JPH044547B2 - - Google Patents
Info
- Publication number
- JPH044547B2 JPH044547B2 JP57222409A JP22240982A JPH044547B2 JP H044547 B2 JPH044547 B2 JP H044547B2 JP 57222409 A JP57222409 A JP 57222409A JP 22240982 A JP22240982 A JP 22240982A JP H044547 B2 JPH044547 B2 JP H044547B2
- Authority
- JP
- Japan
- Prior art keywords
- tar
- tube
- metal oxide
- oxide powder
- product detection
- 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 - Lifetime
Links
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 13
- 229910052746 lanthanum Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 description 17
- 239000003350 kerosene Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 150000002432 hydroperoxides Chemical class 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、灯油のタール性向を分析するタール
生成物質のタール生成物検出管に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tar product detection tube for tar-forming substances for analyzing the tar propensity of kerosene.
従来例の構成とその問題点
一般に灯油はJISによつて反応（中性）、引火点
（40℃以上）、蒸留性状（95％留出温度270℃以
下）、硫横分（１号灯油で0.015％以下）煙点（21
以上）、銅板腐食（50℃3hで１以下）、色（セー
ボルト＋25以上）が規定されているが、このJIS
規格を満足したものであつてもタール生成物質が
多く含まれているものがあり、燃焼に供すると多
量のタールを発生する場合がある。Structure of conventional examples and their problems In general, kerosene is determined by JIS to be reactive (neutral), flash point (40°C or higher), distillation properties (95% distillation temperature 270°C or lower), and sulfur content (No. 1 kerosene). 0.015% or less) smoke point (21
above), copper plate corrosion (below 1 at 50°C for 3 hours), and color (saybolt +25 or above), but this JIS
Even if the product meets the specifications, it may contain a large amount of tar-forming substances and may generate a large amount of tar when burned.
そのため従来は灯油中のタール生成物量の多少
（タール性向）を検出できるようにするたの検出
管が考えられている。第１図はその検出管を示
し、１は両端を熱融着したポリエチレン管、２は
その中に設けたヨウ化カリウムを含む活性アルミ
ナ粉体、３はその両端部に設けた綿である。この
検出管は両端を切断しその切口を灯油中に侵積し
て使用するが、この時タール生成物質の一つであ
るガム分を中心とした着色成分があると活性アル
ミナ粉体がこれを吸着して変化し、その変色度合
によつてガム分を中心とした着色成分の多少が検
出できる。また同じくタール生成物質の一つであ
るハイドロパーオキサイドがあるとヨウ化カリウ
ムが次式のような変化を起し、ヨウ素の発色度合
でその多少が検出できる。 For this reason, conventionally, detection tubes have been considered that are capable of detecting the amount of tar products (tar propensity) in kerosene. FIG. 1 shows the detection tube, in which 1 is a polyethylene tube with both ends heat-sealed, 2 is activated alumina powder containing potassium iodide provided therein, and 3 is cotton provided at both ends. This detection tube is used by cutting off both ends and immersing the cut end in kerosene.At this time, if there are colored components, mainly gum, which is one of the tar-forming substances, the activated alumina powder will remove them. It adsorbs and changes, and depending on the degree of color change, it is possible to detect the amount of colored components, mainly gum components. Also, in the presence of hydroperoxide, which is also a tar-forming substance, potassium iodide undergoes a change as shown in the following formula, and the degree of change can be detected by the degree of color development of iodine.
Ｒ−Ｏ−Ｏ−Ｈ＋2KI→Ｒ−Ｏ−Ｈ＋K2O＋I2
しかしながら上記従来の検出管ではタール生成
物質の一つである高分子成分についてはこれを検
出する機能がなく、十分なタール性向検出ができ
ないという問題があつた。 R-O-O-H+2KI→R-O-H+K 2 O+I 2 However, the conventional detection tube described above does not have the function of detecting the polymer component, which is one of the tar-forming substances, and cannot adequately detect tar propensity. The problem was that I couldn't do it.
発明の目的
本発明は上記の点に鑑みてなしたもので、高分
子成分のタール生成物量の多少も検出できるよう
にすることを目的としたものである。OBJECTS OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to enable detection of the amount of tar products of polymer components.
発明の構成
上記目的を達成するため本発明はランタンを含
むゼオライトの層を新たに設けたものである。Structure of the Invention In order to achieve the above object, the present invention newly provides a layer of zeolite containing lanthanum.
実施例の説明
以下、その一実施例を第２図を用いて説明す
る。DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to FIG.
第２図に於いて１は、ポリエチレン樹脂、ポリ
プロピレ樹脂、アクリル樹脂、ポリウカーボネー
ト樹脂、ポリ塩化ビニル樹脂、ポリメチルペンテ
ン樹脂、ポリアミド（ナイロン）樹脂又はガラス
のように光を透過する光透過性物質からなる管で
両端を熱溶着、ゴム栓、高周波溶着、接着剤等に
よつて密封してある。２は綿、絹、合成繊維、混
紡、紙、布、アスベスト、岩綿焼結PP、ポリエ
チレン網、ナイロン網等よりなる繊維体で、使用
時に両端を切断しても中のものが外へこぼれ出な
いように固定するためのものであり、中央部の繊
維体２は、第２図の上下の物質を分離するために
設けてある。３はヨウ化カリウムを少くとも0.1
％以上含むアルミナ、マグネシア、活性白土、シ
リカゲル及びその混合物等の金属酸化物の粉体
（直径１mm以下が見やすい）であり、４はランタ
ンを少くとも0.05％以上、５％以下含むゼオライ
トで、ゼオライトの孔径５Å程度の固体粒であ
る。 In Figure 2, 1 is a light-transmitting material that transmits light, such as polyethylene resin, polypropylene resin, acrylic resin, polycarbonate resin, polyvinyl chloride resin, polymethylpentene resin, polyamide (nylon) resin, or glass. It is a tube with both ends sealed by heat welding, rubber plugs, high frequency welding, adhesive, etc. 2 is a fibrous body made of cotton, silk, synthetic fiber, blended fabric, paper, cloth, asbestos, rock wool sintered PP, polyethylene net, nylon net, etc. Even if both ends are cut during use, the contents inside will not spill out. This is to fix the material so that it does not come out, and the fiber body 2 in the center is provided to separate the upper and lower materials in FIG. 3 is potassium iodide at least 0.1
4 is a powder of metal oxides such as alumina, magnesia, activated clay, silica gel, and mixtures thereof (diameter of 1 mm or less is easy to see), and 4 is a zeolite containing at least 0.05% and 5% of lanthanum. It is a solid particle with a pore diameter of about 5 Å.
上記構成において、管１の両端を切断し、灯油
中に浸漬すると、灯油は浸漬した下部の方より浸
入してくる。そこでガム状物質があれば粉体３の
所の下部に黄土〜茶〜黒（濃度が濃いほど色も濃
くなり色の帯の長さも広くなる）の色の層がで
き、ガム状物質の多少が検出される。 In the above structure, when both ends of the pipe 1 are cut and immersed in kerosene, the kerosene will enter from the lower part of the immersed part. Therefore, if there is a gum-like substance, a layer of colors ranging from ocher to brown to black (the higher the concentration, the darker the color and the wider the length of the color band) will be formed at the bottom of powder 3, and some of the gum-like substance is detected.
また灯油の中にハイドロバーオキサイドがあれ
ば、ヨウ化カリと反応し、ヨウ素が析出して下部
に茶色の層ができ、ハイドロバーオキサイドの多
少が検出される。なお、ヨウ化カリウムは0.1％
以上ないと明瞭には検出できない。 Furthermore, if hydroperoxide is present in kerosene, it will react with potassium iodide, and iodine will precipitate out, forming a brown layer at the bottom, and some amount of hydroperoxide will be detected. In addition, potassium iodide is 0.1%
Otherwise, it cannot be clearly detected.
一方、高分子成分があれば固体粒４の所でこれ
をゼオライトが吸着し、ピンク〜赤〜赤紫〜紫色
に発色してその多少が検出される。ここで発色
は、ゼオライト中のランタンによるもので0.05％
以上ないと検知できず、又、高価なため５％以下
が望ましい。なお、使用前は粉体３も固体粒４も
当初白色であるから、その変色度合はよく分る。
又、管１は無色透明のものが好ましいが、黄〜緑
色に着色されたものでも透き通つたものであれば
よい。ターンを生成する物質とは、過酸化物、タ
ール状物質（一般に着色しており酸化重合、解重
合した分子量が概略300以上の物質）および、灯
芯式や気化バーナの気化部に於いて蒸発しない高
沸点有機化合物である。ゼオライト−ランタン系
の検出器では、この全てが検出できるが、金属酸
化物−ヨウ化カリウムでは、過酸化物とタール状
物質が検出可能である。灯油がタールを生成する
のは、灯油が酸化劣化し、過酸化物やタール状物
質が生成したか、機械油等の高沸点オイルが混入
したかである。ここで、それを検出するには、先
ず、金属酸化物−ヨウ化カリウムを通してゼオラ
イト−ランタン系に通じるようにする。そうする
と、機械油通の異種油混入であるのは、ゼオライ
ト−ランタン系の発色で判別できる。炭素数が概
略20以上のものであれば、ピンク色に発色してく
る。従来の別々の方法では分らないものである。
従つて、本発明のように２つの検出管を一体にす
ることにより、タール生成物質が何であれのかを
特定できるという画期的な性能を有するものであ
る。 On the other hand, if there is a polymer component, the zeolite adsorbs it at the solid particles 4, and the color develops from pink to red to magenta to purple, and its amount can be detected. The color here is due to 0.05% lanthanum in the zeolite.
If it is less than 5%, it cannot be detected and it is expensive, so it is desirable that it is 5% or less. Incidentally, since both the powder 3 and the solid particles 4 are initially white before use, the degree of discoloration can be clearly seen.
Further, the tube 1 is preferably colorless and transparent, but may be colored yellow to green as long as it is transparent. Substances that generate tar are peroxides, tar-like substances (generally colored substances that have been oxidatively polymerized or depolymerized and have a molecular weight of approximately 300 or more), and substances that do not evaporate in the vaporizing section of a wick type or vaporizing burner. It is a high boiling point organic compound. A zeolite-lanthanum based detector can detect all of these, but a metal oxide-potassium iodide detector can detect peroxides and tar-like substances. Kerosene generates tar because it is degraded by oxidation, producing peroxides and tar-like substances, or because it is contaminated with high-boiling point oil such as machine oil. Here, to detect it, first, it is passed through the metal oxide-potassium iodide to the zeolite-lanthanum system. Then, contamination with a different type of oil can be determined by the zeolite-lanthanum color developed by machine oil experts. If the number of carbon atoms is approximately 20 or more, it will turn pink. This cannot be determined using conventional separate methods.
Therefore, by integrating two detection tubes as in the present invention, it has an epoch-making performance in that it is possible to specify what kind of tar-forming substance it is.
なお、前記実施例で、管１はポリエチレン樹脂
とした方が経済的であり、熱溶着で簡単に密封で
き、使用時の両端の切断ははさみで容易に切れる
利点がある。 In the above embodiment, it is more economical to use polyethylene resin for the tube 1, and it has the advantage that it can be easily sealed by heat welding, and that both ends can be easily cut with scissors during use.
又、金属酸化物の粉体３は、アルミナがよく、
詳しく言うと活性アルミナが安価で性能もよく、
シリカゲルよりも水に強いので効果的である。 Further, the metal oxide powder 3 is preferably alumina,
To be more specific, activated alumina is cheap and has good performance.
It is effective because it is more resistant to water than silica gel.
発明の効果
本発明によれば、ガム状物質、ハイドロバーオ
キサイドはもちろんのこと高分子成分の検出も同
時に出来、タール性向の検出が灯油の劣化による
ものか、高沸点オイル等の異種油混入かを正確に
判定できる。特に本発明ではガム状物質、ハイド
ロパーオキサイドを検出する粉体と高分子成分を
検出する固体粒とを分離して設けたので高分子成
分の検出が確実に行える。Effects of the Invention According to the present invention, it is possible to detect not only gum-like substances and hydroperoxides but also polymeric components at the same time, and it is possible to detect whether tar propensity is caused by deterioration of kerosene or by the contamination of different types of oil such as high-boiling point oil. can be accurately determined. In particular, in the present invention, since the powder for detecting gummy substances and hydroperoxides and the solid particles for detecting polymeric components are provided separately, the detection of polymeric components can be ensured.
第１図は従来の検出管を示す断面図、第２図は
本発明の実施例の断面図である。
１……光透過性物質よりなる管、２……繊維
体、３……ヨウ化カリウムを含む金属酸化物の粉
体、４……ランタンを含むゼオライトを主成分と
した固体粒。
FIG. 1 is a sectional view showing a conventional detection tube, and FIG. 2 is a sectional view of an embodiment of the present invention. 1... A tube made of a light-transmitting substance, 2... A fibrous body, 3... A metal oxide powder containing potassium iodide, 4... A solid particle mainly composed of zeolite containing lanthanum.
Claims (1)
ヨウ化カリウムを少なくとも0.1％以上含む金属
酸化物の粉体と、ランタンを少なくとも0.05％以
上含むゼオライトを主成分とした固体粒とを設
け、前記粉体と固体粒とは前記管内で分離し、検
出時には前記金属酸化物の粉体を優先的に通過さ
せるよう先端側に設けたタール生成物検出管。 ２ 管はポリエチレン樹脂よりなり、両端を熱に
よつて密封した特許請求の範囲第１項に記載のタ
ール生成物検出管。 ３ 金属酸化物の粉体はアルミナより成る特許請
求の範囲第１項に記載のタール生成物検出管。 ４ 金属酸化物の粉体の固体粒とはそれら両間に
繊維体を設けて分離した特許請求の範囲第１項に
記載のタール生成物検出管。[Claims] 1. A metal oxide powder containing at least 0.1% potassium iodide in a tube made of a light-transmitting material with both ends sealed, and a solid mainly composed of zeolite containing at least 0.05% lanthanum. granules, the powder and the solid particles are separated within the tube, and the tar product detection tube is provided at the tip side so that the metal oxide powder passes preferentially during detection. 2. The tar product detection tube according to claim 1, wherein the tube is made of polyethylene resin and has both ends sealed by heat. 3. The tar product detection tube according to claim 1, wherein the metal oxide powder is made of alumina. 4. The tar product detection tube according to claim 1, wherein the solid particles of metal oxide powder are separated by providing a fiber body between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22240982A JPS59111061A (en) | 1982-12-17 | 1982-12-17 | Detecting tube for tar product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22240982A JPS59111061A (en) | 1982-12-17 | 1982-12-17 | Detecting tube for tar product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59111061A JPS59111061A (en) | 1984-06-27 |
| JPH044547B2 true JPH044547B2 (en) | 1992-01-28 |
Family
ID=16781924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22240982A Granted JPS59111061A (en) | 1982-12-17 | 1982-12-17 | Detecting tube for tar product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111061A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582051A (en) * | 1978-12-14 | 1980-06-20 | Matsushita Electric Ind Co Ltd | Detector for deteriorated kerosene |
| JPS55159154A (en) * | 1979-05-30 | 1980-12-11 | Matsushita Electric Ind Co Ltd | Method and apparatus for identification of property of kerosene |
| JPS5641247B2 (en) * | 1972-08-09 | 1981-09-26 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135963Y2 (en) * | 1979-09-07 | 1986-10-18 |
-
1982
- 1982-12-17 JP JP22240982A patent/JPS59111061A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641247B2 (en) * | 1972-08-09 | 1981-09-26 | ||
| JPS5582051A (en) * | 1978-12-14 | 1980-06-20 | Matsushita Electric Ind Co Ltd | Detector for deteriorated kerosene |
| JPS55159154A (en) * | 1979-05-30 | 1980-12-11 | Matsushita Electric Ind Co Ltd | Method and apparatus for identification of property of kerosene |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59111061A (en) | 1984-06-27 |
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