NYC-WTC_000218117

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1920 Lab Group #: 6910 Filter Type / Filter Area: MCE ■ T.nr Lab Sample#: 10 Grid Opening Size: 0.01124

Client Sample #: 10 Area Examined: 0.04496 mm-

GRID BOX: --5’' Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/3/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS (NonaOD No F B C M >=05 M Chrys Amphibole Nonasb I A.mbig/ND No Coord <5u ! Eiementsi ------------------ 1------------------

<6 er c.,-.

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties conforming to ^50% Totals laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% FIB C I M >5u >/= EOS spectrum conforming to laboratory holes or opaque areas identificatiori critena observed Chrysotile amphiboles ■Amphibole F = Single Fiber Amosite Crocidolite Ambiguous i B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i T remolite M = Matrix Actinolite Non-ldentified ! NSD = No Structures Detected

CITY_21MC100_000465913 NYC-WTC_000218117