NYC-WTC_000215341

NYC 9/11 Public Portal Document

TEM x4sbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #: 6660 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/13/02

Analysis Performed By: ROMAN PEYSAKHOV

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

772^ (f (I 4 a 10

Struct = > 0.5|u >5:1 Aspect Ratio Grid acceptance: 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory Identification criteria observed < 10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u a/= EDS spectrum conforming to laboratory - holes or opaque areas identification criteria observed Cluysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos I ■ Tremolite M = Matrix Non-Identified ! Actinolite NSD = No Structures Detected

CITY_21MC100_002872222

NYC-WTC_0002 15341