NYC-WTC_000201325

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1840 Lab Group #: 7354 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 IP : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/8/02

Analysis Performed By; MARKPEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v I. EDS ■i (Nonadb No F 3 C M >^0571 I >=5p Chrys A.nphibole Nonasb Ambig/ND No Coord Elements)

J? '

■I

d

Struct = > P.5pi .> 5:1 Aspect Ratio Grid acceptarce:

7= Positive diffraction pattern properties confo'ming to <50% 'jndissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% y = ECS spectrum conforming to laboratory holes or opaque areas F B^c M >5u identification criteria obseived Chrysotile ■ AMPHIBOLES Amphibole F = Single Fiber I Amosite 3 = Bundle <3 fibers <1 fiber diameier apar, Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_011275623

NYC-WTC_000201328