NYC-WTC_000210578

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: Airtek Volume (liters): 1310 Lab Group #: 6152 Filter Type / Filter Area: MCE 385 Lab Sample #: 26 Grid Opening Size: 0.01124 Client Sample #: 041 Area Examined: 0.06744 mrn‘

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

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length iD of Structure N or '/ EDS No >=05 u (Nonadb F B i C M >=5tJ Chr/s Amphibole Nonasb Ambig/ND No Coord <5|J Elements)

1 ________ Struct = > 0.5u >5:1 Aspect Ratio Grid acceptance: 1/= 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 overlapped grid squares <5% F B C M >5p ^1= EDS spectnjm conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES I Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

CITY_DEP_WORBY_CANNATA_SUBP_000021415

NYC-WTC_000210578