DE2257838C3 - Verfahren und Vorrichtung zur Überwachung von Zeit- und Temperaturbedingungen - Google Patents
Verfahren und Vorrichtung zur Überwachung von Zeit- und TemperaturbedingungenInfo
- Publication number
- DE2257838C3 DE2257838C3 DE2257838A DE2257838A DE2257838C3 DE 2257838 C3 DE2257838 C3 DE 2257838C3 DE 2257838 A DE2257838 A DE 2257838A DE 2257838 A DE2257838 A DE 2257838A DE 2257838 C3 DE2257838 C3 DE 2257838C3
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- reaction product
- indicator
- chamber
- time
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 238000012544 monitoring process Methods 0.000 title claims description 9
- 239000007795 chemical reaction product Substances 0.000 claims description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 15
- 108090000790 Enzymes Proteins 0.000 claims description 14
- 102000004190 Enzymes Human genes 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 230000002255 enzymatic effect Effects 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 108010046334 Urease Proteins 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 238000006911 enzymatic reaction Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 239000007793 ph indicator Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000002775 capsule Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
- G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7115855A SE376657B (https=) | 1971-12-10 | 1971-12-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2257838A1 DE2257838A1 (de) | 1973-06-20 |
| DE2257838B2 DE2257838B2 (de) | 1978-01-12 |
| DE2257838C3 true DE2257838C3 (de) | 1978-09-07 |
Family
ID=20301333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2257838A Expired DE2257838C3 (de) | 1971-12-10 | 1972-11-25 | Verfahren und Vorrichtung zur Überwachung von Zeit- und Temperaturbedingungen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3822189A (https=) |
| JP (1) | JPS4866479A (https=) |
| DE (1) | DE2257838C3 (https=) |
| GB (1) | GB1366797A (https=) |
| SE (1) | SE376657B (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE380098B (https=) * | 1974-02-21 | 1975-10-27 | Food Control | |
| CA1054034A (en) * | 1975-06-20 | 1979-05-08 | Barbara J. Bruschi | Multilayer analytical element |
| USRE30267E (en) * | 1975-06-20 | 1980-05-06 | Eastman Kodak Company | Multilayer analytical element |
| SE414509B (sv) * | 1979-05-17 | 1980-08-04 | Kockums Chem | Pulverformig substratkomposition i vilken ingar hydrofobt enzymsubstrat adsorberat pa en partikelformig bevare jemte anvendning av kompositionen i tid-temperatur integrerande indikatoranordning av enzymatisk typ |
| JPS59124956A (ja) * | 1982-12-29 | 1984-07-19 | Sakata Shokai Ltd | 熱履歴検知用の熱インジケ−タ− |
| US4826762A (en) * | 1987-10-23 | 1989-05-02 | Massachusetts Industry Of Technology | Enzymatic temperature change indicator |
| US5085802A (en) * | 1991-01-31 | 1992-02-04 | Oscar Mayer Foods Corporation | Time temperature indicator with distinct end point |
| GB9902817D0 (en) | 1999-02-10 | 1999-03-31 | Temp Tell Limited | Identification of temperature exposure |
| JP2001272283A (ja) * | 2000-03-23 | 2001-10-05 | Konica Corp | 温度履歴インジケータ |
| US7770534B2 (en) | 2001-08-10 | 2010-08-10 | Isadore Cooperman | Changed condition indicator |
| US6694913B2 (en) * | 2001-08-10 | 2004-02-24 | Isadore Cooperman | Changed condition indicator |
| FI116318B (fi) * | 2003-02-27 | 2005-10-31 | Avantone Oy | Painetut TTI-indikaattorit |
| FR2896311B1 (fr) * | 2006-01-18 | 2008-03-21 | Galdino Barbieri | Detecteur de depassement d'une temperature limite |
| US8695528B2 (en) * | 2011-10-04 | 2014-04-15 | Sanko Tekstil Isletmeleri Sanayi Ve Ticaret A.S. | Intelligent temperature indicator label and method |
| KR20140126552A (ko) * | 2013-04-23 | 2014-10-31 | 인텔렉추얼디스커버리 주식회사 | 동결 표시기 |
| US9739757B2 (en) * | 2013-12-04 | 2017-08-22 | Temptime Corporation | Condition change labels |
| GB201517513D0 (en) * | 2015-10-05 | 2015-11-18 | The Technology Partnership Plc | Data logging device |
| GB2552167A (en) | 2016-07-11 | 2018-01-17 | Intray Ltd | Time temerature indicator label |
| CN106996930B (zh) * | 2017-05-03 | 2025-07-04 | 中国标准化研究院 | 食品用时间温度指示器 |
-
1971
- 1971-12-10 SE SE7115855A patent/SE376657B/xx unknown
-
1972
- 1972-11-25 DE DE2257838A patent/DE2257838C3/de not_active Expired
- 1972-12-07 GB GB5646072A patent/GB1366797A/en not_active Expired
- 1972-12-08 US US00313316A patent/US3822189A/en not_active Expired - Lifetime
- 1972-12-11 JP JP47124239A patent/JPS4866479A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3822189A (en) | 1974-07-02 |
| GB1366797A (en) | 1974-09-11 |
| SE376657B (https=) | 1975-06-02 |
| DE2257838A1 (de) | 1973-06-20 |
| DE2257838B2 (de) | 1978-01-12 |
| JPS4866479A (https=) | 1973-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| EHJ | Ceased/non-payment of the annual fee |