NYC-WTC_000195956

NYC 9/11 Public Portal Document

< f lient Name: Applied 'Feclinology Services, Inc.

Phase Contrast Microscopy (PCM) Fiber Results JobNo. A96267 DURINGS Flow Air Filler Fibers Client Dale Duration Cone. Rale RItered PieMs rihp.rs Densilv TWA Sample # / Location Collecled (min.) ' 2 (liters/iiiin.) (liters) (Fibers/iiiiii ) (Fibers/cc) t +* 29-010997-106 1/9/97 0 0 0 100 0.5 0.64 Blank Pool Holes: I 29-010997-107 1/9/97 0 0 0 100 0.5 0.64 *** Blank Foot noIes: / 29-010997-108 1/9/97 5 510 2550 100 15 19.11 0.00288 Dur-Clean Room Decon OSWA 29-010997-109 1/9/97 5 510 2550 100 5 6.37 < 0.002 Dur-W/Side by Exit Sign Door OSWA 29-010997-110 1/9/97 5 510 2550 100 4 5.1 < 0.002 Dur-Dy Waste Room Decon OSWA 29-010997-111 1/9/97 5 510 2550 100 16 20.38 0.00307 Dur-By Doors to Area by Telephone OSWA 29-010997-112 1/9/97 5 510 2550 100 6 7.64 < 0.002 Dur-Microlrap ExhausI # I OSWA 29-010997-113 1/9/97 5 510 2550 100 4 5.1 < 0.002 Dur-Microlrap Exhaust #2 OSWA 29-010997-114 1/9/97 5 510 2550 100 5 6.37 < 0.002 Dur-Microlrap Exhaust #3 OSWA 29-010997-115 1/9/97 5 510 2550 100 3 3.82 < 0.002 Dur-Microtrap Exhaust #4 OSWA lorting Notes: ) Fibers/cc cannot be calculated for saini willi-ifo air volume. o Analyzed by: Fred Corirossi H Samples analyzed by NIOSII 7400(A) METHOD, Issue #2, 8/15/94; PAT Lab #08939; NYSDOII FLAP Lab #11480; Ibis repoK lelnics ONLY Io Ilie sample analysis expressed as nbers/sq mm of Filler area; ND = no fibers observed; Walton - Beckell grndicule field area 0.00785 inm2; Diiralion in minnles; TWA = 81 Ir I WA, calcutnilon assumes zero exposure for remainder of 8 hour to period not sampled; Eslimaled Limit of Detection = 5.5 Fibers / 100 fields or 7 fibers / mm2; Estimated relative standard deviation; Iniralab Sr = 0.27, Interlab Sr = 0.45

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NYC-WTC_000195956