NYC-WTC_000207473

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE : . Volume (liters): 1928 Lab Group #: 8109' ' Filter Type / Filter Area: MCE '385 mm"' Lab Sample #: .8 Grid Opening Size: 0,01124

Client Sample #: .8 Area Examined: 0,04496 mm"

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openin2s: 4 Analysis Date: 6/15/02

Analysis Performed By: -MARK PEYSAKHOV:

GO. Structure Structure Type Length ID of Structure NorN ■ EDS No ■ (Nonadb F B C M >=05 p >=5p Chrys Arnphibole Nonasb Ambig/ND No Coord ■ <5p Elements)

Yg J

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% -F B C M >5m ■7= EDS spectrum conforming Io laboratory holes or opaque areas identification criteria obsenred ■ Chrysotile ■ amphiboles"; Amphibole F = Single Fiber Amosite • j B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ■ Ambiguous C = Cluster l>3 Intersections) Anthophyllite Non-Asbestos , Tremolite i M = Matrix Non-Identified Actinolite NSO = No Structures Detected ■

CrTY_21MC100_003015263 NYC-WTC_000207473