NYC-WTC_000228815

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volnme (liters): 1800 Lab Group 7672 Filter Type / Filter Area: MCE 385 Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample#: 07 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIDID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/8/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or N EOS No fNonadb F 0 C M >=5pi Chrys Amphibole i Nonasb Ambig/ND

rfe: No Coord <Su Elerrtents)

Struct = > 0.5p >5:1 Aspect Ratio Gnd accepance- '1- Positive diffraction pattern properties conforming to <50% jndissolred Ster, overlapped or folded Totals laboratory denfiftcation criteria observed <10% partculata coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% f F B c M 4- EDS spectrum eonfomiing to laboratory holes or opaque areas identification criteria observed Chrysotile amphiboles Amphibole F = Single Fiber Amosite +• Ambiguous ! B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Anthophyllite t C = Cluster (>3 Intersections) Non-Asbestos i Tremolite M = Matrix Actinolite Non-Identified NSC = No Structures Delected

CITY_21MC100_002901734

NYC-WTC_000228815