NYC-WTC_000196956

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #: 6932 Filter Type / Filter Area: MCE 385 Lab Sample #: 13 Grid Opening Size: 0.01124

Client Sample #: 15 Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRipiD: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/4/02

Analysis Performed By: ROMAS PEYSAKHOV

GO, Structure Structure Type Length IC of Structure Nor v EDS (Nonadb No C M >=05 u Nonasb ] Ambig/ND No Coord "r —I— <5p Chrys Amphibole I Elements)

Pz -4-

i^fe— — 6

— H

Struct = > 0 5p > 3)1 Aspect Ratio Grid acceptance)

4= Positive diffraction pattern properties conforming to <50% uncissoived filter, over'apped or folded fotals <10% particulate coverage >50% coverage ale laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% i' ) F I B I C i VI , >5q y= EDS spectrum conforming to laboratory holes or opaque areas i identification criteria obsenjed Chrysotile amphiboles Aiiiphibi)le F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiciious i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite I Non-ldentified j NSO = No Structures Detected

CITY_21MC1OO_OO3O44276

NYC-WTC_000196956