NYC-WTC_000206361

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Warren & Panzer Volume (liters): 1500 Lab Group #: 8411 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: DE002 Area Examined: 0.0562 mm^

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 7/8/02

Analysis Performed By: Z^Z ROMAN PEYSAKHOV

GO. i Structure Structure Type Length ID of Structure N or N EDS (Nonadb 1 No F B C M >=05 M >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord i <5u Elements)

1/ (/ Zf

Struct = > O.Sg > 5 ; 1 Aspect Ratio Grid acceptance:

4= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

V= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5p

identification cnteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix - Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003004241

NYC-WTC_000206361