NYC-WTC_000212399

NYC 9/11 Public Portal Document

TEM Asbestosjairl Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7344 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size: 0.111'124

Client Sample #: 07 Area Examined: 0.04496 mm^

(^RID BOX: Magnification: 20,000 (;RID ID: -T Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/6/02

Analysis Performed By: MARK PEYSAKHOV

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

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Struct = > 0.5p > 5:1 Aspect Ratio Gnd acceptance: \ = Positive diffraction pattern prooerties conforming to <50% undissolved filter, overlapped or folded Totals Icboratoiy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m V = EDS spectrum conforming to laboratory holes or opaque areas icentificalion criteria observed Chrysotile 'amphiboles'" Amphibole F = Singe Fiber Amosite B = Bundle (<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_21MC100_0 02866389

NYC-WTC_000212399