NYC-WTC_000201795

NYC 9/11 Public Portal Document

TEM Asbestos fairVCount Sheet Client Name: NYGBOE Volume (litersi: 1840 f Lab Group #: 6988 i Filter Type / Filter Area: MCE 385 inm’ Lab Sample #: LI Grid Opening Size: PD1I24T T< .% .1 Client Sample #: 11 Area Examined: 0.04496 mm" GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: lOG KeV # Grid Openings: 4 Analysis Date: 3/8/02

Analysis Performed By: : . /■ 4- mark PEYSAKHOV

GO. . Structure Structure Type • Length ID of Structure -N or Y EDS ■ (Nonadb No I F B C i M >=05 p ■ '>=5l Chrys Amphibole Nonasb Ambig/ND Ng Cood <5p ElementE)

_ __ 1

A < <

Struct - > GAp > 5:1 Aspect Ratio f Grid acceptance:

9= Positive diffraction pattern properties conforming to <50% undissoived 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 >5u ■ . 9= EDS spectrum conforminc to laboratory holes or opaque areas identrication criteria observed Chrysotile AMPHIBOLES Amphibole . F = Single Fiber : f Amosite B = Bundle (<3 fibers <1fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite , Non-Asbestos Tremolite M = Matrix .. i Non-Identified Actinolite NSD = No Structures Detected .

CITY_21MC100_003269125

NYC-WTC_000201795