NYC-WTC_000215586

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group #: 6876 Filter Type / Filter Area: MCE 385 mm' Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 miTi-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/28/02

Analysis Performed By: • ■ ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Slruclure N or v EDS No (Nonadb F B C M >=05 p >=5p Chrys Amphibole ■ Nonasb Ambig/ND No Coord <5p Elements)

LXC

■ •|

Struct = > 0.5|i >5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded -Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B C M >5p >/= EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES • Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter-apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Ideiitified Actinolite NSD = No Structures Delected

CITY_21MC100_002872623

NYC-WTC_000215586