NYC-WTC_000200947

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume fiiters): 1840 Lab Group #: 7766 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 05 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: ■5/16/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure 'StructureType I Length ID of Structure KotT EDS (Nonadb No F M >=05 u ” >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

. ■ i

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 7= 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 ■ 7= EDS spectrum conforming to laboratory holes or opaque areas identification criferia observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fi'der diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275292

NYC-WTC_000200951