NYC-WTC_000193352

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC: BOE Volume (liters): 1856 Lab Group #: 8180 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #: 17 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/19/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor^ EDS (Nonadb No F B C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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Struct = > O.Sp > 5:1 .Aspect Katio Grid acceptance: V Positive diffraction pattern propert es conforming to ^50% undissolved filter, overlapped or folded Totals lat'Oratory identification criteria observed 10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m V- EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile [amphiboles Amphibole F =- Single Fiber I Amosite B = Bundle (<3 fibers <1 liber diametitr apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003094526

NYC-WTC_000193352