CA2477939A1 - Multiple barrier filter apparatus - Google Patents
Multiple barrier filter apparatus Download PDFInfo
- Publication number
- CA2477939A1 CA2477939A1 CA002477939A CA2477939A CA2477939A1 CA 2477939 A1 CA2477939 A1 CA 2477939A1 CA 002477939 A CA002477939 A CA 002477939A CA 2477939 A CA2477939 A CA 2477939A CA 2477939 A1 CA2477939 A1 CA 2477939A1
- Authority
- CA
- Canada
- Prior art keywords
- filter
- water
- membrane
- fluid communication
- viral
- 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.)
- Abandoned
Links
- 230000004888 barrier function Effects 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 179
- 239000012528 membrane Substances 0.000 claims abstract description 113
- 239000012530 fluid Substances 0.000 claims abstract description 81
- 230000003612 virological effect Effects 0.000 claims abstract description 71
- 239000000356 contaminant Substances 0.000 claims abstract description 59
- 230000001580 bacterial effect Effects 0.000 claims abstract description 58
- 238000004891 communication Methods 0.000 claims abstract description 57
- 241000272525 Anas platyrhynchos Species 0.000 claims abstract description 11
- 230000000845 anti-microbial effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000001223 reverse osmosis Methods 0.000 claims description 37
- 238000001914 filtration Methods 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 16
- 239000011800 void material Substances 0.000 claims description 12
- 239000012569 microbial contaminant Substances 0.000 claims description 10
- 239000012141 concentrate Substances 0.000 claims description 7
- 238000011045 prefiltration Methods 0.000 claims description 7
- 238000002203 pretreatment Methods 0.000 claims description 6
- 241000700605 Viruses Species 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 4
- 230000000840 anti-viral effect Effects 0.000 claims 2
- 229940121357 antivirals Drugs 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 239000004599 antimicrobial Substances 0.000 abstract description 7
- 210000002445 nipple Anatomy 0.000 description 17
- 230000000813 microbial effect Effects 0.000 description 12
- 230000002906 microbiologic effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002223 anti-pathogen Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/074—Arrangement of water treatment devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
- B01D35/301—Constructions of two or more housings
- B01D35/303—Constructions of two or more housings the housings being modular, e.g. standardised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/20—Accessories; Auxiliary operations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/30—Filter housing constructions
- B01D2201/301—Details of removable closures, lids, caps, filter heads
- B01D2201/302—Details of removable closures, lids, caps, filter heads having inlet or outlet ports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4023—Means for connecting filter housings to supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/46—Several filtrate discharge conduits each connected to one filter element or group of filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
- B01D61/081—Apparatus therefor used at home, e.g. kitchen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Clinical Laboratory Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36145402P | 2002-03-04 | 2002-03-04 | |
| US60/361,454 | 2002-03-04 | ||
| US37487002P | 2002-04-23 | 2002-04-23 | |
| US60/374,870 | 2002-04-23 | ||
| PCT/US2003/006419 WO2003076044A1 (en) | 2002-03-04 | 2003-03-04 | Multiple barrier filter apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2477939A1 true CA2477939A1 (en) | 2003-09-18 |
Family
ID=27807921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002477939A Abandoned CA2477939A1 (en) | 2002-03-04 | 2003-03-04 | Multiple barrier filter apparatus |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1487560A4 (es) |
| AU (1) | AU2003217874A1 (es) |
| CA (1) | CA2477939A1 (es) |
| MX (1) | MXPA04008560A (es) |
| WO (1) | WO2003076044A1 (es) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4303194A1 (en) * | 2022-07-08 | 2024-01-10 | Compagnie Gervais Danone | Cartridge for a system treating and dispensing an aqueous liquid |
| WO2024008978A1 (en) * | 2022-07-08 | 2024-01-11 | Compagnie Gervais Danone | Cartridge for a system treating and dispensing an aqueous liquid |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8123959B2 (en) | 2007-11-28 | 2012-02-28 | 3M Innovative Properties Company | Treatment of solid particles with functional agents |
| CN103084002B (zh) * | 2013-02-06 | 2014-11-19 | 沛毅工业股份有限公司 | 具有组合式滤材的过滤器 |
| US10865125B2 (en) * | 2015-01-07 | 2020-12-15 | Brita Gmbh | Liquid treatment cartridge, set of such cartridges and method of manufacturing it |
| TWI702931B (zh) * | 2015-09-02 | 2020-09-01 | 德商碧然德有限公司 | 用於形成液體處理設備的頭部部分、組裝其之部件與方法和液體處理設備 |
| WO2018001458A1 (en) * | 2016-06-28 | 2018-01-04 | Brita Gmbh | Device for forming a liquid treatment apparatus and liquid treatment apparatus |
| CN106284530A (zh) * | 2016-08-19 | 2017-01-04 | 湖南湘星环保水处理设备有限公司 | 一种双泵变频供水装置 |
| CN106335971A (zh) * | 2016-08-26 | 2017-01-18 | 江苏嘉恒环境科技有限公司 | 一种可自动更换滤芯的过滤装置 |
| US11684892B2 (en) | 2016-12-01 | 2023-06-27 | Pentair Residential Filtration, Llc | Water filtration system and method |
| CN111712465A (zh) * | 2017-09-12 | 2020-09-25 | A.O.史密斯公司 | 结合消毒特征的水龙头 |
| EP4001219A4 (en) * | 2019-07-18 | 2023-07-26 | Yzyao Yadong Plastic Co., Ltd. | WATER PURIFIERS AND CONTROL VALVE FOR USE IN WATER PURIFIERS |
| US20240033664A1 (en) * | 2019-07-18 | 2024-02-01 | Yuyao Yadong Plastic Co., Ltd. | Faucet water purifier and filtering device for faucet water purifier |
| WO2021008504A1 (zh) * | 2019-07-18 | 2021-01-21 | 余姚市亚东塑业有限公司 | 龙头净水器及用于龙头净水器的控制阀 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650586A (en) * | 1983-09-26 | 1987-03-17 | Kinetico, Inc. | Fluid treatment system |
| JPS60236689A (ja) * | 1984-05-09 | 1985-11-25 | 松下電器産業株式会社 | 給水装置 |
| JPS62501274A (ja) * | 1984-12-18 | 1987-05-21 | セルスドン，レスリ−・ドナルド | フィルターユニット及びこれを有する濾過装置 |
| US4713175A (en) * | 1986-08-05 | 1987-12-15 | Nimbus Water Systems, Inc. | Water purifier comprising stages mounted side-by-side to unitary header |
| US5282967A (en) * | 1989-03-06 | 1994-02-01 | Morita Kagaku Kogyo Co., Ltd. | Method for feeding germ-free pure water |
| DE9103053U1 (de) * | 1991-03-14 | 1992-01-30 | Scheurer, geb. Hestler, Anna, 7922 Herbrechtingen | Filter |
| US5456831A (en) * | 1993-05-24 | 1995-10-10 | Sullivan; John L. | Portable water filtering device |
| US5389254A (en) * | 1993-08-13 | 1995-02-14 | Olin Corporation | Water treatment system |
| JPH07148490A (ja) * | 1993-11-29 | 1995-06-13 | Funai Electric Co Ltd | 蛇口用逆止弁を備えた強酸性水生成装置 |
| US5510031A (en) * | 1994-09-13 | 1996-04-23 | Ametek, Inc. | Faucet assembly with replaceable filter |
| JP3585586B2 (ja) * | 1995-07-28 | 2004-11-04 | 松下電器産業株式会社 | 浄水器付混合水栓 |
| KR0182567B1 (ko) * | 1996-04-02 | 1999-04-15 | 김광호 | 정수기 |
| JP3403738B2 (ja) * | 1997-06-19 | 2003-05-06 | キュノ・インコーポレーテッド | 平行流フィルタヘッド |
| US6001249A (en) * | 1997-11-06 | 1999-12-14 | Dart Industries Inc. | Multi-stage water filter system |
| US5993648A (en) * | 1998-03-17 | 1999-11-30 | American Standard, Inc. | Water filtration device with a water fountain outlet and a faucet outlet with flow viewing apparatus |
| US6027647A (en) * | 1998-05-20 | 2000-02-22 | Northcut; Donald A. | Multi-element liquid filter system with flushing and filtering circuits |
| US6099735A (en) * | 1998-06-04 | 2000-08-08 | Kelada; Maher I. | Counter top reverse osmosis water purification system |
| US6436282B1 (en) * | 2000-08-08 | 2002-08-20 | Plymouth Products, Inc. | Flow control module for RO water treatment system |
-
2003
- 2003-03-04 WO PCT/US2003/006419 patent/WO2003076044A1/en not_active Application Discontinuation
- 2003-03-04 EP EP03713845A patent/EP1487560A4/en not_active Withdrawn
- 2003-03-04 CA CA002477939A patent/CA2477939A1/en not_active Abandoned
- 2003-03-04 MX MXPA04008560A patent/MXPA04008560A/es active IP Right Grant
- 2003-03-04 AU AU2003217874A patent/AU2003217874A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4303194A1 (en) * | 2022-07-08 | 2024-01-10 | Compagnie Gervais Danone | Cartridge for a system treating and dispensing an aqueous liquid |
| WO2024008978A1 (en) * | 2022-07-08 | 2024-01-11 | Compagnie Gervais Danone | Cartridge for a system treating and dispensing an aqueous liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA04008560A (es) | 2005-06-08 |
| EP1487560A1 (en) | 2004-12-22 |
| AU2003217874A1 (en) | 2003-09-22 |
| EP1487560A4 (en) | 2005-07-06 |
| WO2003076044A1 (en) | 2003-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |