NYC-WTC_000203489

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 9204 rilterJN3Qe/JFilterArea; MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 1 Area Examined: 0 04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure n or V EDS (Nonadb No F B C M >=05 M i>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

7^

H ! 1

Photo No (from 1 in b asDestos containing samples) Gnd acceptance Struct = > 0 5p >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals = Positive diffraction pattern oroperties conforming to <10% particulate coverage >50% coverage ate laooratory identification cnteria ooserved least 20 unfolded or overlapped grid squares .VI >OU i F B C <5% holes or opaque areas \/= EDS spectrum conforming to laboraiory Chrysotile I 'dentification critena observed , AMPHIBOLES j Amphibole p = Single F'ber i Amosite 3 = Bundle (<3 libers <1 fiber diameter apart i Crocidolite .Ambiguous ; Anthophyllite C = Cluster (>3 Intersections) I Tremolite Non-Asbestos M = Mainx ! Actinolite Non-Identified NSC = No Structures Detected

CITY_21MC100_003058247

NYC-WTC_000203489