NYC-WTC_000229290

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Ciient.Name: NYC BOE Volume (liters): 1808 Lab Group #; 8108 Filter Type / Filter Area: MCE 385 mm" Lab Sample #; 9 Grid Opening Size: 0.01124 Client Sample #: 11 Area Examined: 0.04496 mm' GRIP BOX: Magnification: 20 000 GRIP IP; Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 6/15/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Stnjcture Type Length 10 of Structure Nor V EDS (Nonadb No F B C M >=05 u >=5p Chrys Amphibole Nonasb AmbigW No Coord <StJ Elements)

A'-,

Struct = >0.Sp > 5;J Aspect Ratio Gridscce^rtance; t) = Positive diffraction pattern properfies conforming to <50% urtdissotvsd nter. overtapped or folded Totals laboratory identification criteria observed < 10% particulate cowrage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B C M 'l~ EDS spectrum conforming to laboratory holes or opaque areas idertSficattort criteria observed Chrysotile AMPHIBOLES Amphibole F = Singie Fiber Amosite e = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Inieraecflons) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSO = No Structures Detected

CITY_2IMCl00_000491876 NYC-WTC_000229290