NYC-WTC_000218075

NYC 9/11 Public Portal Document

IXMAsbestos(aiil_Cmint.Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6872 Filter Type / Filter Area: MCE 3S5 mm- Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04490 mm-

GRID BOX. Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/1/02

•Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V i EDS No F B C M >=05 u >=5|J Chrys Amphibole Nonasb TSlSglNoH i No Coord <5m I Elements) ;

I -•

Struct = > 0.5p > 5; I Aspect Ratio Grid acceptance: V- Positive diffraction pattern properties conforming to <50% undissQlved filter, overlapped or folded laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B i C : M I >5u v= EDS spectrum conforming to laboratory holes or opaque areas --- ---------- i----- Identification cniena observed Clvysoiile i i i AMPHIBOLES Amphibole | F = Single Fiber Amosite i I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ) C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos ! Tremolite M = Matrix i Non-Ideniified ’ Actinolite I I NSD = No Structures Detected

CITY_21MC100_000465846 NYC-WTC_000218075