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About This Item
Full Description
This edition of the Standard (NSF/ANSI 49-2011) includes the following revisions:
Issue 27 - Class I and III
Updates to the Class I and III definitions in Section 3.
Issue 39 - Sound level and Adhesives
Updates to reflect OSHA guidelines for noise level readings in Section F.11.2 and also updates Section H.6.3 to reflect the IEST-RP-CC001 Section 8.3.2 recommendations for adhesives used in filter repair.
Issue 42 - Pressure decay test/Soap bubble leak test
Updates to the language in Annex F, section F.1.1.
Issue 43 - Canopy Requirements and Performance
Updates the language in 5.4 Canopy connect exhaust and in 5.25.4 Type A1 or A2 exhaust alarm to allow canopy testing for class II, type A1 & A2 cabinets. This same language is already part of Annex F (F.7.3.3).
Document History
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NSF/ANSI 49-2022
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Most Recent
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NSF/ANSI 49-2020
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF/ANSI 49-2019
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2018
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2016
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2014
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2012
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2011
viewing
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2010a
Biosafety Cabinetry: Design, Construction, Performance, and Field Certification- Historical Version
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NSF 49-2009
NSF 49 Class II (Laminar Flow) Biosafety Cabinetry- Historical Version
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NSF 49-2008
NSF 49 Class II (Laminar Flow) Biosafety Cabinetry- Historical Version
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NSF 49-2007
NSF 49 Class II (Laminar Flow) Biosafety Cabinetry- Historical Version
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NSF 49-2007 Annex F
Class II (laminar flow) biosafety cabinetry -Field testing annex,Annex F to NSF/ANSI 49-2007- Historical Version
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NSF 49-2004a
NSF 49 Class II (Laminar Flow) Biosafety Cabinetry- Historical Version
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NSF 49-04
NSF 49 Class II (laminar flow) Biosafety Cabinetry- Historical Version
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NSF 49-2004 Annex F
Class II (laminar flow) biosafety cabinetry -Field testing annex,Annex F to NSF/ANSI 49-04- Historical Version
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NSF 49-02e
NSF 49 Class II (laminar flow) Biosafety Cabinetry- Historical Version
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NSF 49-2002 Annex F
Class II (laminar flow) biosafety cabinetry -Field testing annex,Annex to NSF/ANSI 49-02- Historical Version
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NSF 49-2002
Class II (Laminar Flow) Biohazard Cabinetry- Historical Version
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NSF 49-1992
Class II (Laminar Flow) Biohazard Cabinetry- Historical Version