NYC-WTC_000201111

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7878 Filter Type / Filter Area: MCE 385 Lab Sample #: 4 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20 000 GRID ED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/26/02

Analysis Performed By: MARKPEYSAKHOV

//GO. Structure Structure Type Length ID of structure N or 7 EDS ■ (Nonadb > No F B C M >=05 p Chrys Amphibole Nonasb Rmaig/ND ■>'2 ' 7 : blo ' Coord <5p Elements)

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>>7 Struct = > 0.5prt> 5:( Aspect Ratio Grid acceptance: 7) ’• 7= Positive diffraction pattern properties conforming to <50% undissDlved filter, ovedapped or folded Totals laboratory identilication criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M I >5u f 7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed ’ Chrysotile rAMPHlBOLES Amphibole : F = Single Fiber i Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Arnbiguous C = Cluster (>3 Intersections) Anthophyllite ) Non-Asbestos ' Tremolite i M = Matrix i;,:, Actinolite Non-Identified N S D = N 0 Structures Detected

CITY_21MC100_011275403

NYC-WTC_000201114