ATI does not recommend the use of TDA-5C and other heated dust generators for biosafety cabinet verification. IEST RP034 ( National Environmental Science and Technology Association Recommended Procedure RP034, specifically describing HEPA/ULPA leak detection ) warns against this operation. NSF/ ANSI 49-2002, Annex F is specified for use with a Laskin Nozzle dust generator or the same basic dust generator. The TDA-5B is not the same type of dust generator as the Laskin Nozzle .
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