NYC-WTC_000201259

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name:' NYC BOE Volume (liters): 1840 Lab Group #: 7325 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 11 Grid Opening Size: 0.01124

Client Sample #: 11 AreaExatnined: 0.04496 mip^ GRID BOX: Magnificats^ 20,000 GRID ID: Accelerating Voltage: 100 .KeV # Grid Openings: 4 Analysis Date: 4/4/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length tC of structure ' Nor n ' =DS (Nonadb . ... No -F' B C-: M >=05 pi ■=5p Chrys Airptiioole Nonasb __Ambig/ND No Coord <5(j Elements)

Cl’

Struct = > C.5li > Sir .Aspect Ratro Grid accsptance: '

0 = Positive diffraction pattern properties conforming to <50% undissolved tiller, overlapped or folded Totals Iaborato7 identification criteria observed <10% particulate coverage >50%. coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ■1= EDS spectrum confor.-ning to laboratori' holes or opaque areas identification criteria observed Chrysotile i AMPHIBOLES' Amphibole F = Single Fiber .Amesite B = Bu.ndie l<3 fibers <1 fiber diarrieter apan Crocidolite i Ambiguous C - Cluster (>3 Intersections) Anthophyllite i Nlon-Asbestos Tremolite i M = Matrix N on-Identified Actinoliie i NSD = Nc Structures’Detected

CITY_21MC100_011275542

NYC-WTC_000201269