CAGE PROCESSING in Animal Facilities - Felasa

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9.2 DepositsFigure 9-2 Cage parts with depositsTable 9-2Source and causesUrinal scale and/or lime can cause deposits on thesurface of the items.When washing items with hot water, blood residues,due to coagulation, can cause deposits, too.Washing-related residues also lead to deposits.Using water of insufficient quality can result in residuesor desposits, especially on items with gaps andhollows where liquids cannot run off.Deposits can also occur during steam sterilisationwhen bad quality steam or harmful ingredients areused.Preventative measuresItems should be washed with acid detergents.A manual pre-washing and/or soaking of items incold water is recommended, also used with alkalinedetergents.All items must be sufficiently rinsed to ensure thatdetergents are fully removed.The use of softened water or preferabledemineralised water for rinsing is recommended.When generating steam, it should be conform to thespecifications in EN 285.9.3 Stress / micro cracksFigure 9-3 Cage parts with micro cracks62Cage Processing in Animal Facilities · 4th issue · 2013
Table 9-3Source and causesStress / micro crack sensitive plastics, like polysulfoneor polyphenylene oxide (Noryl®), can sufferstress / micro cracks during steam sterilisation, whenusing unsuitable rinse aids (or anti spotting agents)for rinsing beforehand.Severe mechanical impact due to a mishandling ofcage bases (incorrect emptying, vigorous scrapingout of bedding, pushing of bases over abrasive andedged surfaces) can cause crazing and scratchesthat might lead to more severe cracking and otherdamages in the process of steam sterilisation.Using unsuitable steam sterilisation bags for plasticitems can lead to stress / micro cracks or even destructionof the items.Preventative measuresThe use of special, material adjusted rinse aids isrecommended. Please contact the cage manufacturerin advance!Suitable utensils, like plastic scrapers and handbrushes, are recommended. A careful handling,carrying, and accurate storing of items should beensured.It is recommended to use suitable, steam permeablesteam sterilisation bags or closed, steampermeable steam sterilisation containers.9.4 DeformationsFigure 9-4 Cage parts with deformationsTable 9-4Source and causesWhen washing and sterilising items with excessivetemperatures, depending on the type of plastics,may cause material deformations.High stacking of cage bases for carrying or steamsterilisation can cause material deformations.Sterilising cage bases with closed and locked topscan cause deformations in the locking devices (e.g.holders), that might lead to a loss in function.Preventative MeasuresFollowing the maximum allowable washing andsteam sterilisation temperature and time for therespective plastics (please refer to chapter 3) isstrongly recommended.Please note the manufacturers’ instructions!Stacking heights, depending on cage dimension andmaterial, should be reduced to 20 bases max duringthese processes.Please note the manufacturers’ instructions!Cage bases and tops should be sterilised separately,or, when tops are closed, they should be unlocked.Cage Processing in Animal Facilities · 4th issue · 2013 63
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CAGE PROCESSINGin Animal Facilities
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CAGE PROCESSINGin Animal Facilities
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Index1 Introduction ...............
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7.1 Requirements ..................
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2 Cage processing cyclesThe followi
Page 11 and 12:
3.2 Materials for processingWhen de
Page 13 and 14: • They should be easy and conveni
Page 15 and 16: • Height-adjustable shelves ensur
Page 17 and 18: Table 4-2Option Advantages Disadvan
Page 19 and 20: Below you will find a description o
Page 21 and 22: Figure 4-10 Tunnel cage washer4.3.1
Page 23 and 24: WashingHot water mixed with deterge
Page 25 and 26: Loading systemsIn cabinet cage wash
Page 27 and 28: 4.3.2.1.3 Rinse aidRinse aids shoul
Page 29 and 30: Semiautomaticdispensing*bedding is
Page 31 and 32: Semi-automaticsystemsmultiple filli
Page 33 and 34: PermissionsWith frequent changes in
Page 35 and 36: 4.6.2.1 Basic lock types for H 2O 2
Page 37 and 38: configurations can thus require ind
Page 39 and 40: 4.6.3.2 Processual requirementsPAA
Page 41 and 42: Lead mg/l -heavy metal residues (ex
Page 43 and 44: For reasons of odour, exhaust air o
Page 45 and 46: 5.6 Installation data and consumpti
Page 47 and 48: 6.2 Start up of operationIt is part
Page 49 and 50: 6.9 Routine checks and measuresThe
Page 51 and 52: 7.2.1.1.2 Test setup1 inside at the
Page 53 and 54: 7.2.2 Test procedures for evaluatin
Page 55 and 56: surfaces stay soil free. For an eve
Page 57 and 58: 7.4 Test procedure for confirming t
Page 59 and 60: Table 7-6WasherItems for processing
Page 61 and 62: with rinse aid, for example, can be
Page 63: 9 Potential defects and damages in
Page 67 and 68: Table 9-6Sources and causesWashing
Page 69 and 70: DIN 1986:Technical Rules for Drinki
Page 71 and 72: Detergent liquor / detergent soluti
Page 73 and 74: ProcessingProcessing means washing,
Page 75 and 76: Final provisions:1. This brochure d
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CAGE PROCESSING in Animal Facilities - Felasa

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