NYC-WTC_000210548

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1320 Lab Group #: 6149 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 10 Grid Opening Size: 0.01124

Client Sample #: 015 Area Examined: 0.06744 mm*

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/19/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor 'I EDS (Non abb No F B C >=05 0 :>=5p Chp/s I Amphibole Nonasb Ambig/NC No Coord Elements) <5|J “ j

__ L_ Pz /I 3

I ____ ZZZZZIZEZ_ Struct = > 0.5 u > 5:1 Aspect Ratio Grid acceptance: >/= Positive diffraction pattern properties confomiing to <50% undissbtved filter, overlapped cr folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u y= EDS spectrum confomiing to laboratory holes or opaque areas identification criteria observed Chrysotile .AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersectiens) Anthophyllite Non-Asbestos T remolite M = Matrix Actinolite Non-ldentified NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021384

NYC-WTC_0002 10548