NYC-WTC_000190252

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet ClientNaine- WC BOE Volume (liters): 1808 Lab Group #: 6854 Filter Tvpe / Filter Area- MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0 01124

Client Sample #: 15 Area Examined: 0 04496 nnm^

GRID BOX: Magnification: 20,000 GRID ID- > Accelerating Voltage: 100 KeV # Gnd Openings: 4 Analysis Date: 2-27/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or V EDS (Nonadb No F B C M >=05 pi : •=5p Chrys Amphibole Nonasb Ambig/ND No Cooid <5p Elements)

Sti Lict = > 0 5p >5 I Aspect Ratio Grid acceptance

Positive diffraction pattern propertes conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ale laooratory identification criteria observed least 20 unfolded or overlapped gnd squares <5% F B C M >5p EDS spectrum conforming to laborator/ holes or ooaque areas Identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No SIructures Detected

CITY_21MC100_003088920

NYC-WTC_000190252