NYC-WTC_000212849

NYC 9/11 Public Portal Document

TEMA^bestosJ^irlCountSheet ! Client Name: NYC BOE Volume (liters): 1920 LibGroun^ 8052 Filter Type / Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRIIilD: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/11/02

Analysis Performed By: MARK PEYSAKHOV

GO. I Structure Structure Type Length ID of Structure N or V EOS i No >=05 M i>=5m (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5u

XT-5? --- -

Struct = > O Sp > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratorxi identification criteria ebserved <10% particifialB coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5|j •v = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Non-Asbestos Tremolite M - Matrix Non-ldentified Actinolite NSO = Nd Structures OeteOed

CITY_21MC100_002852437

NYC-WTC_000212849