NYC-WTC_000229172

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1864 Lab Group #: 7953 Filter Type / Filter Area; MCE 385 mm’ Lab Sample #: 7 Grid Opening Size: 0,01124 Client Sample #: 09 , Area Examined: 0.04496 mm’ GRID BOX: Magnification: 20,000 GRID ID; AcceleratinE Voltage; 100 KeV # Grid Openings: 4 Analysis Pate: 6/4/02

Analysis Performed By; ROMAN PEYSAKIIOV

GO. Structure Structure Type Length TootStrudure Nor V EDS r No (Nonadb F 6 C M «05p Chrys Amphitiole Nonasb Antigfl4D . No; Coord <5p Etemefts)

rn 2. A

Struct = > 0.5g > 5:1 Aspect Ratio Grid aocepBrce: 'j- Posftive diffractfffl, paterri properties conforitiing to <50% untgssolved niter, overlapped or folded Totals laixsratorv identification cnterraobse wed <10% pariiojlate overage >50% coverage ate (east 20 unftiltjed or overlapped grid squares <5% F B C M >5p EOS spectrum conformng to laboratoiy holes or opaque ares identification cntsria observed ChrysotiJc AMPHtBQLES Amphibole F=^ Single Fiber Amosite Crocidolite . Amhiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster {>3 Intersectionsl 5 Anttiophyllite i Non-AsbMtos Tremolite M^Matnx Actinolite Non-Identified NSO = No Structures Deiected

CITY_21MC100_002902358

NYC-WTC_000229172