NYC-WTC_000229113

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #: 7893 Filter Type I Filter Area: MCE 385 mm’

Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample it-. 16 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage; 100 KeV tt Grid Openings: 4 Analysis Date: 5/28/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. ■ structure Structure Type Lengft ID of Structure Norv EDS (hionadb No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/NO No Coord <5p Elements)

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: V= Positive diffractiori pattern properties conforming to <50% undissotwfl fiflar, oveflappec or towed Totals laboratory identification criteria reserved <10% particulate coverage >50% coverage ate

'J= EOS spectrum contwming to laboratory teas! 20 unfolded or overlappad grid squares <5% holes or opaque areas c M >5p

identfication cnteria observed Chrysoriie AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibets <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldentified NSD = No Structures Delected

CITY_21MC100_002902223

NYC-WTC_000229113