NYC-WTC_000201563

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7503 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: - 9 GridOneniritrSD^ 0.01124

Client Sample #: 09 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: iOO KeV # Grid Openings: 4 Analysis Date: 4/22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N o7~V ECS (Nonadb No F B C M >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND No: Coord <5p Elements)

TH/

Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance: y = 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 y = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ‘ ! 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 T remolite M = Matrix Non-Identified ' Actinolite NSD = No Structures Detected

NYC-WTC_000201571