NYC-WTC_000227849

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1840 Lab Group #: 6685 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample 06 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRIODl Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor V EDS (Nonadb No F B C M >■05 u ;>=5|J Chrys Amphibole Nonasb Ambig/ND No Coord <5u Etemens)

V -4— ft ^(2 =

Struct« > 0.5h >5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties oonforming to <50% ufldisaolved Otter, overtapped orfolded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfoWad or overlapped grid sguares <5% F B C M >5p V= EDS spectrum conforming to laboratoty holes or opaque areas identification criteria observed Chrysotile i AMPHIBOLY Amphibole F s Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 libers <1 fiber diameter apart C > Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002899380

NYC-WTC_000227849