NYC-WTC_000201193

NYC 9/11 Public Portal Document

TEM Asbestos fairl Count Sheet Client Name: NYC BOE Volnme (liters): 1805 Lab Group #: 7924 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid Opening Size: 0.01124 i Client Sample #: 16 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20 000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/1/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS (Nonadb No F e c M >=05 M >=51J Ctirys Amphibole Nonasb ' Ambig/ND Elements) j No Coord

Xf

T

Struct = > 0.5p, .> 5: ] Aspect Ratio Grid accepiance; " fl \/= Positive diffraction pattern properties conforming io <50% undissolved filter, overlapped or folded Totals i f laborato^ identification criteria observed <10% particulate coverage >50% coverage ate

EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% F B c M >5p holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES 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 7 . Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275459

NYC-WTC_000201208