NYC-WTC_000201931

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name; NYC BOE Volume /liters'): 1840 Lab Group #: 6746 Filter Type / Filter Area: MCE 385 mm- Lab Sample /?: Grid Opening Size: 0.01124 Client Sample #: 02 AjytiyEDtEunhjeuL 0.04496 mm-

GRID BOX: Magnilication: 20,000 GRID ID : Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 2/20/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type - Length ID of Structure N or 2 EL; No (Nonadb j F B u M >=G5u >=54 , Shrys Amphibole i Nonasc Ambig/ND No Coord <5p Eiementsj I

Struct = > 3.5pt > 5': 1 .Aspect Ratio Grid acceptance; 0= Positive diffractior pattern properties Gonforrriing to <50% undissolved filter, overispped or fclded Totals laboratory identification critaria obsen/ed <10% particulats coverage >50% coverage ate least 20' unfolded oroveriapped grid squares <5% F B C ■M >5j 2- EDS spectrum ccnforming to laboratory heies 0:- opaque areas identification criteria observed . Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apar. Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyilite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSD = Nil Structures Detected

CITY_21MC100_003269689

NYC-WTC_000201931