NYC-WTC_000222596

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name; NYC BOE Vohime (liters): 1816 Lab Group #; 7539 - Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 10 Grid (;-iKiiing Size: 0.01124 Client Sample #: 13 Area rixamiiictl: 0.04496 mm’

GRID BOX: ■Maaiiincatioii: 20,000 GRID ID: <6 ■Accelerating Voltage: too KeV # Grid Openings: 4 ■-\:’.aiv:ds Date: 4/25/02

Analysis Perfurmed By; MARKPEVSAKHGV

I GO. Structure Structure Type Length ID or Structure Nor y ■EDS No (Nonadb F E . C M ■>=05 M Chrys Amphibc.: Nonasb Ambig/ND I No Coord <5u Elements)

I i I

I 1

J__ L

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: '1= Positive diffraction pattern properties confo "' ',g to <50% undissolved filter, ovesapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% / : F B C M >5p , "7= EDS spectrum conforming to laboratory ' holes or opaque areas identification criteria observed so'ile ■ AMPHIBOLES .A'" 'T; ihole ! F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart U .'US ' Crocidolite C = Cluster (>3 Intersections) Anthophyllite Ne! os Tremolite M = Matrix Actinolite :•' cd NSD = No Structures Detected

CITY_21MC100_002918228

NYC-WTC_000222596