NYC-WTC_000228898

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1800 Lab Grotip #: 7733 Filter Type / Filter Area: MCE 385 Lab Sample #: IO Grid Opening Size: 0.01124 Client Sample 12 Area Examined: 0.04496 mm^ GRID BOX: GRID ID: //as Magnification: Accelerating Voltage: 100 KeV 20 000

# Grid Openings; 4 Analysis Date: 5/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS (Nofiadb No F 8 C M >=D5U Chrys An^boie Nonasb AmDig/ND <5p Elements)

Struct = > 0.511 >5 :1 Aspect Ratio Grid acceptance; '/= Positive diriraction pattern properties conforming to <50% undissoived fitar. oteriapped or folded Totals laboratory idenBfiatiof, critsria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5^ EDS spectrum conforming to laboratory holes or opaque areas identification entena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite S = Bundle ) <3 fibers <1 fiber diameter apart Crocidolite Ambiguous C ' Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = lltetrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002901859

NYC-WTC_000228898