NYC-WTC_000208248

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1912 Lab Group #: 8828 Filter Type / Filter Area: VICE 385 mm^ Lab Sample #: 4 Grid Opening Size: 0.01124

Client Sample #: 04 Area Examined: 0.04496 mm-

GRID BOX: Magnificatiorr 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structurs Type Length ID of Structure N or 9 EOS : (Nonadb ; No Coord No F nC M >=05 p <5p i>=5p Chrys Amphibole Nonasb Ambig/ND Elements)

I i

Struct = > 0.5u >5:1 Aspect Ratio Grid acceptance:

\ = Positive diffraction pattern properties conform; ig to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >5C% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B I C 1 M ( >5u '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chi'ysotile ------- r——— AMPHIBOLES Amphibole F = Single Fiber Amosite B' = Bundle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO3O21236

NYC-WTC_000208248