JPS57114839A - Measuring method for purity of gas - Google Patents

Measuring method for purity of gas

Info

Publication number
JPS57114839A
JPS57114839A JP166981A JP166981A JPS57114839A JP S57114839 A JPS57114839 A JP S57114839A JP 166981 A JP166981 A JP 166981A JP 166981 A JP166981 A JP 166981A JP S57114839 A JPS57114839 A JP S57114839A
Authority
JP
Japan
Prior art keywords
purity
variation
gas
porous material
weight
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
Application number
JP166981A
Other languages
Japanese (ja)
Other versions
JPH024850B2 (en
Inventor
Takeo Yoshioka
Keiichi Matsuoka
Atsushi Ito
Toshihiro Suzuki
Kenji Sasamori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP166981A priority Critical patent/JPS57114839A/en
Publication of JPS57114839A publication Critical patent/JPS57114839A/en
Publication of JPH024850B2 publication Critical patent/JPH024850B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (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)

Abstract

PURPOSE:To measure the purity of insulating gas enclosed in an electric instrument simply, by detecting the purity of the gas in a closely sealed receptacle by utilizing the variation of weight of a hydrophobic porous material. CONSTITUTION:SF6 in an instrument is isolated from the surrounding atmosphere by the wall of a closely sealed receptacle 1 and a part of the wall is constructed so that it is capable of opening for inspecting inner function parts at an inspection time. Further, a cloth bag 32 preventng falling of finely powdered activated carbon for a chromatograph 33 and being gas-permeable is stored in a receptacle 31 formed by a punched wire net. The activated carbon 33 is a hydrophobic porous material, that is, the porous material having low moisture adsorbing power and adsorbs SF6 gas well and then, the weight of the carbon 33 is varied linearly with the variation of the purity of SF6. This variation of weight is transmitted to a display device 5 through a transmission tool 4 and is displayed as the variation of the purity of SF6.Hereby, the purity is measured simply in the state which is ready for monitoring always.
JP166981A 1981-01-08 1981-01-08 Measuring method for purity of gas Granted JPS57114839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP166981A JPS57114839A (en) 1981-01-08 1981-01-08 Measuring method for purity of gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP166981A JPS57114839A (en) 1981-01-08 1981-01-08 Measuring method for purity of gas

Publications (2)

Publication Number Publication Date
JPS57114839A true JPS57114839A (en) 1982-07-16
JPH024850B2 JPH024850B2 (en) 1990-01-30

Family

ID=11507920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP166981A Granted JPS57114839A (en) 1981-01-08 1981-01-08 Measuring method for purity of gas

Country Status (1)

Country Link
JP (1) JPS57114839A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330175A2 (en) * 1988-02-22 1989-08-30 Kabushiki Kaisha Toshiba A method and an apparatus for evaluating the gas purifying ability of a gas purifier
CN102980831A (en) * 2012-11-01 2013-03-20 苏州金宏气体股份有限公司 Method for detecting content of mechanical impurities in natural gas
JP2015025765A (en) * 2013-07-29 2015-02-05 宇部興産株式会社 Method for measuring concentration of halogen molecule in halogen compound, and device for measuring concentration of halogen molecule in halide
GB2579598B (en) * 2018-12-05 2023-08-02 Secure Ground Solutions Ltd Trench shoring apparatus and its method of use

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350088A (en) * 1976-10-19 1978-05-08 Sumitomo Chem Co Ltd Production of spherical activated carbon

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350088A (en) * 1976-10-19 1978-05-08 Sumitomo Chem Co Ltd Production of spherical activated carbon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330175A2 (en) * 1988-02-22 1989-08-30 Kabushiki Kaisha Toshiba A method and an apparatus for evaluating the gas purifying ability of a gas purifier
CN102980831A (en) * 2012-11-01 2013-03-20 苏州金宏气体股份有限公司 Method for detecting content of mechanical impurities in natural gas
JP2015025765A (en) * 2013-07-29 2015-02-05 宇部興産株式会社 Method for measuring concentration of halogen molecule in halogen compound, and device for measuring concentration of halogen molecule in halide
GB2579598B (en) * 2018-12-05 2023-08-02 Secure Ground Solutions Ltd Trench shoring apparatus and its method of use

Also Published As

Publication number Publication date
JPH024850B2 (en) 1990-01-30

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