NYC-WTC_000207931

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NV’C BOE Volume (liters): 1920 Lab Group #: 9205 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 mnr

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

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EOS No (Nonadb F B C M :>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

T IL

T I

I

I I

Photo No (from 1 in □ asoestos containing samp es) Grid acceptance: Struct = > O.Su > 5:1 Aspect Ratio <50% undissolvea filter, overlapped or folded Totals 'J- Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification cnteria observed least 20 unfolded or overlapped gnd squares >5p i’ <5% holes or opaque areas F B C ■/= EDS spectrum conforming to laboratory identification cnteria observed Chrysotile j .AMPHIBOLES i Amphibole F = Single Fiber I Amosite I 3 = 3undle (<3 fibers <1 fiber diameter aoart ; Crocidolite Ambiguous C = Cluster (>3 Intersections! Anthophyllite Tremolite Non-Asbestos i M = Matnx Actinolite Non-Identified NSO = No Structures Detected

CITY_21MC100_003017264

NYC-WTC_000207931