FR2323142A1 - pH indicator for use in aquarium - uses transparent receiver which is immersed in water and which contains liquid indicator - Google Patents
pH indicator for use in aquarium - uses transparent receiver which is immersed in water and which contains liquid indicatorInfo
- Publication number
- FR2323142A1 FR2323142A1 FR7626814A FR7626814A FR2323142A1 FR 2323142 A1 FR2323142 A1 FR 2323142A1 FR 7626814 A FR7626814 A FR 7626814A FR 7626814 A FR7626814 A FR 7626814A FR 2323142 A1 FR2323142 A1 FR 2323142A1
- Authority
- FR
- France
- Prior art keywords
- water
- indicator
- receiver
- aquarium
- immersed
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 7
- 239000007788 liquid Substances 0.000 title abstract 3
- 239000007793 ph indicator Substances 0.000 title abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- 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
- G01N31/221—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 pH value
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biophysics (AREA)
- Farming Of Fish And Shellfish (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
The device indicates the pH of the water in an aquarium. A transparent receiver (3) is immersed in the water (5) of the aquarium (1). This receiver has an aperture which is permeable to gases but impermeable to the water in the aquarium under conditions of complete immersion. The aperture may be a cover or cap on the upper end of the receiver or, alternatively, on its lower end. In another arrangement, covers are provided on both ends of the receiver. The receiver contains a liquid pH indicator, and a section containing an air cushion (6). The coloration of the liquid indicator determines the pH of the water. The method depends on the use of the carbon dioxide content of the water as a measure of its pH. The device obviates the need to take a sample of the water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7527913 | 1975-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2323142A1 true FR2323142A1 (en) | 1977-04-01 |
Family
ID=6655231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7626814A Withdrawn FR2323142A1 (en) | 1975-09-04 | 1976-09-06 | pH indicator for use in aquarium - uses transparent receiver which is immersed in water and which contains liquid indicator |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5241590A (en) |
| AU (1) | AU1740376A (en) |
| BE (1) | BE845858A (en) |
| CA (1) | CA1075572A (en) |
| CH (1) | CH594886A5 (en) |
| DK (1) | DK400676A (en) |
| ES (1) | ES234152Y (en) |
| FR (1) | FR2323142A1 (en) |
| IT (1) | IT1064953B (en) |
| NL (1) | NL186197C (en) |
| SE (1) | SE429066B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041107A1 (en) * | 1990-12-21 | 1992-07-02 | Langenbruch Paul Friedrich Dr | Tube for continuous, long-term pH measurement - in liquids of gas permeable, indicator-impermeable material |
-
1976
- 1976-08-26 CH CH1082476A patent/CH594886A5/xx not_active IP Right Cessation
- 1976-09-02 AU AU17403/76A patent/AU1740376A/en not_active Expired
- 1976-09-02 SE SE7609702A patent/SE429066B/en not_active IP Right Cessation
- 1976-09-03 JP JP10505676A patent/JPS5241590A/en active Granted
- 1976-09-03 BE BE170359A patent/BE845858A/en not_active IP Right Cessation
- 1976-09-03 DK DK400676A patent/DK400676A/en not_active Application Discontinuation
- 1976-09-03 ES ES1976234152U patent/ES234152Y/en not_active Expired
- 1976-09-03 IT IT2688676A patent/IT1064953B/en active
- 1976-09-03 CA CA260,508A patent/CA1075572A/en not_active Expired
- 1976-09-03 NL NL7609851A patent/NL186197C/en not_active IP Right Cessation
- 1976-09-06 FR FR7626814A patent/FR2323142A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041107A1 (en) * | 1990-12-21 | 1992-07-02 | Langenbruch Paul Friedrich Dr | Tube for continuous, long-term pH measurement - in liquids of gas permeable, indicator-impermeable material |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1075572A (en) | 1980-04-15 |
| JPS5241590A (en) | 1977-03-31 |
| DK400676A (en) | 1977-03-05 |
| IT1064953B (en) | 1985-02-25 |
| ES234152Y (en) | 1978-08-16 |
| NL186197B (en) | 1990-05-01 |
| JPS5631539B2 (en) | 1981-07-22 |
| ES234152U (en) | 1978-04-01 |
| AU1740376A (en) | 1978-03-09 |
| BE845858A (en) | 1976-12-31 |
| CH594886A5 (en) | 1978-01-31 |
| SE7609702L (en) | 1977-03-05 |
| SE429066B (en) | 1983-08-08 |
| NL7609851A (en) | 1977-03-08 |
| NL186197C (en) | 1990-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |