NYC-WTC_000203492

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1952 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 5 Area Examined: 0 04496 mm^

GRID BOX: Magnification: 20.000 GRID ID: # Grid Openings: 4 w Accelerating Voltage: 100 KeV Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of structure n or EDS No (Nonadb F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements)

I i/Vz-TW 2? 2 Ct

I

I I T T T T

Fhoio No (from 1 in 3 asoesios containing samples) Gnd acceptance Struct = > 0 Su >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive diffraction pattern properties conforming to <10% particuiate coverage >50% coverage ate laooratory idennficaiion cntena ooserved least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M -------- 1 tDS spectrum conforming to laboratory 'denlification cntena ooserved Chrysotile ! amphiboles I ■Amphibole F = Single Fiber Amosite £ = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite C = Cluster (>3 Intersections) Tremolite Non-Asbestos M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_0 03058251

NYC-WTC_000203492