TEM Asbestos air sample results, NYC BOE, Feb 2002

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Yame: WC BOE Volume (liters): 1824 Lab Group #: 6705 Filter Tvpe / Filter ■Area: MCE 385 mm- Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: ■Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/17/02

Analysis Performed By: ROMAN PEYSAKHOV

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

■

_________

Struct = > O-iu >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 ate least 20 unfolded or overapped grid squares <5% ■ F i B ! C I M I >5u N‘= EDS spectrum conforming to laooratory holes or opaque areas identirlcation criteria observed Chrysotile j I I ■AMPHIBOLES Amphibole I F = Single Fiber I Amosite ' 3 = Bundle (<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i ' Tremolite M = Matrix Non-Identified i Actinolite NSD = No Structures Detected J___ L

CITY_21MC100_003103264

NYC-WTC_000183804