JPS5983096A - Radioactive material transporting cask and its leakage test - Google Patents
Radioactive material transporting cask and its leakage testInfo
- Publication number
- JPS5983096A JPS5983096A JP57193028A JP19302882A JPS5983096A JP S5983096 A JPS5983096 A JP S5983096A JP 57193028 A JP57193028 A JP 57193028A JP 19302882 A JP19302882 A JP 19302882A JP S5983096 A JPS5983096 A JP S5983096A
- Authority
- JP
- Japan
- Prior art keywords
- lid
- plug
- helium
- gas
- leakage
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は放射性物質輸送容器及びその湘戊試験法に閂す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radioactive material transport container and a test method for the same.
原ｊ−力ｉｉ＋ｚｉ、設、核燃料処理工場等において、
放射（１゛・ｉ゛りＴ↓ケＩｉＱ −ｊ；、、＞ ’ｅ
。糾：（（に収納しうとパするにＸ）たり放射ｉ’ｌ：
’Ｉ’＝、ｑ ’ＵＩ”が））、４洩して外部を汚染
しないように放射１４１゜！Ｆｖ質を谷ｉ１目こ収納し
たし蕎のシール性を（′Ｉ↓証ずろたＬりその気密試、
完を行２１うことか（豆、ｌ１３づけられでいろ。従来
、その））ｌ洩！：（準は１（ｒ” 〜１．Ｑ ’ ｎ
ｔｍ ｃｃ／５ｅｅ（′ｒ！度Ｃあるため容器の収納宗
門１−１部を、２本の０リング等のシール材を升し蓋で
密閉するよう構成し７、そのシール材の中間域より蓋を
胃通して導管を引出し、中間域に圧空をかけ、その圧力
降下によりｉｔ４洩ωを検出している。ところが、近時
収納物がｍウラン元素（特にプルトニウム）を含むよう
になるにしたがって漏洩基準もＩＱ−７ａｔｍ ｃｃ／
ｓｅｅ程１１トまで要求されることになったため従来の
圧力降下法で測定することが不可能となり、更に微量の
）ｌ→洩を検出ずろためには、密閉（ッた容器内にヘリ
ウムカスを充填し、シール材の中間域から引出したう第
１管にヘリウム検出器を接続しその漏洩ガスを？国定す
る所謂ヘリウ１１、リークテストによる漏洩試験を行な
うことが要望される。In nuclear fuel processing plants, etc.,
Radiation (1゛・i゛riT↓ IiQ −j;,,＞'e
.箭：((to store it in X) or radiate i'l：
'I' =, q 'UI' is)), radiation 141° to prevent it from leaking and contaminating the outside!Fv quality was stored in the valley i1, and the sealing property of the soba was ('I↓proof). Risono airtight test,
Do you want to complete the complete line 21? :(quasi is 1(r” ~ 1.Q' n
tm cc/5ee ('r! Since the temperature is C, the storage section 1-1 of the container is configured with sealing material such as two O-rings and sealed with a lid7, and from the middle area of the sealing material. The lid is passed through the stomach, a conduit is pulled out, compressed air is applied to the intermediate region, and it4 leakage is detected by the pressure drop.However, recently, as stored items have come to contain m-uranium elements (particularly plutonium), The leakage standard is also IQ-7 atm cc/
Since a pressure of up to 11 tons was required, it became impossible to measure using the conventional pressure drop method, and in order to detect even minute leaks, it was necessary to fill a sealed container with helium scum. It is recommended that a helium detector be connected to the first tube that is filled and pulled out from the middle area of the sealing material, and that leakage gas be detected by conducting a leak test using the so-called Helium 11 leak test specified by the national government.
しかるに、ヘリウムガスによるり−クチストを行なうた
めには、放射性物Ｔｔを収納、密封した容器内にヘリウ
ムカスを充填するガス導入管を設ける必要があり、蓋の
シール部の漏洩を確認しても、更にこのヘリウムガス導
入管にイ」設したバルブのシール性をいかにして保ハ１
．するかという困！！１［な問題点がある。However, in order to carry out helium gas leakage, it is necessary to install a gas inlet pipe to fill the helium scum into the sealed container containing the radioactive material Tt, and even if leakage from the lid seal is confirmed, Furthermore, how can we maintain the sealing performance of the valve installed in this helium gas introduction pipe?
．． I wonder if I should do it! ! 1 [There is a problem.
本発明は上記問題点を解決すべくなされたもので、本発
明は蓋に設けたヘリウムガス的入管に、自動バルブ付迅
速継手のプラグを付設し、このプラグを四／１．で可撓
性に構成された保Ｒ（（ｉ蓋のフランジを複数個のシー
ル材を介して蓋面に取付けると共に、この保護蓋の天部
をプラグの弁に押し当てることにより弁を開ｈｖシ、収
納室内のヘリウムガスを保護蓋内に拡１１！さセ、この
ヘリウムガスを媒体として保護蓋のシール性を？ｉ／１
′認するようにした放射性物質輸送容器、及びその漏洩
試験法に係るものでＪ〕ろ。The present invention has been made to solve the above-mentioned problems, and the present invention includes a plug of a quick coupling with an automatic valve attached to the helium gas inlet pipe provided in the lid, and this plug is connected to the 4/1. The flange of the lid is attached to the lid surface via multiple sealing materials, and the valve is opened by pressing the top of the protective lid against the valve of the plug. 11. Spread the helium gas inside the storage chamber into the protective lid! S, use this helium gas as a medium to improve the sealing of the protective lid?i/1
Containers for transporting radioactive materials that have been approved and their leakage testing methods.
以下、本発明を実施例にっきト１面にもとついて説明す
る。Hereinafter, the present invention will be explained based on one example.
収納室（１）の開口部は図示しないボルトを介し、２本
の０リング（２）、（３）をシール材として蓋（４）に
より密封するようｌ；１１．成される。（５）は０リン
グ（２）、（３）の中間域より引出された漏洩ガス検出
用専管でその端部にはバルブ（又はプラグ）（６）が（
＝Ｊ設される１、＋７１ Ｊ、ｌ密封した収納室（１）
内へヘリウムカスを充填ずろためのヘリウムガスｉｒＪ
、人管でその端部には自動バフ１フｆ；、Ｉ迅速付Ｉ１
手のプラグ（８）がイ」設されろ。尚、本発明で云う自
動バルブｈｌ迅速継手のプラグ（８）とは、すなわち第
４図に示すとと（、その弁体（９）はスプリング（１０
）によって外方に押され開］二１部内周縁に１ｉＸ７′
、けらノまた弁座（１０に密着し外部への浦１体の曲れ
” 、＋１！［ｌｌ＃ｉ シ、図中点線で示すごとく弁
体を内方へ押し込むことにＪ：り弁座と弁体の間に環状
の流路が形成されろように構成された迅速継手のプラグ
である。The opening of the storage chamber (1) is sealed with a lid (4) using two O-rings (2) and (3) as sealants via bolts (not shown);11. will be accomplished. (5) is a dedicated pipe for detecting leakage gas pulled out from the intermediate area between O-rings (2) and (3), and a valve (or plug) (6) is attached to the end of the pipe (6).
= J installed 1, +71 J, l sealed storage room (1)
Helium gas IRJ for filling helium scum inside
, the end of the human tube has an automatic buff f;, I quick attachment I1
Install the hand plug (8). In addition, the plug (8) of the automatic valve HL quick joint referred to in the present invention is the plug (8) shown in FIG.
) is pushed outward by
, Keranomata valve seat (close contact with 10 and bending of one body to the outside) ,+1! This is a quick coupling plug configured such that an annular flow path is formed between the valve body and the valve body.
（１→はプラグ（８）を囲んでこれを密封する保護蓋で
そのフランジ０３は２木の０リング（１４）、θＱをシ
ール材と（７図示しないボルトを介して蓋（４）面に取
利けられ、その天部は板バネｏＱよりなり、がっ、図中
点線で示すごとくこの板バネを外ｆ１１（より押してプ
ラグ（８）の弁体（９）を内方へ押し込むことによりプ
ラグを開放せしめるよう構成されろ。０旧よ０リングθ
ａ、（埒の中間域より保護蓋（１２をＶ（辿して引出さ
れた漏洩ガス検出用導管で、その端部にはバルブ（又は
プラグ）（ＩＱが付設される。(1 → is a protective lid that surrounds and seals the plug (8), and its flange 03 is a two-wood O-ring (14), θQ is connected to the sealing material (7) and attached to the lid (4) surface via bolts (not shown). The top part consists of a leaf spring oQ, and by pushing this leaf spring outward f11 (as shown by the dotted line in the figure) and pushing the valve body (9) of the plug (8) inward. Be configured to open the plug. 0 old 0 ring θ
a. A leakage gas detection conduit drawn out from the middle area of the protective cover (12) with a valve (or plug) (IQ) attached to its end.
本発明のｂｋ射性物質輸送容器は上記のように構成され
ており、以下にその漏洩ｄｉ（験法を説明する。The BK radioactive substance transport container of the present invention is constructed as described above, and the leakage test method will be explained below.
先ず１ｉ′ｉ、別件物質を収納し蓋で密封された輸送容
器の導管（５）に付設゛さ第１だバルブ（６）をヘリウ
ム検出器に接続し、バルブ（６）を開いてバックグラン
ドを測定し、その測定値（５）を求める。次いでｉｆｆ
管（７）に付設されたプラグ（８）より収納室（１）内
にヘリウムガスを充１．へする。充填方法としては真空
置換性等任意の公知の手段で行はれろ。収納室（１）内
にヘリウムガスを充填した後再びバルブ（６）ヲヘリウ
ム検出器に接続し、バルブを開いてヘリウム量５＝聞定
しその測定値の）を求む第１ば、蓋部（４）の０リング
（３）からの漏洩量（Ｑは測定航０−バッククランド曲
定値■で示され急。First, connect the first valve (6) attached to the conduit (5) of the transportation container containing the other substance and sealed with a lid to the helium detector, and open the valve (6) to detect the background. Measure and obtain the measured value (5). then if
1. Fill the storage chamber (1) with helium gas from the plug (8) attached to the pipe (7). to. The filling method may be any known method such as vacuum displacement. After filling the storage chamber (1) with helium gas, connect the valve (6) to the helium detector again, open the valve, measure the amount of helium (5), and determine the measured value. 4) The amount of leakage from the 0 ring (3) (Q is the measured value 0 - Backklund curve constant value ■) and is steep.
引）売き１１ｉ評蓋ｕ２をＩ＋”（伺け、堺管０７）の
バルブθ杓をヘリウムｔｉｈ出器に接続し、バルブｕ枠
を聞いてバックグランドを測定しその測定値０を求め、
次いで肖ｌ護蓋（１つの板ハネ（１呻を図中点線で示す
ごとく外部より押しで、弁体を内方へ押し込むことによ
りプラグ（田を開成し、収納室（１）内に充填されたヘ
リウムガスを蓋ｆ４１ ＋Ｉｊｉと保晩ＭＯηとによ乃
形成された空問い！内に拡１１（さぜた後、テＪｔ管０
″ｉ）のバルブ（１→をヘリウム（町（・Ｉｌｌ ｔ’
！：！に接続し、バルブ（１８１を開いてへりｒシム１
フｊ ’、ｇ ＋！！ｌ定（ノイノ氾り定１ｉｉ’ｉ
ｆ ｄ”）を５１≧むれば、イ′ｄ ｉ′Ｑ蓋Ｈの０リ
ング０りからのＷｉｔ洩噺０は測定値０−バックグラン
ド１Ｑｉｌ定値σ力で示されろ、（７（８つて、輸送容
器の蓋部からの漏洩ｈｔはＱ ＩＪング（３１からの漏
洩ｆｆ１（ＱとＯリング０９からの４４洩量［Ｆ］とを
加算ｊろことにより求められろ。Connect the valve θ scoop of the sold 11i review lid u2 to the helium tih outlet, listen to the valve u frame, measure the background, and find the measured value 0.
Next, the plug is opened by pushing the valve body inward using one plate spring (1) from the outside as shown by the dotted line in the figure, and the storage chamber (1) is filled. Expand the helium gas into the air formed by the lid f41 +Iji and the retention MOη.
``i) valve (1 → helium (town (・Ill t')
! :! Connect to the valve (181) and remove the shim 1.
Fj', g+! ! l constant (Noino flood constant 1ii'i
f d”) is greater than or equal to 51, then the Wit leakage 0 from the 0 ring 0 of the lid H is expressed as the measured value 0 - background 1 Qil constant value σ force, (7 (8 The leakage ht from the lid of the transport container can be found by adding the leakage from Q IJ (31) ff1 (Q and the leakage amount [F] from O-ring 09).
尚、本実施例においてはシール材としてＯリングを２本
１す舅１１シたが角リング等地のスクイーズパッキンを
使用してもよく、又、３本以上使用してもよい。In this embodiment, a squeeze packing such as two O-rings and one square ring may be used as the sealing material, or three or more O-rings may be used.
第３図は１ｌｌｔの実ｊｉｉｌ Ｉ’ｌｌ ６Ｆ ｉｉ
４ずもので、（’１４００→の１１１・ｉｌ部をベロー
ズ（１！；でｌｙｖ成しその大部を１１体（９１に押し
当てプラグ（８）を聞１ｊ’Ｌ−するよう（ｌ〜１ｈ鴇
（、てもよい。Figure 3 shows 1llt fruit jiil I'll 6F ii
With 4 pieces, lyv the 111・il part of ('1400 → with bellows (1!; 1h Toki (, may be used.
１゛Ｊ１．Ｊｌの説明で明ｆ゛）か〆「、１、うに本３
色明の１カｊ）送谷器堪イよびｒｌｒｌ ？’！！ ｓ
ｔｔ＋ ｒ：・処ｒ１ζ１こよれば１・Ｃ来のものとこ
とノシリ／１９ Ｍｌ ｆｉｌＥ物′ｔ゛ｔ ｔ ＋Ｉ
ｙ納シタ’Ｉ”Ｑ ）Ｇ ｔｒ！（ｌ Ｒ： ｔ−＜
イテ、ソＣ１） ｂイ：） メチｆ？’ｌ Ｉｉｋ １
ｉｉｌ ｉｌ ｆＱ ｔ、 １ｌｌｌｌ ＞ｉ、： ス
ルコ（！： ７’ｌ −Ｃｈ ル。1゛J1. In the explanation of Jl.
Colorful 1kaj) Sukiyaki Tanaiyo and rlrl? '! ! s
tt+ r:・Process r1ζ1 According to 1・C the previous one/19 Ml filE thing't゛t t +I
yinashita'I"Q)G tr!(l R: t-<
Ite, SoC1) bi:) Mechi f? 'l Iik 1
iil il fQ t, 1llll >i,: Suruko (!: 7'l -Ch ru.
尚、本発明は十−１弓１；、 ＩＪｉｌｉ （；’ｌレ
ノ）八に限定さｉｔろもの−ｔ’ ｉＪ、 ｌｉ ＜
、メｉ障１４ ｆｌ ＋１ｇ１’ｔｉを収Ｗ（するコン
グ゛ナー等、（１４のツ： ｉｉ／７、（；（〜ｌｌ：
ｊ （ζｊＪ：ｌ川′（）用るごと、そのイ（１１□本
発明の要旨ケ・逸＋１°；；ｉ Ｌ、ないｆ１屯川で叩
々９中苓・ｂ１■え社１ろこと１ま云う」二１゛も１１
い。It should be noted that the present invention is limited to eight bows.
, the main obstacle 14 fl +1g1'ti is contained W(Congner et al., (14th: ii/7, (;(~ll:
j (ζjJ:lkawa'(), when used, its i(11□Summary of the present invention ke + 1°;;i L, no f1Tuncheon 9 Churei・b1■Esha1rokoto 1 says” 21゛ is also 11
stomach.
’ｉｉ １ 図ｉ；１本発、四〇） 実ｈｌｌｉ イＸ
ｉｌ ％示−４−％、ｌ；、’ｌ、四回、弔２図番よ千
１図の要部猟人１；４、′ｒ１′ｉ：１ ｔ！！ｌ ｌ
；１曲１のシシ施例の要部１法人図、ｌ（Ｓ ４ ｒ−
＜１）、木づＩＩ明におＣ」る自動バルブ付５）Ｉ Ｊ
Ｊ４１ ＭＲ手のプラグケ説＋ｊｊｌ−ｎろ１ｔり；而
でアル。
■・・収イＩ’ｌ室 ２．３．１４．１５・Ｏリング
４・・・蓋５ 、］、’７−１１ｉ１洩カス１１＋７出
ｈｕｒｔ管 ７、、− カフ、 ｍ４人管８・・・プラ
グ Ｊ２１’＋Ｓ Ｊ’を蔚 １ （ｊ・・・仮バネ１
９ ベローズ
５
第１図
′ｆ′ぎ４図
第２図 １２'ii 1 Figure i; 1 shot, 40) Real hlli iX
il %show-4-%, l;, 'l, four times, funeral 2 drawing number, main part of 1,000 drawing 1; 4, 'r1'i: 1 t! ! l l
; Main part 1 corporate figure of 1 song 1 shishi example, l (S 4 r-
<1) With automatic valve attached to Kizu II Akira 5) I J
J41 MR hand's plug theory + jjl-nro1t; ■・Accumulation I'l room 2.3.14.15・O-ring
4...Lid 5,],'7-11i1Leakage 11+7 Output hurt tube 7,, - Cuff, m4 tube 8...Plug J21'+S J' 1 (j...Temporary spring 1
9 Bellows 5 Figure 1 'f' 4 Figure 2 Figure 2 12
Claims (4)
判るよう構成された放射性物質輸送容器において、前記
シール材の中間域より蓋を貫通して漏洩カス検出用導管
を引出すと共に、該蓋を貫通して収納室にガスを導入す
る端部に自動バルブ付ノ、ｉ速継手のプラグを付設した
ガス導入管を設け、更に該プラグを囲んで可撓性に構成
された着脱自在の保護蓋をそのフランジ部にお′いて複
数個のシール材を介し蓋面に取付けろと共に該保護蓋の
大部をプラグの弁体に押し当てることによりプラグを開
／ｉ９するよう構成し、更ζこシール材の中間域よりフ
ランジを貫通して漏洩ガス検出用導管を引出したことを
特徴とする放射性物質輸送容器。(1) In a radioactive material transport container configured such that the opening of the storage chamber is sealed with a lid via a plurality of sealing materials, a leakage detection conduit is drawn out through the lid from an intermediate region of the sealing materials, and A gas introduction pipe with an automatic valve and an i-speed joint plug is installed at the end that penetrates the lid and introduces gas into the storage chamber, and the plug is further surrounded by a flexible structure that is detachable. A protective lid is attached to the lid surface via a plurality of sealing materials at its flange portion, and the plug is opened by pressing a large part of the protective lid against the valve body of the plug, A radioactive substance transport container characterized in that a leak gas detection conduit is drawn out from the middle region of the sealing material by penetrating the flange.
許請求の範囲第１項記載の７Ａ，耐性物質輸送容器。(3) 7A, a resistant substance transport container according to claim 1, wherein the body of the ('+j m+ lid is a bellows).
：９において、敢１・１性物Ｔｔを１１７拍しハ｛りで
蜜月した後、ｋ ’ｔ：ｖＣ ｔｌ！ｊ Ｌ／で引出さ
れた漏洩カス検出用導層゛にヘリウム検出器を１，・３
続してバックグラン１きを測定し、次いでＲでｔに１没
けたカスＮ１人１τより収納室内にヘリウムガスを充填
した後、前記漏洩カス検出用導管にヘリウム検出器を接
続し漏洩ガスを測定すると共に、前記カス導入管のプラ
グを囲んで保護蓋をＩＩＩ／ ｛Ｊｃ？密１ヘ１シた彼
、該保ｄ（ぐ蓋のフランジを貫通して引出された漏１曳
ガス検出用導管にヘリウム検出器を接続してそのバック
グランドを測定し、次いで該保護蓋の天部をプラグの弁
体に押し当てプラグを［１ｊ１いて収納室内のヘリウム
ガスを保ボ６蓋内に担、１１（させ、更に保護蓋のフラ
ンジを貫通して引出された漏洩カス検出用導管にヘリウ
ム検出器を接続しヘリウムを測定することを特徴とする
放射性物質輸送容器の漏洩試験法。(4) Drastic substance transport valley E according to claim 1
:9, after 117 beats of 1.1 sex Tt and honeymoon, k't:vC tl! j Install helium detectors 1, 3 on the conductive layer for leakage detection drawn out by L/.
Next, the background was measured, and then the storage chamber was filled with helium gas from the scum N1 1τ that sank at t at R, and a helium detector was connected to the conduit for detecting leaked scum to detect the leakage gas. At the same time as measuring, a protective lid is placed around the plug of the waste introduction tube. He then connected a helium detector to the leakage gas detection conduit drawn out through the flange of the protective lid to measure its background, and then Press the top of the plug against the valve body of the plug and move the helium gas in the storage chamber into the storage chamber 6 lid, and then insert the leakage detection conduit drawn out through the flange of the protective lid. A leakage test method for radioactive material transport containers, which is characterized by connecting a helium detector to the container and measuring helium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57193028A JPS5983096A (en) | 1982-11-02 | 1982-11-02 | Radioactive material transporting cask and its leakage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57193028A JPS5983096A (en) | 1982-11-02 | 1982-11-02 | Radioactive material transporting cask and its leakage test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5983096A true JPS5983096A (en) | 1984-05-14 |
| JPH0226756B2 JPH0226756B2 (en) | 1990-06-12 |
Family
ID=16300964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57193028A Granted JPS5983096A (en) | 1982-11-02 | 1982-11-02 | Radioactive material transporting cask and its leakage test |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5983096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0829591A (en) * | 1994-07-15 | 1996-02-02 | Ishikawajima Harima Heavy Ind Co Ltd | Method and container for containing radioactive contaminant |
| EP0871180A1 (en) * | 1997-04-10 | 1998-10-14 | Commissariat A L'energie Atomique | Packaging for shipment of hazardous parcels such as containing high activity nuclear substances |
| FR2766570A1 (en) * | 1997-07-24 | 1999-01-29 | Transnucleaire | DEVICE AND METHOD FOR PERMANENTLY TESTING THE SEALING OF SINGLE OR MULTIPLE LIDS FOR SEALING CONTAINERS FOR RADIOACTIVE MATERIALS |
| JP2003505690A (en) * | 1999-07-27 | 2003-02-12 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Foil leak detection room |
-
1982
- 1982-11-02 JP JP57193028A patent/JPS5983096A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0829591A (en) * | 1994-07-15 | 1996-02-02 | Ishikawajima Harima Heavy Ind Co Ltd | Method and container for containing radioactive contaminant |
| EP0871180A1 (en) * | 1997-04-10 | 1998-10-14 | Commissariat A L'energie Atomique | Packaging for shipment of hazardous parcels such as containing high activity nuclear substances |
| FR2762132A1 (en) * | 1997-04-10 | 1998-10-16 | Commissariat Energie Atomique | PACKAGE FOR TRANSPORTING DANGEROUS PACKAGES, SUCH AS HIGH-ACTIVITY NUCLEAR PACKAGES |
| FR2766570A1 (en) * | 1997-07-24 | 1999-01-29 | Transnucleaire | DEVICE AND METHOD FOR PERMANENTLY TESTING THE SEALING OF SINGLE OR MULTIPLE LIDS FOR SEALING CONTAINERS FOR RADIOACTIVE MATERIALS |
| WO1999005686A1 (en) * | 1997-07-24 | 1999-02-04 | Societe Pour Les Transports De L'industrie Nucleaire Transnucleaire | Device and method for permanently controlling the tightness of closing lids of containers for radioactive materials |
| US6223587B1 (en) * | 1997-07-24 | 2001-05-01 | Transnucleaire | Device and method for permanently controlling the tightness of closing lids of containers for radioactive materials |
| JP2003505690A (en) * | 1999-07-27 | 2003-02-12 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Foil leak detection room |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0226756B2 (en) | 1990-06-12 |
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