NYC-WTC_000219545

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #: 6942 Filter Type / Filter Area: MCE 385 ninr Lab Sample #: 14 Grid Opening Size: 0,01 124

Client Sample #: 16 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3 6/02

Analysis Performed By: M.ARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure or A ecs iNonaat No F 6 C M >=05 p >=5p Chrys Amphibote Nonasb j AmbigiND No Coord Fenienis <5m

45

-I—

Struct - ■ t) 5p -5 1 Aspect Ratio Grip acceptance

V = Positive diffraction pattern properties conforming to <50% undissolueo filter, overlapped or folded Totals <10% paniculate coverage >50% coverage ale laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% : F I B C , M \ = EDS spectrum conlorniing to laboratory holes or opaque areas identification critena observed C luysotilc .AMPHIBOLES i .Amphibole ; F = Single Fioer Amosite Crocidolite Ambiguous I S = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 intersections! Anthophyllite Son-.Asbestos Tremolite M < Matrix Actinolite Non-ldentified NSD < No Structures Delected

CITY_21MC100_002881252

NYC-WTC_0002 19545