NYC-WTC_000201275

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: BOE Volume (liters!: 180G Lab Group #: 7334 ' Filter Type /Lilter Area: MCE B85mm' Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: 09 _ Area Examined: 0.04496

GRID BOX: Magnification: ...20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/5/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of structure Nor H EDS VsE I>=5(5 (Nonadb No J B C M Chrys Amphibole Nonasb Ambig/ND "D No Coord <5p Elements I

•s

I'

Struct = >0.5n >5;I Aspect Ratio Grid acceptance;

7= Positive diffraction pattern properties conforming to <50% undisaolved filter, overlapped or folded Totals la boratoy identification criteria obssmed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M yH EDS spectrum conforming to laboratory holes or opaque areas icentification criteria observed Chrysotile : AMPHIBOLES i Amphibole F = Single Fiber Amesite B = Bundle (<3 fioers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos “remolite M = Matrix Non-Identified Actinolite fvSD = Me Structures Detected

CITY_21MC100_011275562

NYC-WTC_000201283