。クロルビニ
ルアルシンを測定するには試験管先端を折り取つ
た後検査すべき空気を試験管に吸収させる。空気
がルイサイトを含む場合、これはヒ素化合物の形
成下に表面活性層内で分離される。予め規定され
た空気量を吸収した後、アンプルを試験管壁に設
けられた破砕溝を介して破壊するが、なお少量の
空気と共にその内容物が塩酸蒸気として金属粉末
に結合する。ここで生じた水素は析出したヒ素化
合物と反応してヒ化水素となり、指示層を公知方
法で着色する（西ドイツ特許第1140749号）。 Other known test tubes for detecting chlorvinylarsine (Lewisite) include an ampoule filled with hydrochloric acid in the direction of flow of the air to be tested, a support material coated with a metal powder, such as zinc, aluminum or magnesium powder. a surface active layer of alkali glass gravel or the like and an indicator layer of a known detection reagent for hydrogen arsenide, such as silica gel impregnated with a solution of gold chloride. To measure chlorvinylarsine, the tip of the test tube is broken off and the air to be tested is absorbed into the test tube. If the air contains lewisite, this is separated in the surface-active layer with the formation of arsenic compounds. After absorbing a predefined amount of air, the ampoule is broken through a crushing groove provided in the test tube wall, but its contents, together with still a small amount of air, bind to the metal powder as hydrochloric acid vapor. The hydrogen generated here reacts with the precipitated arsenic compound to form hydrogen arsenide, which colors the indicator layer in a known manner (West German Patent No. 1140749).
双方の公知試験管法は、空気中の三酸化ヒ素−
エーロゾルを定量的に規定するのには適していな
い。その感度は三酸化ヒ素用MAK値リストに示
された限界値＝0.2mg／m3の範囲内で測定するに
は不十分である。従来この限界値範囲内での定量
測定は費用の嵩で実験室法で行なわなければなら
なかつた。 Both known test tube methods use arsenic trioxide in air.
It is not suitable for quantitatively defining aerosols. Its sensitivity is insufficient to measure within the limits indicated in the list of MAK values for arsenic trioxide = 0.2 mg/m 3 . Conventionally, quantitative measurements within this limit range have had to be carried out by laboratory methods due to the high cost.
本発明の課題は、公知の様式及び方法で作業場
において特殊な準備を施すことなく空気を監視す
ることのできる、MAK−限界値0.2mg／m3の範囲
内で空気中の三酸化ヒ素を測定するための試験管
である。 The task of the present invention is to determine arsenic trioxide in air within the MAK limit value 0.2 mg/m 3 , making it possible to monitor the air in the workplace without special preparations in a known manner and manner. It is a test tube for
この課題は、検査すべき空気の貫流方向で見て
指示層の上流に配置されまた折り取り可能の先端
を備えたガラス管によつて包囲されている、試薬
を含むアンプルを用いて空気中の三酸化ヒ素・エ
ーロゾルを測定する形式の、ガラス管を折つた際
にアンプルが破壊される、収縮ホースで覆われた
破断個所を有する試験管において、ガラス管が検
査すべき空気の貫流方向に向つて順次に、稀硫酸
が満たされている試薬アンプル、ガラス管壁の端
部に接続された亜鉛末で含浸された濾紙、粒状の
シリカゲルから成る集積層、粒状の不活性石英か
ら成る分離層及び塩化金で含浸された粒状のシリ
カゲルから成る指示層を含むことによつて解決さ
れる。 This task consists of using an ampoule containing a reagent, which is placed upstream of the indicator layer, seen in the flow direction of the air to be tested, and is surrounded by a glass tube with a breakable tip. In test tubes for measuring arsenic trioxide aerosols, the ampoule is broken when the glass tube is broken, and the break point is covered with a shrink hose. A reagent ampoule filled with dilute sulfuric acid, a filter paper impregnated with zinc dust connected to the end of the glass tube wall, an accumulation layer of granular silica gel, a separating layer of granular inert quartz and The solution is to include an indicator layer consisting of granular silica gel impregnated with gold chloride.
この解決手段は有利に試験管法に利用される。
本発明による試験管はすべての必要な部品を一つ
の使用具内にまとめることができる。試験管法は
基本的には一般に公知であり、簡単な形式及び方
法で作業場を監視するための空気検査を実施する
ことができる。測定のため第１の作業行程では試
験管の先端を開き、次いで公知の吸引ポンプで予
め規定された量の検査すべき空気を試験管に通
す。同様の後続作業過程で試薬アンプルを折り、
次いでその内容物を吸引ポンプで分離層に吸い上
げる。検査空気中に測定すべき三酸化ヒ素−エー
ロゾルが存在する場合、ヒ化水素への還元が生
じ、次いでこれが指示層を着色する。着色の長さ
は析出された三酸化ヒ素・エーロゾルの量に直接
比例し、従つてこれは検査すべき空気中の濃度に
対する尺度である、１m3当り0.1〜１mgのAs2O3
範囲の濃度を確実に検出することができる。 This solution is advantageously used in test tube methods.
The test tube according to the invention allows all necessary parts to be combined in one device. The test tube method is generally known in principle and makes it possible to carry out air tests for monitoring workplaces in a simple manner and manner. For the measurement, in a first step the tip of the test tube is opened and then a predetermined amount of the air to be tested is passed through the test tube using a known suction pump. In a similar subsequent process, fold the reagent ampoule and
The contents are then drawn up into the separation layer using a suction pump. If the arsenic trioxide aerosol to be measured is present in the test air, a reduction to hydrogen arsenide takes place, which then colors the indicator layer. The length of the coloration is directly proportional to the amount of arsenic trioxide aerosol deposited and is therefore a measure for the concentration in the air to be tested, 0.1-1 mg As 2 O 3 per m 3
A range of concentrations can be reliably detected.
次に本発明による試験管の実施例を図面に示
し、これに基づき詳述する。 Next, an example of the test tube according to the present invention is shown in the drawings, and will be described in detail based on the drawing.
相応する多くのガスを測定するための種々の試
験管は公知である。本発明による試験管にも公知
の多くの構成部品を利用することができる。これ
は折り取り可能な２個の先端７及び８を有するガ
ラス管６である。装填物は保持材１０間でその
個々の区分内に揺動しないように保持されてい
る。ガラス管６は検査すべき空気の貫流方向９に
向つて順次に、稀硫酸で満たされている破砕可能
の試薬アンプル１、ガラス管壁の端部に接続され
た亜鉛末で含浸された濾紙２、集積層３、分離層
４及び指示層５から成る。この場合集積層３の材
料は粒状のシリカゲルであり、分離層４の材料は
粒状の不活性石英であり、指示層５の材料は塩化
金で含浸された粒状のシリカゲルである。破砕可
能の試薬アンプル１は破断個所１２としてくびれ
部を有するガラス管によつて包囲されている。こ
の破断個所は気密な収縮ホース１１で覆われ、ガ
ラス管が破砕された際内部のアンプルも破壊され
るように折れ曲がる。この場合収縮ホース１１は
試験ガス並びにアンプル内容物がガラス管外に漏
出するのを阻止する。 A wide variety of test tubes for measuring a number of corresponding gases are known. Many known components can also be utilized in test tubes according to the invention. This is a glass tube 6 with two breakable tips 7 and 8. The charge is held in its individual sections between the holding members 10 in a manner that it cannot swing. The glass tube 6 is successively arranged in the flow direction 9 of the air to be tested, including a crushable reagent ampoule 1 filled with dilute sulfuric acid and a filter paper 2 impregnated with zinc dust connected to the end of the glass tube wall. , an integration layer 3, a separation layer 4 and an indicator layer 5. The material of the accumulation layer 3 is in this case granular silica gel, the material of the separation layer 4 is granular inert quartz, and the material of the indicator layer 5 is granular silica gel impregnated with gold chloride. The breakable reagent ampoule 1 is surrounded by a glass tube with a constriction as the breaking point 12. This broken point is covered with an airtight shrink hose 11, which bends so that when the glass tube is broken, the ampoule inside is also broken. In this case, the shrink hose 11 prevents the test gas as well as the contents of the ampoule from leaking out of the glass tube.
測定は次のようにして二処理行程で実施するこ
とができる。 The measurement can be carried out in two steps as follows.
１ 先端７及び８を折り取つた後試験管を公知の
手動吸引ポンプ内に挿入し、次いで調査すべき
検査空気を20行程で貫流方向９で試験管に吸い
上げる。その際検査すべき空気中に存在する浮
遊粒子、並びに三酸化ヒ素−エーロゾルは濾紙
２上に析出される。1. After breaking off the tips 7 and 8, the test tube is inserted into a known manual suction pump and the test air to be investigated is then drawn up into the test tube in the flow direction 9 in 20 strokes. The airborne particles present in the air to be examined, as well as the arsenic trioxide aerosol, are deposited on the filter paper 2.
２ 試薬アンプル１を折り、硫酸を集積層３の方
向に排出し、引続き吸収ポンプで分離層４に吸
収させる。この場合硫酸は濾紙２上で亜鉛と反
応して、発生期の水素を生じ、これはAs2O3を
還元する。2. Fold the reagent ampoule 1 and drain the sulfuric acid in the direction of the accumulation layer 3 and then absorb it into the separation layer 4 using the absorption pump. In this case, the sulfuric acid reacts with the zinc on the filter paper 2 to form nascent hydrogen, which reduces the As 2 O 3 .
Zn＋H2SO4→ZnSO4＋2H
As2O3＋12H→2AsH3＋3H2O
次いで生じるヒ化水素を指示層５内で塩化金で
指示させる：
AsH3＋AuCl3→Au＋3HCl Zn＋H 2 SO 4 →ZnSO 4 +2H As 2 O 3 +12H → 2AsH 3 +3H 2 O Then, the resulting hydrogen arsenide is indicated with gold chloride in the indicator layer 5: AsH 3 +AuCl 3 →Au+3HCl
図面は本発明による試験管の１実施例を示す断
面図である。
１……試薬アンプル、２……濾紙、３……集積
層、４……分離層、５……指示層、６……ガラス
管、７，８……折り取り可能の先端、９……貫流
方向、１１……収縮ホース、１２……破断個所。
The drawing is a sectional view showing one embodiment of the test tube according to the present invention. 1... Reagent ampoule, 2... Filter paper, 3... Accumulating layer, 4... Separation layer, 5... Indicator layer, 6... Glass tube, 7, 8... Breakable tip, 9... Through flow Direction, 11... Contraction hose, 12... Broken location.
Claims (1)
上流に配置されまた折り取り可能の先端７，８を
備えたガラス管６によつて包囲されている、試薬
を含むアンプル１を用いて空気中の三酸化ヒ素・
エーロゾルを測定する形式の、ガラス管６を折つ
た際にアンプル１が破壊される、収縮ホース１１
で覆われた破断個所１２を有する試験管におい
て、ガラス管６が検査すべき空気の貫流方向９に
向つて順次に、稀硫酸が満たされている試薬アン
プル１、ガラス管壁の端部に接続された亜鉛末で
含浸された濾紙２、粒状のシリカゲルから成る集
積層３、粒状の不活性石英から成る分離層４及び
塩化金で含浸された粒状のシリカゲルから成る指
示層５を含むことを特徴とする空気中の三酸化ヒ
素・エーロゾルを測定する試験管。1. Using an ampoule 1 containing a reagent, which is arranged upstream of the indicator layer 5 in the flow direction of the air to be tested and is surrounded by a glass tube 6 with breakable tips 7, 8. Arsenic trioxide in the air
Shrink hose 11 of the type for measuring aerosols, in which the ampoule 1 is destroyed when the glass tube 6 is broken
In a test tube with a break point 12 covered with , glass tubes 6 are connected successively in the flow direction 9 of the air to be tested to a reagent ampoule 1 filled with dilute sulfuric acid, at the end of the glass tube wall. a filter paper 2 impregnated with zinc dust, an accumulation layer 3 consisting of granular silica gel, a separating layer 4 consisting of granular inert quartz, and an indicator layer 5 consisting of granular silica gel impregnated with gold chloride. A test tube for measuring arsenic trioxide aerosol in the air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792926711 DE2926711C2 (en) | 1979-07-03 | 1979-07-03 | Detector tubes for measuring arsenic trioxide aerosols in air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5611357A JPS5611357A (en) | 1981-02-04 |
| JPH0147743B2 true JPH0147743B2 (en) | 1989-10-16 |
Family
ID=6074731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9006580A Granted JPS5611357A (en) | 1979-07-03 | 1980-07-03 | Test tube for measuring arsenic trioxide aerosol |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5611357A (en) |
| DE (1) | DE2926711C2 (en) |
| FR (1) | FR2461253A1 (en) |
| GB (1) | GB2053467B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118878C2 (en) * | 1981-05-13 | 1985-02-14 | Drägerwerk AG, 2400 Lübeck | Detector tube |
| DE3223742C2 (en) * | 1982-06-25 | 1985-08-22 | Drägerwerk AG, 2400 Lübeck | Detector tubes for the selective measurement of oil mist |
| JPS61296268A (en) * | 1985-06-25 | 1986-12-27 | Nippon Paionikusu Kk | Detection agent |
| JPH01180765U (en) * | 1988-06-03 | 1989-12-26 | ||
| DE59103769D1 (en) * | 1990-08-16 | 1995-01-19 | Draegerwerk Ag | Colorimetric detection device with a reagent reservoir. |
| GB2378753A (en) * | 2001-08-17 | 2003-02-19 | Acaris Healthcare Solutions Pl | Collection and analysis of entrained components |
| GB0303719D0 (en) * | 2003-02-18 | 2003-03-19 | Wagtech Internat Ltd | Detection method and apparatus |
| JP4172779B2 (en) * | 2003-08-20 | 2008-10-29 | 理研計器株式会社 | Louisite detector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE742689C (en) * | 1942-06-02 | 1944-02-25 | Draegerwerk Heinr U Bernh Drae | Method for the detection of both volatile and foggy arsine warfare agents |
| DE1140749B (en) * | 1958-02-27 | 1962-12-06 | Draegerwerk Ag | Method and device for the detection of chlorovinylarsines (Lewisite) |
-
1979
- 1979-07-03 DE DE19792926711 patent/DE2926711C2/en not_active Expired
-
1980
- 1980-04-02 GB GB8010983A patent/GB2053467B/en not_active Expired
- 1980-07-02 FR FR8015029A patent/FR2461253A1/en active Granted
- 1980-07-03 JP JP9006580A patent/JPS5611357A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2926711B1 (en) | 1980-10-02 |
| DE2926711C2 (en) | 1981-06-11 |
| GB2053467B (en) | 1983-04-13 |
| FR2461253B1 (en) | 1983-02-18 |
| FR2461253A1 (en) | 1981-01-30 |
| JPS5611357A (en) | 1981-02-04 |
| GB2053467A (en) | 1981-02-04 |
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