NYC-WTC_000229086

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volnme titters); 1800 Lab Group 7879 Filter Type / Filter Area: MCE 385 mm^ Lab Sample 9 Grid Opening Size; 0.01124 Client Sample #: 11 Area Examined; 0.04496 mm- GRIP BOX: Magnlfigatioo: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date; 5/26/02

Analysis Performed By: MARK PEYSAKHOV

60. Structure Structure Type Length ID Of Structure N or EOS No (Wofiadb F B C M >=05 (J 5^5(7 Chrys Amphibole Nonasb Ambig/ND Etemente) No Coord <5tJ

Struct = > 0.5 u >5:1 Aspect Ratio Grid acceptanra; >1= Positive diffraction pattern properties conforming to <50% undisaotvad iltcf overtapped or folded Totals latxxatoiy ideiitilicatton criteria observed <10% particulata coverage >50% coverage ate leait 20 untoWad or overiappeC grW squares <5% F B C M >5tJ 'i- EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F - Single fiber Amosite 0 = Sundfe (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Inteisections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinofife Non-Identified NSD = Ho Structures Detected

CITY_21MC100_002902170

NYC-WTC_000229086