JPS628522Y2 - - Google Patents
Info
- Publication number
- JPS628522Y2 JPS628522Y2 JP5869880U JP5869880U JPS628522Y2 JP S628522 Y2 JPS628522 Y2 JP S628522Y2 JP 5869880 U JP5869880 U JP 5869880U JP 5869880 U JP5869880 U JP 5869880U JP S628522 Y2 JPS628522 Y2 JP S628522Y2
- Authority
- JP
- Japan
- Prior art keywords
- methane
- concentration
- measured
- hydrocarbons
- value
- 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 49
- 229930195733 hydrocarbon Natural products 0.000 claims description 21
- 239000004215 Carbon black (E152) Substances 0.000 claims description 13
- 150000002430 hydrocarbons Chemical class 0.000 claims description 13
- -1 methane hydrocarbons Chemical class 0.000 claims description 7
- 238000005259 measurement Methods 0.000 description 14
- 230000002950 deficient Effects 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5869880U JPS628522Y2 (sv) | 1980-04-28 | 1980-04-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5869880U JPS628522Y2 (sv) | 1980-04-28 | 1980-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56159761U JPS56159761U (sv) | 1981-11-28 |
JPS628522Y2 true JPS628522Y2 (sv) | 1987-02-27 |
Family
ID=29653172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5869880U Expired JPS628522Y2 (sv) | 1980-04-28 | 1980-04-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS628522Y2 (sv) |
-
1980
- 1980-04-28 JP JP5869880U patent/JPS628522Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56159761U (sv) | 1981-11-28 |
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