NYC-WTC_000227896

NYC 9/11 Public Portal Document

TEMAsbestosXair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6734 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #; 15 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 2/19/02

Analysis Performed By: M.ARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS No (Nonadb F B C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) '

Struct “ > 0.5p. > 5:1 Aspect Ratio Grid acceptance: n/’ Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% partculale coverage >50% coverage ate laboratory identification criteria observed least 20 unladed or overlapped grid squares <5% r F B ! C M i >5p V= EDS spectrum conforming to laboratory holes or opague areas L identification criteria observed Chrysotile i AMPHIBOLES : Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I Anthophyllite Non-Asbestos C = Cluster (>3 Intersections) Tremolite Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002899411

NYC-WTC_000227896