NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3900 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 6 Area Examined: 0.24728 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or V EDS No (Nonadb F B C M >=05 pi >=5)j Chrys Amphibole Nonasb Ambig/ND No, Coord <5m Elements)

V V vs.' zz

'/

zz{ 2)'^

zr - />■

Z'

Photo No, (from 1 in b asbestos containing samples) Grid acceptance: Struct = > 0.5|j > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals \'= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlaoped grid squares <5% M I >5u F i B C holes or opaque areas V= EDS spectrum conforming to laboratory Chrysotile identification cnteria observed AMPHIBOLES Amphibole F = Single Fiber Amosite 0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSO = No Structures Delected

CITY_21MC1OO_OO3O69438

NYC-WTC_000202894