NYC-WTC_000189445

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group 7095 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: 3/16/02

Analysis Performed By: MARK PEYSAKHOV

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

Struct = > 0.5)1 _> 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 least 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas identification catena observed Chrysotile AMPHIBOLES~1 Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003087240

NYC-WTC_000189458