NYC-WTC_000203499

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0 01124

Client Sample #: 15 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: 2/^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of structure N or V EiDS (Nonadb No F B C M >=05 u i =5|J Chrys Amphibole Nonasb Ambig/NO

a No Coord <5m Elements)

I T

i ! A -‘hoto No (from 1 in a asoestos containing samples) Gnd acceptance Struct = > 0 5u >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive oiffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooraiory identification catena obsetveo least 20 unfolaed or overlaoped gnd squares F B C M <5% holes or opaque areas EDS spectrum conforming to laboratory i Chrysotile identification critena oosetveo i AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Sunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i Anthophyllite C = Cluster (>3 Intersections) ! Tremolite Non-Asbestos M = Matrix 1 Actinolite Non-Identified NSC = Mo Structures Detected

CITY_21MC100_0 03058261

NYC-WTC_000203499