NYC-WTC_000228627

NYC 9/11 Public Portal Document

TEMAsbestosIairlCount Sheet Client Name; NYC BOE Volume (liters): 1800 Lab Group #• 7524 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #; 17 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRIDID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/24/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure N or V EDS : No (Nonadb i F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/NO Elements) i

m zm; it /y No Coord <5p

ffF

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 'l~ Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory ideriificafion criteria observed least 20 unfolded or overlapped grid squares <6% F B C M >/= EOS spectrum conforming to laboratory holes or opaque areas identificafion criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>; Intersections) Anthophyllite Non-Asbestos M = Matnx Tremolite Non-ldentified -tI Actinolite J NSD = NO Structures Detected

CITY_21MC100_002901160

NYC-WTC_000228627