NYC-WTC_000228122

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 lab Group #: 7060 Filter Type / Filter Area: MCE 385 Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm- GRID BOX: 92^ Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/13/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorV EDS (Nonadb ; No F B C M >=05 p >=5li Chrys Amphibole Nonasb Ambig/ND J^^iNo; Coord <6m Elements)

-V t i

p-T !----- h

Struct = > 0.5|i _> 5:! Aspect Ratio Grid acceptance; Positive diffraction pattern properties conforming to undiss^ed filter, ove^p^ or folded Totals laboratoty identification critsria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5p a)= EDS spectrum conforming to laboratoty holes or opaque areas idenfiflcalion criteria obsenred Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 Uber diameter apart Crocidolite Ambiguous C= Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldentified NSO = No Structures Detected

CITY_21MC100_013429111

NYC-WTC_000228122