NYC-WTC_000228779

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name; NYC BOE Volome 1824 Lab Group #: 7646 Filter Type / Fitter Area: MCE 385 Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample 17 Area E.tamined: 0.04496

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Pate: 5/5/02

Analysis Performed By: MARKPEYSAKHOV

GO. Structure Structure Type Length 10 of structure N or 4 EDS No {Nonadb F B C M >=05 p ~I >=5p Chrys Arrphiboie Nwiasb AnUig/ND Etemenis) No Coord ■■-Sp

a A

Struct = > O.5u >5:1 Aspect Ratio Grid acceptance ’/= PcsitivB diffiactton pattern properties conforming to <50% undissolved filter overlapped or folded Totals laboratory idantification criteria obsenred <10% particulate coverage >S0% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ’/= EDS spectrum xnlorm ng to laboratory doles 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 Interaections) Anthoptiyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002901672

NYC-WTC_000228779