NYC-WTC_000226480

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6584 Filter Type / Filter Area: MCE 385 min- Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 8 Area Examined: 0.04496 mm= ■

GRID BOX: Magnification: 20,000 g^// GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/7/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS (Nonadb No F B C >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

TF^. ASM,? (f if 9 yy /I

SH —

Struct = > 0.5u > 5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped 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 >5p >/= EDS spectrum conforming to laboratory holes 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 Intersections) Anthophyllite Non-Asbestos T remoiite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002922586

NYC-WTC_000226487