NYC-WTC_000228994

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ^.NYC BOE Volume (liters); 1800 Lab Group #: 7807 Filter Type / Filter Area: jMCE 385 mm=

Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496

GRID BOX: // Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/20/02

Analysis Performed By: zz^z ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 9 EDS No T :>=5^ (Nonadb F B C M Chrys Amphibole Monesb Amb«g/NC No Coord Elements) $

/i

Struct->C 5u > 5: i Aspect Ratio Grid areptance; Positive diffraclion pattern properties conforming to <50% undssoluedlSIter. ouariappett or folded Totals laboratory identification criteria observed <10% partcuiate ciwerage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F M >5u EDS spedtum conforming to laboratory holes or opaque areas identificatiDn critera observed Chrysotile AMPHIBOLES Amphibole' F= Single Fiber Amosite B = Bundle (<3 fibers <1 fiber biameter apart Crocidolite Ambiguous C = C.uster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldetitified NSD = No Structures Catacied

CITY_21MC100_002902019

NYC-WTC_000228994