NYC-WTC_000218001

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lah Group #: 6775 Filter Type / Filter Area: MCE 3^)5 mm- Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample #: EO-5 Area Examined: ij 04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: iOO KeY it Grid Openings: 4 Analysis Dale: 2 22.02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS No (Nonadt F B C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) : /

3

Struct = > 0.5u >5:1 Aspect Ratio Gnd acceptance: 7= Positive diffraction pattern properties conforming to "50% undissolved filter, overiapped or folded Totals laboratory identification criteria obsenred ":10% particulate coverage >50% coverage ale least 20 unfolded or overiapped grid squares <5% F B I C i M i >5! = EDS spectrum conforming to laporatory holes or opaque areas identification criteria observed Chry'sotile AMPHIBOLES Amphibole 1 F = Single Fiber S = Bundle (<3 libers <1 fiber diameter apart Amosite Crocidolite Anthophyllite Ambiguous Non-Asbestos rn C = Cluster (>3 Intersections) T remolite M = Matrix Actinolite j Non-Ideniified : NSD = No Structures Detected

CITY_21MC100_002878216

NYC-WTC_000218001