ASTM D7225-2006 Standard Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors《洗涤剂和垫圈消毒器的血液清洁效果的标准指南》.pdf
《ASTM D7225-2006 Standard Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors《洗涤剂和垫圈消毒器的血液清洁效果的标准指南》.pdf》由会员分享,可在线阅读,更多相关《ASTM D7225-2006 Standard Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors《洗涤剂和垫圈消毒器的血液清洁效果的标准指南》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 7225 06Standard Guide forBlood Cleaning Efficiency of Detergents and Washer-Disinfectors1This standard is issued under the fixed designation D 7225; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide is based on a standardized test soil correlat-ing to coagulated blood suitable for screening tests and theevaluat
3、ion of the cleaning efficiency of washer-disinfectorsused for reprocessing of surgical instruments. This guidestrictly deals with cleaning and does not describe any methodsthat are related to disinfection. See the Referenced Documentsin Section 2 for additional information.1.2 The values given in SI
4、 units are to be considered thestandard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and to determine theapplicability of regulatory
5、 limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 5343 Guide for Evaluating Cleaning Performance ofCeramic Tile CleanersD 4008 Test Method for Measuring Anti-Soil DepositionProperties of Laundry Detergents (Not Suitable for Deter-gent Ranking)D 4265 Guide for Evaluating Stain Re
6、moval Performancein Home LaunderingD 4488 Guide for Testing Cleaning Performance of Prod-ucts Intended for Use on Resilient Flooring and WashableWallsD 2960 Guide for Controlled Laundering Test Using Natu-rally Soiled Fabrics and Household AppliancesD 3050 Guide for Measuring Soil Removal fromArtifi
7、ciallySoiled Fabrics (Not Suitable for Detergent Ranking)2.2 AAMI Standards:3ANSI/AAMI ST35:2003 Safe handling and biological de-contamination of reusable medical devices in health carefacilities and in nonclinical settingsANSI/AAMI ST46:2002 Steam sterilization and sterilityassurance in health care
8、 facilities3. Summary of Guide3.1 The standardized test soil is based on a proteinousmatrix containing fibrinogen and thrombin in two separatedcomponents. Coagulation and formation of fibrin fibers areinduced after mixing the two components.3.2 The suggested methods are based on the removal ofstanda
9、rdized test soil as a result of mechanical or chemicalaction, or both, of the tested detergents or washer-disinfectors,or both. The screening test provides qualitative results forcleaning efficacy. After testing the practical situation in awasher-disinfector, the end result is visually checked forim
10、mediate evaluation. Minor residue is detected by using theperoxidase reaction.4. Significance and Use4.1 SignificanceDried blood represents a significant chal-lenge to cleaning surgical instruments. The water-solublecomponents of blood are easily rendered insoluble whenexposed to heat, chemical solu
11、tions, or time at room tempera-ture. The water insoluble component of blood is fibrin built upduring coagulation. These proteins bind quite readily to thesurfaces of surgical instruments making them difficult toremove even with the aid of chemical cleaning agents. Instru-ments contaminated with bloo
12、d residue after reprocessingrepresent a significant threat for infection to healthcare workersand patients. Healthcare facilities typically employ the use ofautomated instrument washers. These devices combine me-chanical action along with chemical cleaning agents in a stagedcleaning cycle designed t
13、o thoroughly clean surgical instru-ments. To function properly, these machines must be perform-ing at targeted mechanical efficiency and deliver the correct1This guide is under the jurisdiction of ASTM Committee D12 on Soaps andOther Detergents and is the direct responsibility of Subcommittee D12.16
14、 on HardSurface Cleaning.Current edition approved Feb. 1, 2006. Published March 2006.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary
15、page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.chemical cleaning agents at the correct temperature, a
16、t thecorrect dosage for the correct period of time.4.2 UseThe regular, periodic use of the blood soil test isa systemic challenge to the functioning of an automatedwasher. To properly challenge the cleaning device, the testmust be analogous to both the dried blood soil and to thephysical barriers pr
17、esented by surgical instruments. Thesephysical barriers include the box lock, or pivot joint of a hingedinstrument, the serrated tips, and crevices of surgical instru-ments. On the test coupon, the components of blood mimic thestate of dried blood on instruments. By mounting the soiledcoupon in a pl
18、astic holder the physical barriers represented bycracks and crevices of instruments (for example, box locks) aremimicked. Users are provided with an interpretation guide thataids them in interpreting results that are less than optimal. Forinstance, failure to remove the fibrin layer of blood soil (w
19、hichis water insoluble) indicates a problem with the chemicalcleaning agent(s). Failure to evenly remove a hemoglobin soilindicates a mechanical failure. Failure to remove any soilindicates either a catastrophic mechanical failure, or inappro-priate settings for the initial rinse stage.5. Reagents a
20、nd Materials5.1 Standardized Test Soil5.1.1 Composition:5.1.1.1 Component A:400-mg albumine, bovine, protease free;400-mg hemoglobin, bovine, lyophilized; and60-mg fibrinogen, bovine, lyophilized.5.1.1.2 Component B:400-mg albumine, bovine, protease free;400-mg hemoglobin, bovine, lyophilized; and12
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