NYC-WTC_000210633

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 5802 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 19 Grid Opening Size: 0.01124 Client Sample #: 22 - Area Examined: 0.06744 mm^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure NorN EDS (Nonadb No F B C M >=05 M :>=5p Chrys Amphibole Nonasb Ambig/ND Coord Elements) <5m

z; ff /( (I

i Vz- ---------------

Struct = > 0 5)1 _> 5:1 Aspect Ratio Gnd acceptance: ■7= Posihve diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification cntena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped gnd squares <5% F B C M >5m EDS spectrum conforming to laboratory holes or opaque areas Identification cntena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos I Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000002707

NYC-WTC_000210633