NYC-WTC_000217807

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NA^C BOE Voltimc (liters): 1920 Lab Group #: 6562 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 05 Area Examined: 0.04496 mm/

GRID BOX: Magnification: 20.000 GRID ID: £C?O Accelerating Voltage: 100 KeV # Grid Openings: 4 ■Analysis Date: 2/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID oi Structure \ or 7 EDS lAonaao No F B C M >=05 (J Chrys Amphibole Nonasb i Ambig/ND ! No Coord <5m Elements) 7

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Struct = > 0 5p >5:1 Aspect Ratio Grid acceptance: m’= Positive diffraction pattern properties conforming to ‘=0% undissolved filler, overtapped or folded Totals laboratory identification criteria observed *:10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F B C M ^= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chry'sotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous +■ C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-Asbestos 'T I i t M = Matrix Actinolite Non-Identified NSD = No Structures Detected i

CITY_21MC100_002877890

NYC-WTC_0002 17807