NYC-WTC_000200257

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1840 Lab Group #: 7278 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 16 Grid Opening Size: 0.01124 . Client Sample #: 16 Area Examined: 0.04496 mmA GRID BOX: Magnification: . 20,000 _ GRIPED: i # Grid Opeaings: 4 w: Accelerating Voltage: Analysis Date: 100 KeV 3/31/02 I ' .

Analysis Performed By: ROMAN PEYSAKHOV

GO. ■ I Structure Structure Type Length ID of Structure N or . 7 EDS (Nonadb Nc F B C >=05 p Chrys Amphibole | Nonasb Amb'ig/'ND Nc Coord <5p . Elementsi

vzH

Struct = > 0.5g _> 5:1 Aspect Ratio Grid areeptance:

' Positive diffraction pattern properties conforming to <50% undisso^ved filter, overlapped or folded ' Totals <10% particulate coverage >50% coverage ate iaboratory identification criteria observed ’ least 20 unfolded oroveriapped grid squares <6% F B C I M >SM 7= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart i Crocioolite Ambiguous C = Cluster Intersections) : Anthophyllite Non-Asbestos Tremolite i M = Matrix Non-Identified Actinolite I NSD = No Structures Detected

CITY_21MC100_011274753

NYC-WTC_000200272