NYC-WTC_000200897

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: XYf BOE Volume (liters): 1840 Lab Group #: ' 7731 Filter Type / Filter Area: MGE 385 mm* Lab Sample #: 3 / Grid Opening Size: 0 01124 Client Sample #: 03 Area Examined: 0,04496 GRID BOX: Magnification: 20 000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or Y EDS 7 No (Nonadb F B C M >=05 M >=5p Chrys Amphibale . Nonasb Ambig/ND Elements) No' Coord <5m 2^ u ZZ4ZZZ fl

Struct = > 0:5pi >5:l .Aspect Ratio Grid acceptance: 'i-Positive diffraction pattern properties conforming to. undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C A EDS specrrjn conforming to laboratory M >5F toles or opaque areas identification criteria observed Chrysotile i amphiboles""] Amphibole F = Single Fiber , Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous C = Cluster {>3 Intersections) Anthophyllite i Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC1OO_O11275224

NYC-WTC_000200899