NYC-WTC_000208251

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NX'C BOE Volume (liters): 1920 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 Iff Cl Lab Sample #: 10 fidlLQELninoSi^ 0.01124

Client Sample #: 10 AreaENiiniin^ 0.04496 mm"

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV Grid Openings: 4 Analysis Date: 9/10/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v EOS (Nonadb No F B C M VoT(i i Chrys Amphibole Nonasb Ambic/ND No Coord Elemenisi

^.7

Struct = > 0.511 • 5:1 Aspect Ratio Grid accepiancei

Positive diffracticn pattern properties conform ig to <5C% undissoived filter overlaaped or folded Totals <'G% oaracjiate coverage >50% coverage ate laborator/ .dentificaticn criteria oosetvec east 20 untoiced or ovenapoed grid squares <5% ■ F I B I C I M ' >5m \ = EDS spectrum conforming to laboratory holes or opaciue areas laentifdation criteria observed Chrysotile 1 i \ AMPHIBOLES Amphibole F = Slagle Fiber Amostfe B = Bundle (<3 fibers <1 aber diameter apan Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite i Non-Ideniified NSD = No Structures Detected

CITY_21MC100_003021242

NYC-WTC_000208251