NYC-WTC_000217792

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOF. Volume (liters): 192(1 Lab Group #: 6556 Filter Type / Filter Area: MCE 355 mm- Lab Sample #: 2 Grid Opening Size: 0.01 124

Client Sample #: 2 Area Examined: 0,04496 mnr

GRID BOX: Magnification: 20,000 GRID ID: <3 Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2'4/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or \ I EDS 5——77^—i (Nonadb i No F B C M >=05 p >=5p Chrys AmphiDole Nonasb Amoiq/ND i No Coord <5p I Elements) I

d —F

Struct = > ().5p >5:1 Aspect Ratio Grid acceptance;

V= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ale laboratory identification criteria observed least 20 unfolded or overtapped grid squares <5% F ! B 1 C i M i \= EOS spectrum conforming to laboratory holes or opaque areas ___ _____ __________ t Chrysotile idenlification criteria observed AM PHI BOLES Amphibole 1 F = Single Fiber Amosite Ambiguous i B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_002877866

NYC-WTC_000217792