NYC-WTC_000196858

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: bfYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample 9 Grid Opening Size: 001124 Client Sample #: 11 Area Examined: 0 04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

I GO Structure Structure Type Length ID of Structure \i or y EDS No >=05 M :>=5iJ (Nonadb F B C M Chrys Amphibole Nonasb Ambig/MD No Coord <5p Elements) ~T ^2^ z-~;> •J

I T T

I I J II Hhoto No (from 1 in □ asbestos containing samples) Grid acceptance Struct = > 0 5lj >51 Aspect Ratio <50% undissoived filter, overlapped or folded Totals Positive diffraction oattem properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped gnd squares >5u j <5% holes or opaque areas F B C M v'= EDS spectrum conforming to laboratory identification critena observeo Chrvsotile ) amphiboles" Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite \on-Asbestos M = Matnx Actinolite Non-Identified I---- MSD = No Structures Cetected

CITY_21MC100_003057940

NYC-WTC_000196858