NYC-WTC_000210620

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 5994 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 3 Area Examined: 0.06744 mm’

GRID BOX: Magnification: 20 000 GRID ID: <3 ■Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 11 /29/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Stnjcture N or V EDS No >=05 u Amph*)oie (Nonadb C M Chrys Nonasb I Ambig/ND No Coord <5p Elements)

3 --- ! J" — __ I J__ I I I

Struct = > 0.5h > 5.1 Aspect Ratio Gnd acceptance: Positive diffraction pattern properties confonning to undissolved filter, overlapped or folded 'otais latioratory identification cntena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F B C >5m . "/= EDS spectrum confonning to laboratory M holes or opaque areas identification cntena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Croadolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Maim Non-Identified Actinolite NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000002606

NYC-WTC_000210620