NYC-WTC_000227093

NYC 9/11 Public Portal Document

If TEM Asbestos (air) Count Sheet Client Name: NN'C BOE Volume (liters): 1824, Lab Group tt-: 6880 Filter Type / Filter Area: MCE 385 mnr Lab Sample U: 1 Grid Opening Size: 0.01124 " - Client Sample 03 Area Examined: 0.04496 mrri-

GEUD BOX: Magnification: 20,000- GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/1/02

Analysis Performed By: PEysXkHOV

GO. I Structure Structure Type Length ID of structure Nor \ EDS (Nonadb No F B C M >=05 p ">=5p " Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements) ‘ -----------------i

------ crL-

3

Struct = >0.5u >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

EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% fTb C I M >5p holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole | F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Noil-Asbestos M = Matrix Tremolite 1 NSO = No Structures Detected Actinolite j Non-Identified j i

CITY_21MC100_002898301

NYC-WTC_000227093