NYC-WTC_000212536

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1920 Lab Group #: 7662 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 1 Grid Opening Size: 0.01124

C lient Sample #: 01 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV U Grid Openings: 4 Analysis Date: 5/7/02

Analysis Performed By: MARK PEYSAKHOV

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

—

Struct = > 0.511 > 5:1 Aspect Ratio GriiJ acceptance: J = Positive diffraction pattern properties conforming to <50% undissolved filter, overiapped or folded Totals laboraicry identification ciitena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M < = EDS spectrum confomiing to laboratory holes or opaque areas ijentificstjon critena observed Chrysotile AMPHIBOLES Amphibole = Single Fiber Amosite ; = Burole (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 3 = Cluster (>3 Intersections) Anthophyllite Non-Asbeslos T remolite 11 = Matrix Non-Identified Actinolite VSO Mo Structures Delecter.'

CITY_21MC100_002867006

NYC-WTC_000212536