NYC-WTC_000201885

NYC 9/11 Public Portal Document

TEM Asbestos (air)-Count Sheet Client Name: NYC BOE Volume (liters): 1840' Lab Group #: .6584 Filter Type / Filter Area: MCE, 385.min= Lab Sample #: 3 Grid Opening Size: 0.01124.

Client Sample #: Area Examinetl: 0.04496 mm-

GRID BOX: Magnification: ; 20.000 GRID ID: Accelerating Voltage: lOOKeV # Grid Openings: 4 . Analysis Date: 2/7/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure ^ype Length ID of Structure N or 4 EDS - No (Nonadb F B i C M >=05 J Chrys Amphibole Norasb Ambig/ND No Cool'd <5p Elements) T

Struct = > 0.5|i -> 5:,1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laoorctory icentification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5|J ■/= EDS spectrum conforming to laboratory holos or opsquG areas identification criteria observed Chrysotile AMPHIBOLES |' Amphibole F = Single Fiber Amosite i B = Bundle /i fibers <1 fiber diameter apart - Crocidolite ' Ambiguous C = Cluster [>3 intersections) Anthophyllite Non--Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = Nc Structures Detected

CITY_21MC100_003269403

NYC-WTC_000201885