NYC-WTC_000203478

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0 04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length lOofStrurture N or V EDS No (Nonadb F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND <5U Elements)

2^3 If (( (I

i Photo No (from 1 in 5 asbestos containing samples) Gnd acceptance Struct = > 0 5p .> 5 1 Aspect Ratio <50% undissolved filter, ovedapped or folded Totals V = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification critena observed least 20 unfolded or overlapped gnd squares <5% F B C M >5m holes or opaque areas '/= EDS spectrum conforming to laboratory Chrysotile Identification cnteria observed AMPHIBOLES ' Amphibole F = Single Fiber Amosite ) 3 = Bundle {<3 fibers <1 fiber diameter apart Crocirdolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified j Actinolite NSD = No Structures Detected

CITY_21MC100_003058148

NYC-WTC_000203478