NYC-WTC_000212583

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet C'lient Name: NYC BOE Volume (liters): 1920 Lab Group #: 7808 Filter Type / Filter Area: MCE 385 mm- 1 .ab Sample #: 14 Grid Opening Size: 0.01124

Ghent Sample #: 14 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/21/02

Analysis Performed By: ROMaIn' peysakhov

GO Structure Structure Type Length ID of Structiire N or 7 EDS " No (Nonadb j No Coord F B C >=05 p Chrys Amphitxjle Nonasb AmOig/ND Elements) i <5p

94 ~Z- (/ //

1

Struct = > 0.5p 5; 1 Aspect Ratio Grid aaeptance; «= Positive diffraction pattern properties confcrminq to <50% undissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5|j s = EDS spectrurn conforming tc laboratory holes or opaque areas identification cnteria observed Chrysotile AMPHIBOLES Amphibole I- = Single Fiber Amosite 0 Bunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbes*os Tremolite I«1 - Matrix Non-Identified Actinolite ivSD = No Structures Detected

CITY_21MC100_002867277

NYC-WTC_000212583